A New Genus of Chironomidae (Insecta: Diptera) from the Lower Cretaceous of Mongolia

Resumo

A new genus of Chironomidae (Insecta: Diptera) is described based on a single incomplete pupa from Khutel Khara (lower part of the Tsagan Tsab Formation, Lower Cretaceous; Mongolia). The new genus displays a mosaic of Podonominae and Tanypodinae characters. The most distinctive characters of the new taxon are stout strongly darkened anal spurs, strong serration of anal lobes, and peculiar armament at the base of anal lobes, looking as an artichoke-like spinose structure, unique among Chironomidae.