Acerotella is a genus of parasitoid wasps belonging to the family Platygastridae.
Achnanthes is a genus of diatoms belonging to the family Achnanthaceae.
Achnanthidium is a genus of diatoms belonging to the family Achnanthidiaceae.
Aclastus is a genus of wasps belonging to the family Ichneumonidae. The genus was described in 1868 by Förster and has cosmopolitan distribution.
Acrolocha is a genus of beetles belonging to the family Staphylinidae.
Acrolyta is a genus of wasps belonging to the family Ichneumonidae. The genus was described in 1868 by Arnold Förster and has cosmopolitan distribution. It is a parasitoid of Cotesia wasps.
Acrotrichis is a genus of beetles belonging to the family Ptiliidae.
Aglaostigma is a genus of sawflies belonging to the family Tenthredinidae.
Agramma is a genus of insects belonging to the family Tingidae.
Alloeotomus is a genus of plant bugs belonging to the family Miridae.
Aloconota is a genus of beetles belonging to the family Staphylinidae.
Amauronematus is a genus of sawflies belonging to the family Tenthredinidae.
Amblyaspis is a genus of parasitoid wasps belonging to the family Platygastridae.
Amblystegium is a genus of moss belonging to the family Amblystegiaceae. The genus was described in 1853 by Wilhelm Philippe Schimper. The genus has cosmopolitan distribution.
Amischa is a genus of beetles belonging to the family Staphylinidae.
Gambrus is a genus of wasps belonging to the family Ichneumonidae. The genus was first described by Förster in 1868 and has cosmopolitan distribution.
Batophila is a genus of beetles belonging to the family Chrysomelidae, containing some 30 species in the Palaearctic and Oriental regions.
Gauropterus is a genus of beetles belonging to the family Staphylinidae.
Lochmaea is a genus of beetles belonging to the family Chrysomelidae.
Hexametra is a genus of nematodes belonging to the family Ascarididae.
