24-spot ladybird 
Aades cultratus 
Abacena accincta 
Abaeis salome jamapa 
Abana horvathi 
Abantiades labyrinthicus 
Abax parallelepipedus 
Abbot's Bagworm Moth 
Abbreviated Button Slug 
Abisara geza 
Abisara neavei 
Abracris flavolineata 
Abraxas intervacuata 
Abrosoma festinatum 
Abrosoma gibberum 
Abrupt Epiblema Moth 
Abryna rubeta 
Acacia blue 
Acacia leaf beetle 
Acacia shield bug 
Acacus sapuani 
Acadian hairstreak 
Acadian hermit crab 
Acalitus ferrugineum