Belgium

Anchor worm

Lernaea cyprinacea

Andromeda Lacebug

Stephanitis takeyai

Anemone Smut

Urocystis anemones

An Eyebright

Euphrasia tetraquetra

Angel's-tears

Narcissus triandrus

Angel's-wings

Opuntia microdasys

Angled pea

Lathyrus angulatus

Ankara Crocus

Crocus ancyrensis

Annual trampweed

Facelis retusa

Annual Valerian

Centranthus calcitrapae

Ant

Tetramorium insolens

Ant

Technomyrmex albipes

Ant

Strumigenys rogeri

Ant

Technomyrmex vitiensis

Ant

Tetramorium simillimum

Ant

Anergates atratulus

Ant

Tetramorium caldarium

Antarctic Barley

Hordeum pubiflorum

Anthostomella formosa

Anthostomella tomicoides

Antirrhinum Rust

Puccinia antirrhini

Antlike flower beetle

Omonadus formicarius

Antrodia sinuosa

Antrodiella onychoides

Antrodiella romellii

Antrodiella serpula

Anuran parasite

Lucilia bufonivora

Aphanomyces astaci

Aphid

Pterocomma salicis

Aphid

Macrosiphoniella tanacetaria

Aphid

Aphis rumicis

Aphid

Eucallipterus tiliae

Aphid

Cryptomyzus galeopsidis

Aphid

Tinocallis saltans

Aphid

Microlophium carnosum

Aphid

Pterocomma pilosum

Aphid

Pemphigus spyrothecae

Aphid

Myzocallis carpini

Aphid

Aphis ruborum

Aphid

Aphis genistae

Aphid

Chaitophorus populialbae

Aphid

Thecabius affinis

Aphid

Cinara confinis

Aphid Trap

Proboscidea louisianica

Apiognomonia errabunda

Apple Canker

Neonectria ditissima

Apple Capsid

Lygocoris rugicollis

Apple Leaf Miner

Lyonetia clerkella

Apple Marble

Eudemis porphyrana

Apple Pith Moth

Blastodacna atra

Arctic poppy

Papaver nudicaule

Arctic Rush

Juncus arcticus

Arcyria affinis

Arcyria ferruginea

Arcyria stipata

argali

Ovis ammon

Argentine ant

Linepithema humile

Argentine Barley

Hordeum euclaston

Australian Bur-grass

Tragus australianus

Australian Carrot

Daucus glochidiatus