Aporocera scabrosa 
Apostegania rectilineata 
Apostlebird 
Apotomis capreana 
Apotomis infida 
Appalachian azure 
Appalachian Brown 
Appalachian Brown 
Appert's tetraka 
Appias phoebe 
Apple Blossom Beetle 
Apple fruit rhynchites 
Apple looper 
Apple maggot 
Apple-green swallowtail 
Appleleaf-curling Moth 
Apriona brunneomarginata 
Apritcia jovialis 
Apsarasa radians 
Aptenopedes aptera 
Apurímac brushfinch 
Apurímac Spinetail 
Aquaphilic grasshopper 
Aquatic Coral Snake