Taxonomic revision of ethe Cercyon (Arcocercyon) dieganus species group (Coleoptera: Hydrophilidae: Sphaeridiinae)

Abstract

Revision of the species belonging to Cercyon (Arcocercyon) dieganus species group with review of their taxonomy and distribution. Seven species are recognized in Africa, Near East and Europe, of which two are described as new for science.

Keywords

• Cercyon
• sibg. Arcocercyon
• Cercyon dieganus species group
• Armostus
• Afrotropical region
• Palaearctic region
• revision
• new species
• lectotype designation