V. A. Mutin
Review of Sphegina claviventris species-group (Diptera, Syrphidae) with description of a new species from Japan.
Number: 107, Pages: 1 - 8
The review of four species from Sphegina claviventris-group with description of new species S. mikado sp. n. from Japan (Honshu, Kyushu) and key to species is given. The phylogenetic connections of the claviventris-group and possible ways of its evolution are discussed.