A new species of Chalastonepsia Søli, 1996 (Diptera, Mycetophilidae) from Vietnam

Collection: Pensoft Publishers

Keywords: Diptera · Topics: Diptera species taxonomy and behavior, Insect behavior and control techniques, Hymenoptera taxonomy and phylogeny

The genus Chalastonepsia Søli, 1996 was erected for the species Chalastonepsia orientalis Søli, 1996 from Pahang, Peninsular Malaysia. The species C. hokkaidensis Kallweit, 1998 was described from Hokkaido, Japan. Ševčík and Hippa (2010) described two additional species of Chalastonepsia: C. nigricoxa Ševčík & Hippa, 2010 from Sumatra and Peninsular Malaysia and C. montana Ševčík & Hippa, 2010 from N.W. Thailand.A new Oriental species is described in the genus Chalastonepsia of the subfamily Gnoristinae – Chalastonepsia vumanhi Kazandzhieva sp. nov. from a single locality in Tam Dao National Park in northern Vietnam. The new species is closely related to C. hokkaidensis Kallweit, 1998, but differs from it by the number of long anterior projections on flagellomeres (1–9), the shape and size of T9, details on the gonostyli and their appendages. An identification key to the extant species of Chalastonepsia is provided. The taxonomy of the genus Chalastonepsia is shortly discussed in relation to the distinct morphology of the type species C. orientalis Søli, 1996.

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