Atesta stigmosa 
Athesis clearista 
Athesis vitrala 
Athetis nonagrica 
Athetis tenuis 
Athletes gigas 
Athous cucullatus 
Athous herbigradus 
Athous villiger 
Athyma kasa 
Athyma speciosa 
Atlantarctia tigrina 
Atlantic ghost crab 
Atlantic Grasshopper 
Atlantic Horseshoe Crab 
Atlantis fritillary 
Atlantoraphidia maculicollis 
Atlas beetle 
Atlas Moth 
Atomosia puella 
Atopopus edmundsi 
Atractomorpha crenulata 
Atractomorpha psittacina 
Atractotomus mali