Addition To The Taxonomic And Distribution Records Of Abernessia Arle (Hymenoptera: Pompilidae)

Species of spider wasps (Hymenoptera: Pompilidae) arc diverse in the tropical regions. The Neotropical genus Abernessia Arle, 1947 was described from Sao Paulo and later found in Espirito Santo, Bahia and Minas Gerais, Brazil. Herein, we establish a neotype for the type-species A. irmgardae Arle, discuss the previous distribution records of Abernessia in South America, add new records for Brazil, and expand the recorded distribution to San Pedro, Paraguay. The male of Abernessia giga is described and illustrated. Finally, an updated key to species known from males is provided.