Keilbachia flagrispina

Zhang, Su-Jiong, Huang, Junhao, Wu, Hong & Wang, Yi-ping, 2010, The genus Keilbachia Mohrig from Mainland China, with descriptions of two new species (Diptera, Sciaridae), ZooKeys 52, pp. 47-56 : 48

Keilbachia flagrispina

Keilbachia flagrispina Mohrig, in Mohrig, Röschmann & Rulik 1999: 198.

Diagnostic characters.

(Male). Body length 1.64-1.71mm; wing length 1.36-1.41mm.

Eye bridge 3-4 facets wide. Length/width of 4th flagellomere 2.19-2.32.

Anterior pronotum with 5-6 setae. Episternum 1 with 3-4 setae.

c/w 0.69-0.72, R1/R 0.71-0.76, r-m with one seta.

The mesial megaseta on gonostylus very long and curved, nearly three times as long as the width of gonostylus. The basal body of mesial megaseta is not distinct. Tegmen simple, much broader subbasally than subapically.

Specimens examined.

China, Yunnan, Baoshan, Mts. Gaoligongshan, 24°49.729'N; 98°46.074'E, sweep-net 11.V.2009. 4 males, Man-Man Wang [SM00878-00880, SM00882] (ZAFU); 3 males, Su-Jiong, Zhang [SM00886, SM00902-00903] (ZAFU).

Distribution.

China (Yunnan), Myammar, Nepal.

Biology.

Unknown.

Remarks.

This species is new to China, which was firstly described from Nepal, based on two males. It is similar to Keilbachia ferrata (Hippa & Vilkamaa, 1994) in having two subapical megaseta and a long mesial megaseta, but Keilbachia flagrispina can be separated by the mesial megaseta very long and strongly curved, and two subapical megaseta subequal in length on gonostylus. The materials examined from China do not show distinct variation, but we found the Chinese specimens are much smaller in body length, which is 1.64-1.71 mm, while 2.5 mm in Nepal materials.