Acleris hastiana 
Acleris macdunnoughi 
Acletoxenus formosus 
Aclytia heber 
Aclyvolva lanceolata 
Acmaeodera cisti 
Acmaeodera mixta 
Acmaeodera pulchra 
Acmaeodera tubulus 
Acmaeoderella flavofasciata 
Acmon blue 
Acmotoma magniferella 
Acocopus verrucifer 
Acoel Flatworm 
Acolutha pictaria 
Acompus rufipes 
Aconite-leaved Buttercup 
Aconitum nasutum 
Aconophora laminata 
Acontista multicolor 
Acorn Fig 
Acorn Moth 
Acorn peperomia 
Acorn Plum Gall Wasp