There are 326 insects that start with the letter A, from Aardwolf to Azalea Lace Bug. Below you will find them listed alphabetically along with some general information about each. Click the toggle view buttons in the top right corner to switch between the card and the table view.
For each item you will find the following information
Order: The subclass the insects belongs to
Habitat: The places or type of weather the insects lives in
Scientific name: The designation that scientists use to catalog the species
Name: Aardwolf
Order: Hymenoptera
Habitat: Worldwide
Scientific name: Aenictus
Name: Abax Beetle
Order: Coleoptera
Habitat: Europe
Scientific name: Abax
Name: Abdomen Ant
Order: Hymenoptera
Habitat: Tropical Forests
Scientific name: Anochetus abditus
Name: Abeille's Ant
Order: Hymenoptera
Habitat: Africa
Scientific name: Tapinoma beilleanum
Name: Aberrant Ant
Order: Hymenoptera
Habitat: Tropical Forests
Scientific name: Cephalotes aberrans
Name: Acalles Weevil
Order: Coleoptera
Habitat: Forest
Scientific name: Acalles spp.
Name: Acanthocephalan Beetle
Order: Coleoptera
Habitat: Aquatic
Scientific name: Acanthocephala spp.
Name: Acanthocinus Beetle
Order: Coleoptera
Habitat: Woodlands
Scientific name: Acanthocinus aedilis
Name: Acanthomera Fly
Order: Diptera
Habitat: Forests
Scientific name: Acanthomera sp.
Name: Acanthomyops Ant
Order: Hymenoptera
Habitat: Forests
Scientific name: Acanthomyops
Name: Acanthophorus Beetle
Order: Coleoptera
Habitat: Forest
Scientific name: Acanthophorus spp.
Name: Acanthoplus Katydid
Order: Orthoptera
Habitat: Grasslands
Scientific name: Acanthoplus
Name: Acanthoscelides Seed Beetle
Order: Coleoptera
Habitat: Grassland
Scientific name: Acanthoscelides spp.
Name: Acanthosphinx Moth
Order: Lepidoptera
Habitat: Tropical Forests
Scientific name: Acanthosphinx gorgoniades
Name: Acarid Mite
Order: Acari
Habitat: Soil
Scientific name: Acaridae spp.
Name: Acarina Tick
Order: Acari
Habitat: Grasslands
Scientific name: Acarina sp.
Name: Acartia Copepod
Order: Copepoda
Habitat: Marine
Scientific name: Acartia spp.
Name: Accentor Moth
Order: Lepidoptera
Habitat: Woodland
Scientific name: Accentuaria spp.
Name: Accessary Ant
Order: Hymenoptera
Habitat: Forest
Scientific name: Acropyga spp.
Name: Acenopterus Weevil
Order: Coleoptera
Habitat: Forest
Scientific name: Acenopterus spp.
Name: Acentria Moth
Order: Lepidoptera
Habitat: Aquatic
Scientific name: Acentria ephemerella
Name: Achaearanea Spider
Order: Araneae
Habitat: Varied
Scientific name: Achaearanea
Name: Achalcus Fly
Order: Diptera
Habitat: Woodland
Scientific name: Achalcus spp.
Name: Achorutes Springtail
Order: Collembola
Habitat: Soil
Scientific name: Achorutes spp.
Name: Acizzia Jumping Plant Louse
Order: Hemiptera
Habitat: Woodlands
Scientific name: Acizzia sp.
Name: Acmaeodera Jewel Beetle
Order: Coleoptera
Habitat: Deserts
Scientific name: Acmaeodera sp.
Name: Aconitum Beetle
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Aconitum sp.
Name: Acorn Moth
Order: Lepidoptera
Habitat: Oak Forests
Scientific name: Valentinia glandulella
Name: Acorn Plume Moth
Order: Lepidoptera
Habitat: Oak Forests
Scientific name: Platyptilia carduidactyla
Name: Acorn Weevil
Order: Coleoptera
Habitat: Northern Hemisphere
Scientific name: Curculio
Name: Acraea Butterfly
Order: Lepidoptera
Habitat: Africa
Scientific name: Acraea
Name: Acridotheres Starling
Order: Coleoptera
Habitat: Urban Areas
Scientific name: Acridotheres sp.
Name: Actias Silk Moth
Order: Lepidoptera
Habitat: Temperate Forests
Scientific name: Actias sp.
Name: Adder Fly
Order: Neuroptera
Habitat: Worldwide
Scientific name: Raphidioptera
Name: Adder's-tongue Beetle
Order: Coleoptera
Habitat: Grasslands
Scientific name: Languria mozardi
Name: Adelges Woolly Adelgid
Order: Hemiptera
Habitat: Forests
Scientific name: Adelges sp.
Name: Adelpha Butterfly
Order: Lepidoptera
Habitat: Tropical forests
Scientific name: Adelpha
Name: Adirondack Ant
Order: Hymenoptera
Habitat: Temperate Forests
Scientific name: Formica adirondackensis
Name: Adonis Blue Butterfly
Order: Lepidoptera
Habitat: Grasslands
Scientific name: Lysandra bellargus
Name: Adriatic Hornet
Order: Hymenoptera
Habitat: Coastal Regions
Scientific name: Vespa crabro
Name: Aedes Mosquito
Order: Diptera
Habitat: Wetlands
Scientific name: Aedes sp.
Name: Aegean Longhorn Beetle
Order: Coleoptera
Habitat: Mediterranean Forests
Scientific name: Aegosoma scabricorne
Name: Aegean Scorpion
Order: Scorpiones
Habitat: Mediterranean Regions
Scientific name: Mesobuthus gibbosus
Name: Aehrenholtz's Longhorn Beetle
Order: Coleoptera
Habitat: Deciduous forests
Scientific name: Aehrenholtzius
Name: Aelurillus Jumping Spider
Order: Araneae
Habitat: Grasslands
Scientific name: Aelurillus sp.
Name: Aesalus Stag Beetle
Order: Coleoptera
Habitat: Deciduous forests
Scientific name: Aesalus
Name: Aeschnophlebia Dragonfly
Order: Odonata
Habitat: Freshwater
Scientific name: Aeschnophlebia sp.
Name: Aesculapian Ant
Order: Hymenoptera
Habitat: Deciduous forests
Scientific name: Messor aesculapii
Name: Aesculapian Snake-fly
Order: Neuroptera
Habitat: Temperate Forests
Scientific name: Raphidia ophiopsis
Name: Aesopia Sole
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Aesopia sp.
Name: Aethaloptera Caddisfly
Order: Trichoptera
Habitat: Freshwater
Scientific name: Aethaloptera sp.
Name: Aetna Beetle
Order: Coleoptera
Habitat: Deserts
Scientific name: Aetna sp.
Name: African Armyworm Moth
Order: Lepidoptera
Habitat: Grasslands
Scientific name: Spodoptera exempta
Name: African Bat Bug
Order: Hemiptera
Habitat: Caves
Scientific name: Cacodmus invictus
Name: African Beetle
Order: Coleoptera
Habitat: Savanna
Scientific name: Goliathus spp.
Name: African Dragonfly
Order: Odonata
Habitat: Wetlands
Scientific name: Aethriamanta spp.
Name: African Dung Beetle
Order: Coleoptera
Habitat: Savanna
Scientific name: Onthophagus spp.
Name: African Fig Fly
Order: Diptera
Habitat: Tropical forests
Scientific name: Ceratitis capitata
Name: African Giant Cockroach
Order: Blattodea
Habitat: Tropical Forests
Scientific name: Macropanesthia rhinoceros
Name: African Giant Snail
Order: Gastropoda
Habitat: Tropical Forests
Scientific name: Achatina fulica
Name: African Honey Bee
Order: Hymenoptera
Habitat: Savanna
Scientific name: Apis mellifera scutellata
Name: African Palm Weevil
Order: Coleoptera
Habitat: Palm plantations
Scientific name: Rhynchophorus phoenicis
Name: African Praying Mantis
Order: Mantodea
Habitat: Savanna
Scientific name: Sphodromantis spp.
Name: African Rhinoceros Beetle
Order: Coleoptera
Habitat: Savanna
Scientific name: Oryctes monoceros
Name: African Scorpion
Order: Scorpiones
Habitat: Savanna
Scientific name: Pandinus imperator
Name: African Spider
Order: Araneae
Habitat: Savanna
Scientific name: Nephila spp.
Name: African Stink Bug
Order: Hemiptera
Habitat: Savanna
Scientific name: Macrorhaphis acuta
Name: African Termite
Order: Isoptera
Habitat: Savanna
Scientific name: Macrotermes spp.
Name: African Tiger Moth
Order: Lepidoptera
Habitat: Savanna
Scientific name: Amata spp.
Name: African Tree Frog
Order: Anura
Habitat: Tropical Forests
Scientific name: Leptopelis spp.
Name: Afrotropic Ant
Order: Hymenoptera
Habitat: Tropical Forests
Scientific name: Dorylus spp.
Name: Agabus Crawling Water Beetle
Order: Coleoptera
Habitat: Freshwater
Scientific name: Agabus sp.
Name: Agama Beetle
Order: Coleoptera
Habitat: Desert
Scientific name: Anthicus agama
Name: Aganippe Spider
Order: Araneae
Habitat: Arid regions
Scientific name: Aganippe
Name: Agaric Fungus Gnat
Order: Diptera
Habitat: Temperate Forests
Scientific name: Mycetophila spp.
Name: Agate Snail
Order: Gastropoda
Habitat: North America
Scientific name: Succineidae
Name: Agathidium Round Fungus Beetle
Order: Coleoptera
Habitat: Forests
Scientific name: Agathidium
Name: Agave Snout Weevil
Order: Coleoptera
Habitat: Deserts
Scientific name: Scyphophorus acupunctatus
Name: Agdistis Moth
Order: Lepidoptera
Habitat: Worldwide
Scientific name: Agdistidae
Name: Agelastica Leaf Beetle
Order: Coleoptera
Habitat: Forests
Scientific name: Agelastica sp.
Name: Agelena Spider
Order: Araneae
Habitat: Grasslands
Scientific name: Agelena sp.
Name: Aggressive Ant
Order: Hymenoptera
Habitat: Tropical Forests
Scientific name: Odontomachus spp.
Name: Aggressive Wasp
Order: Hymenoptera
Habitat: Temperate Regions
Scientific name: Vespula spp.
Name: Agile Ant
Order: Hymenoptera
Habitat: Worldwide
Scientific name: Linepithema humile
Name: Agile Ground Beetle
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Calathus spp.
Name: Aglia Moth
Order: Lepidoptera
Habitat: Temperate forests
Scientific name: Aglia tau
Name: Agonum Ground Beetle
Order: Coleoptera
Habitat: Forests
Scientific name: Agonum sp.
Name: Agriades Butterfly
Order: Lepidoptera
Habitat: Holarctic
Scientific name: Agriades
Name: Agrilus Jewel Beetle
Order: Coleoptera
Habitat: Forests
Scientific name: Agrilus sp.
Name: Agrion Damselfly
Order: Odonata
Habitat: Wetlands
Scientific name: Calopteryx spp.
Name: Agriotes Click Beetle
Order: Coleoptera
Habitat: Grasslands
Scientific name: Agriotes sp.
Name: Agrius Hawk Moth
Order: Lepidoptera
Habitat: Worldwide
Scientific name: Agrius
Name: Agroiconota Leaf Beetle
Order: Coleoptera
Habitat: Tropical forests
Scientific name: Agroiconota
Name: Ah-tah Ant
Order: Hymenoptera
Habitat: Tropical Forests
Scientific name: Azteca spp.
Name: Ahasverus Beetle
Order: Coleoptera
Habitat: Worldwide
Scientific name: Ahasverus
Name: Aibonito Giant Spider
Order: Araneae
Habitat: Tropical Forests
Scientific name: Thrixopelma ockerti
Name: Aides Ant
Order: Hymenoptera
Habitat: South America
Scientific name: Aides
Name: Ailanthus Webworm Moth
Order: Lepidoptera
Habitat: Eastern North America
Scientific name: Atteva aurea
Name: Aizo Ant
Order: Hymenoptera
Habitat: Tropical Forests
Scientific name: Camponotus aizo
Name: Ajanthura Isopod
Order: Isopoda
Habitat: Marine
Scientific name: Ajanthura sp.
Name: Akbar's Swallowtail Butterfly
Order: Lepidoptera
Habitat: Tropical forests
Scientific name: Atrophaneura akbar
Name: Akbès Ant
Order: Hymenoptera
Habitat: Temperate Forests
Scientific name: Formica akbesiana
Name: Alabama Bark Beetle
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Ips avulsus
Name: Alaptus Fairyfly
Order: Hymenoptera
Habitat: Forests
Scientific name: Alaptus sp.
Name: Alaska Birchleaf Aphid
Order: Hemiptera
Habitat: Boreal Forests
Scientific name: Euceraphis betulae
Name: Alaska Bumblebee
Order: Hymenoptera
Habitat: Tundra
Scientific name: Bombus polaris
Name: Alaska Dart Moth
Order: Lepidoptera
Habitat: Tundra
Scientific name: Xestia alaskae
Name: Alaska Firefly
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Ellychnia corrusca
Name: Alaska Giant Ichneumon Wasp
Order: Hymenoptera
Habitat: Boreal Forests
Scientific name: Megarhyssa macrurus
Name: Alaska Ground Beetle
Order: Coleoptera
Habitat: Tundra
Scientific name: Pterostichus spp.
Name: Alaska Mouse Beetle
Order: Coleoptera
Habitat: Tundra
Scientific name: Catops spp.
Name: Alaska Pomace Fly
Order: Diptera
Habitat: Tundra
Scientific name: Drosophila alaskensis
Name: Alaska Ringlet Butterfly
Order: Lepidoptera
Habitat: Tundra
Scientific name: Coenonympha kodiak
Name: Alaska Rose Slug
Order: Hymenoptera
Habitat: Temperate Forests
Scientific name: Arge rosae
Name: Alaska Sailfin Moth
Order: Lepidoptera
Habitat: Boreal Forests
Scientific name: Pterophorus monodactyla
Name: Alaska Shore Fly
Order: Diptera
Habitat: Coastal Regions
Scientific name: Ephydra spp.
Name: Alaska Stonefly
Order: Plecoptera
Habitat: Streams
Scientific name: Megaleuctra spp.
Name: Alaskan Ant
Order: Hymenoptera
Habitat: Tundra
Scientific name: Linepithema humile
Name: Alaskan Bark Beetle
Order: Coleoptera
Habitat: Boreal Forests
Scientific name: Ips perturbatus
Name: Alaskan Beetle
Order: Coleoptera
Habitat: Tundra
Scientific name: Pterostichus brevicornis
Name: Alaskan Brook Stickleback
Order: Actinopterygii
Habitat: Streams
Scientific name: Culaea inconstans
Name: Alaskan Centipede
Order: Chilopoda
Habitat: Tundra
Scientific name: Scolopocryptops spp.
Name: Alaskan Crane Fly
Order: Diptera
Habitat: Tundra
Scientific name: Tipula spp.
Name: Alaskan Diving Beetle
Order: Coleoptera
Habitat: Freshwater
Scientific name: Acilius spp.
Name: Alaskan Dragonfly
Order: Odonata
Habitat: Wetlands
Scientific name: Leucorrhinia hudsonica
Name: Alaskan Leaf Beetle
Order: Coleoptera
Habitat: Boreal Forests
Scientific name: Chrysomela spp.
Name: Alaskan Mosquito
Order: Diptera
Habitat: Tundra
Scientific name: Aedes punctor
Name: Alaskan Musk Ox Fly
Order: Diptera
Habitat: Tundra
Scientific name: Hypoderma tarandi
Name: Alaskan Sawfly
Order: Hymenoptera
Habitat: Boreal Forests
Scientific name: Pikonema alaskensis
Name: Alaskan Stag Beetle
Order: Coleoptera
Habitat: Boreal Forests
Scientific name: Sinodendron rugosum
Name: Alaskan Wasp
Order: Hymenoptera
Habitat: Tundra
Scientific name: Dolichovespula arenaria
Name: Alauda Ant
Order: Hymenoptera
Habitat: Grasslands
Scientific name: Anoplolepis alauda
Name: Alaus Beetle
Order: Coleoptera
Habitat: Deciduous forests
Scientific name: Alaus
Name: Alaus Click Beetle
Order: Coleoptera
Habitat: Forests
Scientific name: Alaus sp.
Name: Albanese Leaf Beetle
Order: Coleoptera
Habitat: Mediterranean regions
Scientific name: Albanese
Name: Albertine Rift Butterfly
Order: Lepidoptera
Habitat: Tropical forests
Scientific name: Cymothoe alberthis
Name: Albino Ant
Order: Hymenoptera
Habitat: Tropical Forests
Scientific name: Atta cephalotes
Name: Alcon Blue Butterfly
Order: Lepidoptera
Habitat: Grasslands
Scientific name: Phengaris alcon
Name: Alder Beetle
Order: Coleoptera
Habitat: Europe
Scientific name: Agelastica alni
Name: Alder Flea Weevil
Order: Coleoptera
Habitat: Europe
Scientific name: Orchestes fagi
Name: Alder Leaf Beetle
Order: Coleoptera
Habitat: Europe
Scientific name: Agelastica alni
Name: Alder Sawfly
Order: Hymenoptera
Habitat: Europe
Scientific name: Arge pullata
Name: Alder Slug
Order: Gastropoda
Habitat: Europe
Scientific name: Leidyula
Name: Alder Snout Moth
Order: Lepidoptera
Habitat: Europe
Scientific name: Potamia
Name: Alderfly
Order: Megaloptera
Habitat: Temperate Forests
Scientific name: Sialis spp.
Name: Aldrovanda Moth
Order: Lepidoptera
Habitat: Wetlands
Scientific name: Parapoynx stratiotata
Name: Aleochara Rove Beetle
Order: Coleoptera
Habitat: Grasslands
Scientific name: Aleochara sp.
Name: Alepocharina Caddisfly
Order: Trichoptera
Habitat: Freshwater
Scientific name: Alepocharina sp.
Name: Aleppo Bug
Order: Hemiptera
Habitat: Arid regions
Scientific name: Apodiphus amygdali
Name: Aleutian Ant
Order: Hymenoptera
Habitat: Tundra
Scientific name: Lasius alaskensis
Name: Aleutian Dragonfly
Order: Odonata
Habitat: Wetlands
Scientific name: Somatochlora sahlbergi
Name: Aleutian House Centipede
Order: Chilopoda
Habitat: Tundra
Scientific name: Lithobius spp.
Name: Alfalfa Ant
Order: Hymenoptera
Habitat: Grasslands
Scientific name: Formica xerophila
Name: Alfalfa Aphid
Order: Hemiptera
Habitat: Worldwide
Scientific name: Therioaphis trifolii
Name: Alfalfa Butterfly
Order: Lepidoptera
Habitat: North America
Scientific name: Colias eurytheme
Name: Alfalfa Weevil
Order: Coleoptera
Habitat: Worldwide
Scientific name: Hypera postica
Name: Alfken's Bee
Order: Hymenoptera
Habitat: Grasslands
Scientific name: Andrena alfkenella
Name: Algae Ant
Order: Hymenoptera
Habitat: Tropical Forests
Scientific name: Azteca alfari
Name: Algerian Fire Ant
Order: Hymenoptera
Habitat: Mediterranean Regions
Scientific name: Messor barbara
Name: Algerian Ground Beetle
Order: Coleoptera
Habitat: Mediterranean Regions
Scientific name: Carabus coriaceus
Name: Algerian Praying Mantis
Order: Mantodea
Habitat: Mediterranean Regions
Scientific name: Iris oratoria
Name: Algerian Scorpion
Order: Scorpiones
Habitat: Mediterranean Regions
Scientific name: Buthus occitanus
Name: Algerian Termite
Order: Isoptera
Habitat: Mediterranean Regions
Scientific name: Reticulitermes lucifugus
Name: Algerian Wasp
Order: Hymenoptera
Habitat: Mediterranean Regions
Scientific name: Polistes gallicus
Name: Algerian Wood Ant
Order: Hymenoptera
Habitat: Mediterranean Forests
Scientific name: Formica algira
Name: Allegheny Spider Beetle
Order: Coleoptera
Habitat: Hardwood forests
Scientific name: Mezium americanum
Name: Alligator Flea
Order: Siphonaptera
Habitat: Southeast United States
Scientific name: Echidnophaga gallinacea
Name: Alligator Moth
Order: Lepidoptera
Habitat: East Asia
Scientific name: Hyperaeschra
Name: Allopatric Ant
Order: Hymenoptera
Habitat: Tropical Forests
Scientific name: Camponotus allopatricius
Name: Almond Moth
Order: Lepidoptera
Habitat: Worldwide
Scientific name: Cadra cautella
Name: Alpine Ant
Order: Hymenoptera
Habitat: Alpine Regions
Scientific name: Formica lugubris
Name: Alpine Bark Beetle
Order: Coleoptera
Habitat: Alpine Regions
Scientific name: Ips cembrae
Name: Alpine Brocade Moth
Order: Lepidoptera
Habitat: Alpine meadows
Scientific name: Lasionycta alpina
Name: Alpine Bumblebee
Order: Hymenoptera
Habitat: Alpine Regions
Scientific name: Bombus alpinus
Name: Alpine Ladybird Beetle
Order: Coleoptera
Habitat: Alpine Regions
Scientific name: Coccinella alpina
Name: Alpine Longhorn Beetle
Order: Coleoptera
Habitat: Alpine Regions
Scientific name: Rosalia alpina
Name: Alpine Scorpion
Order: Scorpiones
Habitat: Alpine Regions
Scientific name: Euscorpius germanus
Name: Alpine Stonefly
Order: Plecoptera
Habitat: Alpine Streams
Scientific name: Capnia spp.
Name: Alpine Tent Caterpillar Moth
Order: Lepidoptera
Habitat: Alpine Regions
Scientific name: Malacosoma californicum
Name: Alpine Wasp
Order: Hymenoptera
Habitat: Alpine Regions
Scientific name: Vespula austriaca
Name: Alternating Ant
Order: Hymenoptera
Habitat: Europe
Scientific name: Temnothorax alternans
Name: Alticine Flea Beetle
Order: Coleoptera
Habitat: Grasslands
Scientific name: Altica spp.
Name: Amazon Ant
Order: Hymenoptera
Habitat: South America
Scientific name: Polyergus
Name: Amazonian Giant Centipede
Order: Scolopendromorpha
Habitat: Tropical forests
Scientific name: Scolopendra gigantea
Name: Amber Ant
Order: Hymenoptera
Habitat: Worldwide
Scientific name: Succinaspis
Name: Amber Jewel Beetle
Order: Coleoptera
Habitat: Deciduous forests
Scientific name: Chrysochroa
Name: Ambrosia Beetle
Order: Coleoptera
Habitat: Deciduous forests
Scientific name: Xyleborus ferrugineus
Name: Ambrysus Aquatic Burrowing Bug
Order: Hemiptera
Habitat: Freshwater
Scientific name: Ambrysus
Name: American Ant
Order: Hymenoptera
Habitat: North America
Scientific name: Linepithema humile
Name: American Antlion
Order: Neuroptera
Habitat: Temperate Forests
Scientific name: Myrmeleon crudelis
Name: American Burying Beetle
Order: Coleoptera
Habitat: Grasslands
Scientific name: Nicrophorus americanus
Name: American Carrion Beetle
Order: Coleoptera
Habitat: North America
Scientific name: Necrophila americana
Name: American Cockroach
Order: Blattodea
Habitat: Worldwide
Scientific name: Periplaneta americana
Name: American Dagger Moth
Order: Lepidoptera
Habitat: Temperate Forests
Scientific name: Acronicta americana
Name: American Dog Tick
Order: Acari
Habitat: North America
Scientific name: Dermacentor variabilis
Name: American Dung Fly
Order: Diptera
Habitat: Grasslands
Scientific name: Scathophaga stercoraria
Name: American Elm Leaf Beetle
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Xanthogaleruca luteola
Name: American Eurydema Bug
Order: Hemiptera
Habitat: Temperate Forests
Scientific name: Eurydema ornatum
Name: American False Darkling Beetle
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Odontosphindus denticornis
Name: American Firefly
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Photinus pyralis
Name: American Green Beetle
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Anomala marginata
Name: American Ground Beetle
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Carabus coriaceus
Name: American Hornet
Order: Hymenoptera
Habitat: North America
Scientific name: Vespa maculata
Name: American Horse Fly
Order: Diptera
Habitat: Grasslands
Scientific name: Tabanus americanus
Name: American Lace Bug
Order: Hemiptera
Habitat: Temperate Forests
Scientific name: Corythuca arcuata
Name: American Larch Aphid
Order: Hemiptera
Habitat: Boreal Forests
Scientific name: Cinara laricis
Name: American Leaf Beetle
Order: Coleoptera
Habitat: North America
Scientific name: Galerucella nymphaeae
Name: American Locust
Order: Orthoptera
Habitat: Grasslands
Scientific name: Dissosteira carolina
Name: American Monarch Butterfly
Order: Lepidoptera
Habitat: Grasslands
Scientific name: Danaus plexippus
Name: American Praying Mantis
Order: Mantodea
Habitat: Temperate Forests
Scientific name: Stagmomantis carolina
Name: American Sawfly
Order: Hymenoptera
Habitat: Temperate Forests
Scientific name: Neodiprion lecontei
Name: American Spider Wasp
Order: Hymenoptera
Habitat: Temperate Forests
Scientific name: Pepsis formosa
Name: American Tent Caterpillar
Order: Lepidoptera
Habitat: North America
Scientific name: Malacosoma americanum
Name: American Tiger Moth
Order: Lepidoptera
Habitat: Temperate Forests
Scientific name: Arctia caja
Name: Amethyst Beetle
Order: Coleoptera
Habitat: Tropical Forests
Scientific name: Chrysina resplendens
Name: Ammon's Ant
Order: Hymenoptera
Habitat: Deserts
Scientific name: Messor ammon
Name: Ammon's Longhorn Beetle
Order: Coleoptera
Habitat: Deciduous forests
Scientific name: Ammonius
Name: Amorpha Borer Moth
Order: Lepidoptera
Habitat: Deciduous forests
Scientific name: Paranthrene
Name: Amphinemura Winter Stonefly
Order: Plecoptera
Habitat: Streams
Scientific name: Amphinemura
Name: Amphion Moth
Order: Lepidoptera
Habitat: North America
Scientific name: Amphion floridensis
Name: Amputabranchius Crustacean
Order: Malacostraca
Habitat: Freshwater
Scientific name: Amputabranchius
Name: Amur Leopard Moth
Order: Lepidoptera
Habitat: Temperate Forests
Scientific name: Hepialus humuli
Name: Amur Tiger Beetle
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Cicindela amurensis
Name: Amur Wasp
Order: Hymenoptera
Habitat: Temperate Forests
Scientific name: Vespula flaviceps
Name: Anagyrus Wasp
Order: Hymenoptera
Habitat: Worldwide
Scientific name: Anagyrus
Name: Anama Moth
Order: Lepidoptera
Habitat: South America
Scientific name: Anama
Name: Anaulacomera Katydid
Order: Orthoptera
Habitat: South America
Scientific name: Anaulacomera
Name: Anax Dragonfly
Order: Odonata
Habitat: Wetlands
Scientific name: Anax spp.
Name: Anchor Bug
Order: Hemiptera
Habitat: Grasslands
Scientific name: Ancyrosoma leucogrammes
Name: Anchor Moth
Order: Lepidoptera
Habitat: Temperate Forests
Scientific name: Biston betularia
Name: Anchor Spider
Order: Araneae
Habitat: Grasslands
Scientific name: Nuctenea umbratica
Name: Anchor Stonefly
Order: Plecoptera
Habitat: Temperate Streams
Scientific name: Isogenoides olivaceus
Name: Andalusian Beetle
Order: Coleoptera
Habitat: Mediterranean Regions
Scientific name: Iberodorcadion fuliginator
Name: Andalusian Dagger Moth
Order: Lepidoptera
Habitat: Mediterranean regions
Scientific name: Acronicta andalusica
Name: Andalusian White Ant
Order: Isoptera
Habitat: Mediterranean Regions
Scientific name: Kalotermes flavicollis
Name: Andean Ant
Order: Hymenoptera
Habitat: Andes Mountains
Scientific name: Atta laevigata
Name: Andean Bronze Butterfly
Order: Lepidoptera
Habitat: High Andes
Scientific name: Stichelia buenavista
Name: Andean Bumblebee
Order: Hymenoptera
Habitat: Andes Mountains
Scientific name: Bombus funebris
Name: Andean Crab Spider
Order: Araneae
Habitat: Andes Mountains
Scientific name: Misumenops spp.
Name: Andean Darkling Beetle
Order: Coleoptera
Habitat: Andes Mountains
Scientific name: Praocis spp.
Name: Andean Giant Moth
Order: Lepidoptera
Habitat: Andes Mountains
Scientific name: Thysania agrippina
Name: Andean Giant Snail
Order: Gastropoda
Habitat: Andes Mountains
Scientific name: Megalobulimus spp.
Name: Andean Highlandfly
Order: Diptera
Habitat: Andes Mountains
Scientific name: Andinocarpa spp.
Name: Andean Horned Beetle
Order: Coleoptera
Habitat: Andes Mountains
Scientific name: Dynastes hercules
Name: Andean Leaf Beetle
Order: Coleoptera
Habitat: Andes Mountains
Scientific name: Diabrotica speciosa
Name: Andean Longhorn Beetle
Order: Coleoptera
Habitat: Andes Mountains
Scientific name: Callipogon barbatus
Name: Andean Moth
Order: Lepidoptera
Habitat: Andes Mountains
Scientific name: Castnia spp.
Name: Andean Scorpion
Order: Scorpiones
Habitat: Andes Mountains
Scientific name: Tityus spp.
Name: Andean Spider
Order: Araneae
Habitat: Andes Mountains
Scientific name: Parawixia spp.
Name: Andean Stink Bug
Order: Hemiptera
Habitat: Andes Mountains
Scientific name: Arvelius albopunctatus
Name: Andean Termite
Order: Isoptera
Habitat: Andes Mountains
Scientific name: Cornitermes spp.
Name: Andean Wasp
Order: Hymenoptera
Habitat: Andes Mountains
Scientific name: Polybia sericea
Name: Anetia Nymph Butterfly
Order: Lepidoptera
Habitat: Tropical forests
Scientific name: Anetia briarea
Name: Anglerfish Sea Louse
Order: Crustacea
Habitat: Worldwide
Scientific name: Aegidae
Name: Angulate Ant
Order: Hymenoptera
Habitat: Australia
Scientific name: Myrmecia angulata
Name: Angulate Ant Lion
Order: Neuroptera
Habitat: Deserts
Scientific name: Myrmeleon frontalis
Name: Angulate Pillbug
Order: Isopoda
Habitat: Caves
Scientific name: Armadillidiidae
Name: Anhang Moth
Order: Lepidoptera
Habitat: Asia
Scientific name: Anhang
Name: Anise Swallowtail
Order: Lepidoptera
Habitat: Temperate Forests
Scientific name: Papilio zelicaon
Name: Anochetus Trap-jaw Ant
Order: Hymenoptera
Habitat: Tropical forests
Scientific name: Anochetus
Name: Anomala Beetle
Order: Coleoptera
Habitat: Deciduous forests
Scientific name: Anomala
Name: Ant Beetle
Order: Coleoptera
Habitat: Worldwide
Scientific name: Scydmaenidae
Name: Ant Fly
Order: Diptera
Habitat: Temperate Forests
Scientific name: Microdon spp.
Name: Ant Lion
Order: Neuroptera
Habitat: Worldwide
Scientific name: Myrmeleontidae
Name: Ant Mimic Moth
Order: Lepidoptera
Habitat: Temperate Forests
Scientific name: Glyphodes sibillalis
Name: Ant Oriole
Order: Aves
Habitat: Tropical Forests
Scientific name: Icterus cayanensis
Name: Ant Slug
Order: Gastropoda
Habitat: Bermuda
Scientific name: Succinea bermudensis
Name: Ant Spider
Order: Araneae
Habitat: Worldwide
Scientific name: Zodariidae
Name: Ant Weevil
Order: Coleoptera
Habitat: Worldwide
Scientific name: Phloeobius
Name: Ant-Loving Spider
Order: Araneae
Habitat: Forests
Scientific name: Zodariidae
Name: Ant-loving Beetle
Order: Coleoptera
Habitat: Grasslands
Scientific name: Microbolbitus spp.
Name: Ant-loving Bug
Order: Hemiptera
Habitat: Temperate Forests
Scientific name: Myrmecophyes spp.
Name: Ant-loving Butterfly
Order: Lepidoptera
Habitat: Tropical Forests
Scientific name: Hypolycaena erylus
Name: Ant-loving Fly
Order: Diptera
Habitat: Temperate Forests
Scientific name: Phoridae spp.
Name: Ant-loving Spider
Order: Araneae
Habitat: Tropical Forests
Scientific name: Myrmecicultor spp.
Name: Ant-loving Wasp
Order: Hymenoptera
Habitat: Temperate Forests
Scientific name: Trichopria spp.
Name: Ant-nest Beetle
Order: Coleoptera
Habitat: Temperate Forests
Scientific name: Batrisodes spp.
Name: Ant-nest Fly
Order: Diptera
Habitat: Temperate Forests
Scientific name: Lestremia spp.
Name: Ant-nest Moth
Order: Lepidoptera
Habitat: Temperate Forests
Scientific name: Monopis spp.
Name: Ant-nest Spider
Order: Araneae
Habitat: Temperate Forests
Scientific name: Synageles spp.
Name: Antelope Beetle
Order: Coleoptera
Habitat: North America
Scientific name: Nathrius brevipennis
Name: Anthrax Fly
Order: Diptera
Habitat: Grasslands
Scientific name: Anthrax spp.
Name: Anthribus Weevil
Order: Coleoptera
Habitat: Worldwide
Scientific name: Anthribidae
Name: Antillean Giant Cockroach
Order: Blattodea
Habitat: Caribbean islands
Scientific name: Blaberus giganteus
Name: Antlion
Order: Neuroptera
Habitat: Worldwide
Scientific name: Myrmeleontidae
Name: Anvil Beetle
Order: Coleoptera
Habitat: Worldwide
Scientific name: Bruchus
Name: Aonidia Scale
Order: Hemiptera
Habitat: Worldwide
Scientific name: Aonidia
Name: Aosta Valley Ground Beetle
Order: Coleoptera
Habitat: Alpine meadows
Scientific name: Carabus olympiae
Name: Apache Moth
Order: Lepidoptera
Habitat: North America
Scientific name: Eacles imperialis
Name: Aphid
Order: Hemiptera
Habitat: Plants
Scientific name: Aphidoidea
Name: Aphid Fly
Order: Diptera
Habitat: Worldwide
Scientific name: Syrphidae
Name: Aphid Lion
Order: Neuroptera
Habitat: Worldwide
Scientific name: Chrysopidae
Name: Aphidius Wasp
Order: Hymenoptera
Habitat: Worldwide
Scientific name: Aphidius
Name: Aphodian Dung Beetle
Order: Coleoptera
Habitat: Worldwide
Scientific name: Aphodius
Name: Aphodiine Dung Beetle
Order: Coleoptera
Habitat: Worldwide
Scientific name: Aphodiinae
Name: Aphorura Springtail
Order: Collembola
Habitat: Worldwide
Scientific name: Aphorura
Name: Apple Brown Bug
Order: Hemiptera
Habitat: Worldwide
Scientific name: Leptocoris trivittatus
Name: Apple Grain Aphid
Order: Hemiptera
Habitat: Worldwide
Scientific name: Rhopalosiphum fitchii
Name: Appleseed Ant
Order: Hymenoptera
Habitat: North America
Scientific name: Aphaenogaster
Name: Arabian Horse Fly
Order: Diptera
Habitat: Middle East
Scientific name: Tabanus
Name: Arboreal Ant
Order: Hymenoptera
Habitat: Worldwide
Scientific name: Lasius
Name: Arctiid Moth
Order: Lepidoptera
Habitat: Worldwide
Scientific name: Arctiidae
Name: Ardisia Ant
Order: Hymenoptera
Habitat: Asia
Scientific name: Aenictus
Name: Argentinian Ant
Order: Hymenoptera
Habitat: South America
Scientific name: Linepithema humile
Name: Arizona Bark Scorpion
Order: Scorpiones
Habitat: Southwest United States
Scientific name: Centruroides sculpturatus
Name: Arizona Beetle
Order: Coleoptera
Habitat: Southwest United States
Scientific name: Platynus
Name: Arizona Giant Bark Scorpion
Order: Scorpiones
Habitat: Southwest United States
Scientific name: Hadrurus arizonensis
Name: Armored Moth
Order: Lepidoptera
Habitat: Europe
Scientific name: Acanthopsyche
Name: Ash Sawfly
Order: Hymenoptera
Habitat: Europe
Scientific name: Tomostethus
Name: Ashen Ant
Order: Hymenoptera
Habitat: Europe
Scientific name: Formica cinerea
Name: Asian Citrus Psyllid
Order: Hemiptera
Habitat: Asia
Scientific name: Diaphorina citri
Name: Asian Elephant Louse
Order: Phthiraptera
Habitat: Asia
Scientific name: Haematomyzus elephantis
Name: Asian Longhorned Beetle
Order: Coleoptera
Habitat: Asia
Scientific name: Anoplophora glabripennis
Name: Asiatic Garden Beetle
Order: Coleoptera
Habitat: Asia
Scientific name: Maladera castanea
Name: Athous Beetle
Order: Coleoptera
Habitat: Europe
Scientific name: Athous
Name: Atlas Moth
Order: Lepidoptera
Habitat: Asia
Scientific name: Attacus atlas
Name: Atropos Ant
Order: Hymenoptera
Habitat: South America
Scientific name: Atropos
Name: Augochlora Sweat Bee
Order: Hymenoptera
Habitat: North and South America
Scientific name: Augochlora
Name: Australian Ant
Order: Hymenoptera
Habitat: Australia
Scientific name: Linepithema humile
Name: Australian Beetle
Order: Coleoptera
Habitat: Australia
Scientific name: Cisseis
Name: Australian Longhorn Beetle
Order: Coleoptera
Habitat: Australia
Scientific name: Agrilus
Name: Australian Termite
Order: Blattodea
Habitat: Australia
Scientific name: Mastotermes darwiniensis
Name: Autumn Ant
Order: Hymenoptera
Habitat: Holarctic
Scientific name: Formica
Name: Autumn Leaf Beetle
Order: Coleoptera
Habitat: North America
Scientific name: Pachybrachis
Name: Aviator Ant
Order: Hymenoptera
Habitat: Asia
Scientific name: Aenictus
Name: Azalea Lace Bug
Order: Hemiptera
Habitat: North America
Scientific name: Stephanitis pyrioides
| Name | Order | Habitat | Scientific name |
|---|---|---|---|
| Aardwolf | Hymenoptera | Worldwide | Aenictus |
| Abax Beetle | Coleoptera | Europe | Abax |
| Abdomen Ant | Hymenoptera | Tropical Forests | Anochetus abditus |
| Abeille's Ant | Hymenoptera | Africa | Tapinoma beilleanum |
| Aberrant Ant | Hymenoptera | Tropical Forests | Cephalotes aberrans |
| Acalles Weevil | Coleoptera | Forest | Acalles spp. |
| Acanthocephalan Beetle | Coleoptera | Aquatic | Acanthocephala spp. |
| Acanthocinus Beetle | Coleoptera | Woodlands | Acanthocinus aedilis |
| Acanthomera Fly | Diptera | Forests | Acanthomera sp. |
| Acanthomyops Ant | Hymenoptera | Forests | Acanthomyops |
| Acanthophorus Beetle | Coleoptera | Forest | Acanthophorus spp. |
| Acanthoplus Katydid | Orthoptera | Grasslands | Acanthoplus |
| Acanthoscelides Seed Beetle | Coleoptera | Grassland | Acanthoscelides spp. |
| Acanthosphinx Moth | Lepidoptera | Tropical Forests | Acanthosphinx gorgoniades |
| Acarid Mite | Acari | Soil | Acaridae spp. |
| Acarina Tick | Acari | Grasslands | Acarina sp. |
| Acartia Copepod | Copepoda | Marine | Acartia spp. |
| Accentor Moth | Lepidoptera | Woodland | Accentuaria spp. |
| Accessary Ant | Hymenoptera | Forest | Acropyga spp. |
| Acenopterus Weevil | Coleoptera | Forest | Acenopterus spp. |
| Acentria Moth | Lepidoptera | Aquatic | Acentria ephemerella |
| Achaearanea Spider | Araneae | Varied | Achaearanea |
| Achalcus Fly | Diptera | Woodland | Achalcus spp. |
| Achorutes Springtail | Collembola | Soil | Achorutes spp. |
| Acizzia Jumping Plant Louse | Hemiptera | Woodlands | Acizzia sp. |
| Acmaeodera Jewel Beetle | Coleoptera | Deserts | Acmaeodera sp. |
| Aconitum Beetle | Coleoptera | Temperate Forests | Aconitum sp. |
| Acorn Moth | Lepidoptera | Oak Forests | Valentinia glandulella |
| Acorn Plume Moth | Lepidoptera | Oak Forests | Platyptilia carduidactyla |
| Acorn Weevil | Coleoptera | Northern Hemisphere | Curculio |
| Acraea Butterfly | Lepidoptera | Africa | Acraea |
| Acridotheres Starling | Coleoptera | Urban Areas | Acridotheres sp. |
| Actias Silk Moth | Lepidoptera | Temperate Forests | Actias sp. |
| Adder Fly | Neuroptera | Worldwide | Raphidioptera |
| Adder's-tongue Beetle | Coleoptera | Grasslands | Languria mozardi |
| Adelges Woolly Adelgid | Hemiptera | Forests | Adelges sp. |
| Adelpha Butterfly | Lepidoptera | Tropical forests | Adelpha |
| Adirondack Ant | Hymenoptera | Temperate Forests | Formica adirondackensis |
| Adonis Blue Butterfly | Lepidoptera | Grasslands | Lysandra bellargus |
| Adriatic Hornet | Hymenoptera | Coastal Regions | Vespa crabro |
| Aedes Mosquito | Diptera | Wetlands | Aedes sp. |
| Aegean Longhorn Beetle | Coleoptera | Mediterranean Forests | Aegosoma scabricorne |
| Aegean Scorpion | Scorpiones | Mediterranean Regions | Mesobuthus gibbosus |
| Aehrenholtz's Longhorn Beetle | Coleoptera | Deciduous forests | Aehrenholtzius |
| Aelurillus Jumping Spider | Araneae | Grasslands | Aelurillus sp. |
| Aesalus Stag Beetle | Coleoptera | Deciduous forests | Aesalus |
| Aeschnophlebia Dragonfly | Odonata | Freshwater | Aeschnophlebia sp. |
| Aesculapian Ant | Hymenoptera | Deciduous forests | Messor aesculapii |
| Aesculapian Snake-fly | Neuroptera | Temperate Forests | Raphidia ophiopsis |
| Aesopia Sole | Pleuronectiformes | Marine | Aesopia sp. |
| Aethaloptera Caddisfly | Trichoptera | Freshwater | Aethaloptera sp. |
| Aetna Beetle | Coleoptera | Deserts | Aetna sp. |
| African Armyworm Moth | Lepidoptera | Grasslands | Spodoptera exempta |
| African Bat Bug | Hemiptera | Caves | Cacodmus invictus |
| African Beetle | Coleoptera | Savanna | Goliathus spp. |
| African Dragonfly | Odonata | Wetlands | Aethriamanta spp. |
| African Dung Beetle | Coleoptera | Savanna | Onthophagus spp. |
| African Fig Fly | Diptera | Tropical forests | Ceratitis capitata |
| African Giant Cockroach | Blattodea | Tropical Forests | Macropanesthia rhinoceros |
| African Giant Snail | Gastropoda | Tropical Forests | Achatina fulica |
| African Honey Bee | Hymenoptera | Savanna | Apis mellifera scutellata |
| African Palm Weevil | Coleoptera | Palm plantations | Rhynchophorus phoenicis |
| African Praying Mantis | Mantodea | Savanna | Sphodromantis spp. |
| African Rhinoceros Beetle | Coleoptera | Savanna | Oryctes monoceros |
| African Scorpion | Scorpiones | Savanna | Pandinus imperator |
| African Spider | Araneae | Savanna | Nephila spp. |
| African Stink Bug | Hemiptera | Savanna | Macrorhaphis acuta |
| African Termite | Isoptera | Savanna | Macrotermes spp. |
| African Tiger Moth | Lepidoptera | Savanna | Amata spp. |
| African Tree Frog | Anura | Tropical Forests | Leptopelis spp. |
| Afrotropic Ant | Hymenoptera | Tropical Forests | Dorylus spp. |
| Agabus Crawling Water Beetle | Coleoptera | Freshwater | Agabus sp. |
| Agama Beetle | Coleoptera | Desert | Anthicus agama |
| Aganippe Spider | Araneae | Arid regions | Aganippe |
| Agaric Fungus Gnat | Diptera | Temperate Forests | Mycetophila spp. |
| Agate Snail | Gastropoda | North America | Succineidae |
| Agathidium Round Fungus Beetle | Coleoptera | Forests | Agathidium |
| Agave Snout Weevil | Coleoptera | Deserts | Scyphophorus acupunctatus |
| Agdistis Moth | Lepidoptera | Worldwide | Agdistidae |
| Agelastica Leaf Beetle | Coleoptera | Forests | Agelastica sp. |
| Agelena Spider | Araneae | Grasslands | Agelena sp. |
| Aggressive Ant | Hymenoptera | Tropical Forests | Odontomachus spp. |
| Aggressive Wasp | Hymenoptera | Temperate Regions | Vespula spp. |
| Agile Ant | Hymenoptera | Worldwide | Linepithema humile |
| Agile Ground Beetle | Coleoptera | Temperate Forests | Calathus spp. |
| Aglia Moth | Lepidoptera | Temperate forests | Aglia tau |
| Agonum Ground Beetle | Coleoptera | Forests | Agonum sp. |
| Agriades Butterfly | Lepidoptera | Holarctic | Agriades |
| Agrilus Jewel Beetle | Coleoptera | Forests | Agrilus sp. |
| Agrion Damselfly | Odonata | Wetlands | Calopteryx spp. |
| Agriotes Click Beetle | Coleoptera | Grasslands | Agriotes sp. |
| Agrius Hawk Moth | Lepidoptera | Worldwide | Agrius |
| Agroiconota Leaf Beetle | Coleoptera | Tropical forests | Agroiconota |
| Ah-tah Ant | Hymenoptera | Tropical Forests | Azteca spp. |
| Ahasverus Beetle | Coleoptera | Worldwide | Ahasverus |
| Aibonito Giant Spider | Araneae | Tropical Forests | Thrixopelma ockerti |
| Aides Ant | Hymenoptera | South America | Aides |
| Ailanthus Webworm Moth | Lepidoptera | Eastern North America | Atteva aurea |
| Aizo Ant | Hymenoptera | Tropical Forests | Camponotus aizo |
| Ajanthura Isopod | Isopoda | Marine | Ajanthura sp. |
| Akbar's Swallowtail Butterfly | Lepidoptera | Tropical forests | Atrophaneura akbar |
| Akbès Ant | Hymenoptera | Temperate Forests | Formica akbesiana |
| Alabama Bark Beetle | Coleoptera | Temperate Forests | Ips avulsus |
| Alaptus Fairyfly | Hymenoptera | Forests | Alaptus sp. |
| Alaska Birchleaf Aphid | Hemiptera | Boreal Forests | Euceraphis betulae |
| Alaska Bumblebee | Hymenoptera | Tundra | Bombus polaris |
| Alaska Dart Moth | Lepidoptera | Tundra | Xestia alaskae |
| Alaska Firefly | Coleoptera | Temperate Forests | Ellychnia corrusca |
| Alaska Giant Ichneumon Wasp | Hymenoptera | Boreal Forests | Megarhyssa macrurus |
| Alaska Ground Beetle | Coleoptera | Tundra | Pterostichus spp. |
| Alaska Mouse Beetle | Coleoptera | Tundra | Catops spp. |
| Alaska Pomace Fly | Diptera | Tundra | Drosophila alaskensis |
| Alaska Ringlet Butterfly | Lepidoptera | Tundra | Coenonympha kodiak |
| Alaska Rose Slug | Hymenoptera | Temperate Forests | Arge rosae |
| Alaska Sailfin Moth | Lepidoptera | Boreal Forests | Pterophorus monodactyla |
| Alaska Shore Fly | Diptera | Coastal Regions | Ephydra spp. |
| Alaska Stonefly | Plecoptera | Streams | Megaleuctra spp. |
| Alaskan Ant | Hymenoptera | Tundra | Linepithema humile |
| Alaskan Bark Beetle | Coleoptera | Boreal Forests | Ips perturbatus |
| Alaskan Beetle | Coleoptera | Tundra | Pterostichus brevicornis |
| Alaskan Brook Stickleback | Actinopterygii | Streams | Culaea inconstans |
| Alaskan Centipede | Chilopoda | Tundra | Scolopocryptops spp. |
| Alaskan Crane Fly | Diptera | Tundra | Tipula spp. |
| Alaskan Diving Beetle | Coleoptera | Freshwater | Acilius spp. |
| Alaskan Dragonfly | Odonata | Wetlands | Leucorrhinia hudsonica |
| Alaskan Leaf Beetle | Coleoptera | Boreal Forests | Chrysomela spp. |
| Alaskan Mosquito | Diptera | Tundra | Aedes punctor |
| Alaskan Musk Ox Fly | Diptera | Tundra | Hypoderma tarandi |
| Alaskan Sawfly | Hymenoptera | Boreal Forests | Pikonema alaskensis |
| Alaskan Stag Beetle | Coleoptera | Boreal Forests | Sinodendron rugosum |
| Alaskan Wasp | Hymenoptera | Tundra | Dolichovespula arenaria |
| Alauda Ant | Hymenoptera | Grasslands | Anoplolepis alauda |
| Alaus Beetle | Coleoptera | Deciduous forests | Alaus |
| Alaus Click Beetle | Coleoptera | Forests | Alaus sp. |
| Albanese Leaf Beetle | Coleoptera | Mediterranean regions | Albanese |
| Albertine Rift Butterfly | Lepidoptera | Tropical forests | Cymothoe alberthis |
| Albino Ant | Hymenoptera | Tropical Forests | Atta cephalotes |
| Alcon Blue Butterfly | Lepidoptera | Grasslands | Phengaris alcon |
| Alder Beetle | Coleoptera | Europe | Agelastica alni |
| Alder Flea Weevil | Coleoptera | Europe | Orchestes fagi |
| Alder Leaf Beetle | Coleoptera | Europe | Agelastica alni |
| Alder Sawfly | Hymenoptera | Europe | Arge pullata |
| Alder Slug | Gastropoda | Europe | Leidyula |
| Alder Snout Moth | Lepidoptera | Europe | Potamia |
| Alderfly | Megaloptera | Temperate Forests | Sialis spp. |
| Aldrovanda Moth | Lepidoptera | Wetlands | Parapoynx stratiotata |
| Aleochara Rove Beetle | Coleoptera | Grasslands | Aleochara sp. |
| Alepocharina Caddisfly | Trichoptera | Freshwater | Alepocharina sp. |
| Aleppo Bug | Hemiptera | Arid regions | Apodiphus amygdali |
| Aleutian Ant | Hymenoptera | Tundra | Lasius alaskensis |
| Aleutian Dragonfly | Odonata | Wetlands | Somatochlora sahlbergi |
| Aleutian House Centipede | Chilopoda | Tundra | Lithobius spp. |
| Alfalfa Ant | Hymenoptera | Grasslands | Formica xerophila |
| Alfalfa Aphid | Hemiptera | Worldwide | Therioaphis trifolii |
| Alfalfa Butterfly | Lepidoptera | North America | Colias eurytheme |
| Alfalfa Weevil | Coleoptera | Worldwide | Hypera postica |
| Alfken's Bee | Hymenoptera | Grasslands | Andrena alfkenella |
| Algae Ant | Hymenoptera | Tropical Forests | Azteca alfari |
| Algerian Fire Ant | Hymenoptera | Mediterranean Regions | Messor barbara |
| Algerian Ground Beetle | Coleoptera | Mediterranean Regions | Carabus coriaceus |
| Algerian Praying Mantis | Mantodea | Mediterranean Regions | Iris oratoria |
| Algerian Scorpion | Scorpiones | Mediterranean Regions | Buthus occitanus |
| Algerian Termite | Isoptera | Mediterranean Regions | Reticulitermes lucifugus |
| Algerian Wasp | Hymenoptera | Mediterranean Regions | Polistes gallicus |
| Algerian Wood Ant | Hymenoptera | Mediterranean Forests | Formica algira |
| Allegheny Spider Beetle | Coleoptera | Hardwood forests | Mezium americanum |
| Alligator Flea | Siphonaptera | Southeast United States | Echidnophaga gallinacea |
| Alligator Moth | Lepidoptera | East Asia | Hyperaeschra |
| Allopatric Ant | Hymenoptera | Tropical Forests | Camponotus allopatricius |
| Almond Moth | Lepidoptera | Worldwide | Cadra cautella |
| Alpine Ant | Hymenoptera | Alpine Regions | Formica lugubris |
| Alpine Bark Beetle | Coleoptera | Alpine Regions | Ips cembrae |
| Alpine Brocade Moth | Lepidoptera | Alpine meadows | Lasionycta alpina |
| Alpine Bumblebee | Hymenoptera | Alpine Regions | Bombus alpinus |
| Alpine Ladybird Beetle | Coleoptera | Alpine Regions | Coccinella alpina |
| Alpine Longhorn Beetle | Coleoptera | Alpine Regions | Rosalia alpina |
| Alpine Scorpion | Scorpiones | Alpine Regions | Euscorpius germanus |
| Alpine Stonefly | Plecoptera | Alpine Streams | Capnia spp. |
| Alpine Tent Caterpillar Moth | Lepidoptera | Alpine Regions | Malacosoma californicum |
| Alpine Wasp | Hymenoptera | Alpine Regions | Vespula austriaca |
| Alternating Ant | Hymenoptera | Europe | Temnothorax alternans |
| Alticine Flea Beetle | Coleoptera | Grasslands | Altica spp. |
| Amazon Ant | Hymenoptera | South America | Polyergus |
| Amazonian Giant Centipede | Scolopendromorpha | Tropical forests | Scolopendra gigantea |
| Amber Ant | Hymenoptera | Worldwide | Succinaspis |
| Amber Jewel Beetle | Coleoptera | Deciduous forests | Chrysochroa |
| Ambrosia Beetle | Coleoptera | Deciduous forests | Xyleborus ferrugineus |
| Ambrysus Aquatic Burrowing Bug | Hemiptera | Freshwater | Ambrysus |
| American Ant | Hymenoptera | North America | Linepithema humile |
| American Antlion | Neuroptera | Temperate Forests | Myrmeleon crudelis |
| American Burying Beetle | Coleoptera | Grasslands | Nicrophorus americanus |
| American Carrion Beetle | Coleoptera | North America | Necrophila americana |
| American Cockroach | Blattodea | Worldwide | Periplaneta americana |
| American Dagger Moth | Lepidoptera | Temperate Forests | Acronicta americana |
| American Dog Tick | Acari | North America | Dermacentor variabilis |
| American Dung Fly | Diptera | Grasslands | Scathophaga stercoraria |
| American Elm Leaf Beetle | Coleoptera | Temperate Forests | Xanthogaleruca luteola |
| American Eurydema Bug | Hemiptera | Temperate Forests | Eurydema ornatum |
| American False Darkling Beetle | Coleoptera | Temperate Forests | Odontosphindus denticornis |
| American Firefly | Coleoptera | Temperate Forests | Photinus pyralis |
| American Green Beetle | Coleoptera | Temperate Forests | Anomala marginata |
| American Ground Beetle | Coleoptera | Temperate Forests | Carabus coriaceus |
| American Hornet | Hymenoptera | North America | Vespa maculata |
| American Horse Fly | Diptera | Grasslands | Tabanus americanus |
| American Lace Bug | Hemiptera | Temperate Forests | Corythuca arcuata |
| American Larch Aphid | Hemiptera | Boreal Forests | Cinara laricis |
| American Leaf Beetle | Coleoptera | North America | Galerucella nymphaeae |
| American Locust | Orthoptera | Grasslands | Dissosteira carolina |
| American Monarch Butterfly | Lepidoptera | Grasslands | Danaus plexippus |
| American Praying Mantis | Mantodea | Temperate Forests | Stagmomantis carolina |
| American Sawfly | Hymenoptera | Temperate Forests | Neodiprion lecontei |
| American Spider Wasp | Hymenoptera | Temperate Forests | Pepsis formosa |
| American Tent Caterpillar | Lepidoptera | North America | Malacosoma americanum |
| American Tiger Moth | Lepidoptera | Temperate Forests | Arctia caja |
| Amethyst Beetle | Coleoptera | Tropical Forests | Chrysina resplendens |
| Ammon's Ant | Hymenoptera | Deserts | Messor ammon |
| Ammon's Longhorn Beetle | Coleoptera | Deciduous forests | Ammonius |
| Amorpha Borer Moth | Lepidoptera | Deciduous forests | Paranthrene |
| Amphinemura Winter Stonefly | Plecoptera | Streams | Amphinemura |
| Amphion Moth | Lepidoptera | North America | Amphion floridensis |
| Amputabranchius Crustacean | Malacostraca | Freshwater | Amputabranchius |
| Amur Leopard Moth | Lepidoptera | Temperate Forests | Hepialus humuli |
| Amur Tiger Beetle | Coleoptera | Temperate Forests | Cicindela amurensis |
| Amur Wasp | Hymenoptera | Temperate Forests | Vespula flaviceps |
| Anagyrus Wasp | Hymenoptera | Worldwide | Anagyrus |
| Anama Moth | Lepidoptera | South America | Anama |
| Anaulacomera Katydid | Orthoptera | South America | Anaulacomera |
| Anax Dragonfly | Odonata | Wetlands | Anax spp. |
| Anchor Bug | Hemiptera | Grasslands | Ancyrosoma leucogrammes |
| Anchor Moth | Lepidoptera | Temperate Forests | Biston betularia |
| Anchor Spider | Araneae | Grasslands | Nuctenea umbratica |
| Anchor Stonefly | Plecoptera | Temperate Streams | Isogenoides olivaceus |
| Andalusian Beetle | Coleoptera | Mediterranean Regions | Iberodorcadion fuliginator |
| Andalusian Dagger Moth | Lepidoptera | Mediterranean regions | Acronicta andalusica |
| Andalusian White Ant | Isoptera | Mediterranean Regions | Kalotermes flavicollis |
| Andean Ant | Hymenoptera | Andes Mountains | Atta laevigata |
| Andean Bronze Butterfly | Lepidoptera | High Andes | Stichelia buenavista |
| Andean Bumblebee | Hymenoptera | Andes Mountains | Bombus funebris |
| Andean Crab Spider | Araneae | Andes Mountains | Misumenops spp. |
| Andean Darkling Beetle | Coleoptera | Andes Mountains | Praocis spp. |
| Andean Giant Moth | Lepidoptera | Andes Mountains | Thysania agrippina |
| Andean Giant Snail | Gastropoda | Andes Mountains | Megalobulimus spp. |
| Andean Highlandfly | Diptera | Andes Mountains | Andinocarpa spp. |
| Andean Horned Beetle | Coleoptera | Andes Mountains | Dynastes hercules |
| Andean Leaf Beetle | Coleoptera | Andes Mountains | Diabrotica speciosa |
| Andean Longhorn Beetle | Coleoptera | Andes Mountains | Callipogon barbatus |
| Andean Moth | Lepidoptera | Andes Mountains | Castnia spp. |
| Andean Scorpion | Scorpiones | Andes Mountains | Tityus spp. |
| Andean Spider | Araneae | Andes Mountains | Parawixia spp. |
| Andean Stink Bug | Hemiptera | Andes Mountains | Arvelius albopunctatus |
| Andean Termite | Isoptera | Andes Mountains | Cornitermes spp. |
| Andean Wasp | Hymenoptera | Andes Mountains | Polybia sericea |
| Anetia Nymph Butterfly | Lepidoptera | Tropical forests | Anetia briarea |
| Anglerfish Sea Louse | Crustacea | Worldwide | Aegidae |
| Angulate Ant | Hymenoptera | Australia | Myrmecia angulata |
| Angulate Ant Lion | Neuroptera | Deserts | Myrmeleon frontalis |
| Angulate Pillbug | Isopoda | Caves | Armadillidiidae |
| Anhang Moth | Lepidoptera | Asia | Anhang |
| Anise Swallowtail | Lepidoptera | Temperate Forests | Papilio zelicaon |
| Anochetus Trap-jaw Ant | Hymenoptera | Tropical forests | Anochetus |
| Anomala Beetle | Coleoptera | Deciduous forests | Anomala |
| Ant Beetle | Coleoptera | Worldwide | Scydmaenidae |
| Ant Fly | Diptera | Temperate Forests | Microdon spp. |
| Ant Lion | Neuroptera | Worldwide | Myrmeleontidae |
| Ant Mimic Moth | Lepidoptera | Temperate Forests | Glyphodes sibillalis |
| Ant Oriole | Aves | Tropical Forests | Icterus cayanensis |
| Ant Slug | Gastropoda | Bermuda | Succinea bermudensis |
| Ant Spider | Araneae | Worldwide | Zodariidae |
| Ant Weevil | Coleoptera | Worldwide | Phloeobius |
| Ant-Loving Spider | Araneae | Forests | Zodariidae |
| Ant-loving Beetle | Coleoptera | Grasslands | Microbolbitus spp. |
| Ant-loving Bug | Hemiptera | Temperate Forests | Myrmecophyes spp. |
| Ant-loving Butterfly | Lepidoptera | Tropical Forests | Hypolycaena erylus |
| Ant-loving Fly | Diptera | Temperate Forests | Phoridae spp. |
| Ant-loving Spider | Araneae | Tropical Forests | Myrmecicultor spp. |
| Ant-loving Wasp | Hymenoptera | Temperate Forests | Trichopria spp. |
| Ant-nest Beetle | Coleoptera | Temperate Forests | Batrisodes spp. |
| Ant-nest Fly | Diptera | Temperate Forests | Lestremia spp. |
| Ant-nest Moth | Lepidoptera | Temperate Forests | Monopis spp. |
| Ant-nest Spider | Araneae | Temperate Forests | Synageles spp. |
| Antelope Beetle | Coleoptera | North America | Nathrius brevipennis |
| Anthrax Fly | Diptera | Grasslands | Anthrax spp. |
| Anthribus Weevil | Coleoptera | Worldwide | Anthribidae |
| Antillean Giant Cockroach | Blattodea | Caribbean islands | Blaberus giganteus |
| Antlion | Neuroptera | Worldwide | Myrmeleontidae |
| Anvil Beetle | Coleoptera | Worldwide | Bruchus |
| Aonidia Scale | Hemiptera | Worldwide | Aonidia |
| Aosta Valley Ground Beetle | Coleoptera | Alpine meadows | Carabus olympiae |
| Apache Moth | Lepidoptera | North America | Eacles imperialis |
| Aphid | Hemiptera | Plants | Aphidoidea |
| Aphid Fly | Diptera | Worldwide | Syrphidae |
| Aphid Lion | Neuroptera | Worldwide | Chrysopidae |
| Aphidius Wasp | Hymenoptera | Worldwide | Aphidius |
| Aphodian Dung Beetle | Coleoptera | Worldwide | Aphodius |
| Aphodiine Dung Beetle | Coleoptera | Worldwide | Aphodiinae |
| Aphorura Springtail | Collembola | Worldwide | Aphorura |
| Apple Brown Bug | Hemiptera | Worldwide | Leptocoris trivittatus |
| Apple Grain Aphid | Hemiptera | Worldwide | Rhopalosiphum fitchii |
| Appleseed Ant | Hymenoptera | North America | Aphaenogaster |
| Arabian Horse Fly | Diptera | Middle East | Tabanus |
| Arboreal Ant | Hymenoptera | Worldwide | Lasius |
| Arctiid Moth | Lepidoptera | Worldwide | Arctiidae |
| Ardisia Ant | Hymenoptera | Asia | Aenictus |
| Argentinian Ant | Hymenoptera | South America | Linepithema humile |
| Arizona Bark Scorpion | Scorpiones | Southwest United States | Centruroides sculpturatus |
| Arizona Beetle | Coleoptera | Southwest United States | Platynus |
| Arizona Giant Bark Scorpion | Scorpiones | Southwest United States | Hadrurus arizonensis |
| Armored Moth | Lepidoptera | Europe | Acanthopsyche |
| Ash Sawfly | Hymenoptera | Europe | Tomostethus |
| Ashen Ant | Hymenoptera | Europe | Formica cinerea |
| Asian Citrus Psyllid | Hemiptera | Asia | Diaphorina citri |
| Asian Elephant Louse | Phthiraptera | Asia | Haematomyzus elephantis |
| Asian Longhorned Beetle | Coleoptera | Asia | Anoplophora glabripennis |
| Asiatic Garden Beetle | Coleoptera | Asia | Maladera castanea |
| Athous Beetle | Coleoptera | Europe | Athous |
| Atlas Moth | Lepidoptera | Asia | Attacus atlas |
| Atropos Ant | Hymenoptera | South America | Atropos |
| Augochlora Sweat Bee | Hymenoptera | North and South America | Augochlora |
| Australian Ant | Hymenoptera | Australia | Linepithema humile |
| Australian Beetle | Coleoptera | Australia | Cisseis |
| Australian Longhorn Beetle | Coleoptera | Australia | Agrilus |
| Australian Termite | Blattodea | Australia | Mastotermes darwiniensis |
| Autumn Ant | Hymenoptera | Holarctic | Formica |
| Autumn Leaf Beetle | Coleoptera | North America | Pachybrachis |
| Aviator Ant | Hymenoptera | Asia | Aenictus |
| Azalea Lace Bug | Hemiptera | North America | Stephanitis pyrioides |