Anthomyza trifurca Sueyoshi & Roháček, 2003

Roháček, Jindřich, 2018, First Anthomyzidae (Diptera) from China: a new genus, six new species and new records, Acta Entomologica Musei Nationalis Pragae 58 (1), pp. 35-76 : 70-71

Anthomyza trifurca Sueyoshi & Roháček, 2003

Material examined. CHINA: SICHUAN: Pingwu Co., Laohegou Reserve, 32°29′3.20′′N 104°43′9.96′′E, 1400–2100 m, 13.–17.v.2016 , 7 2 ♀♀, O. Lonsdale leg. ( CNCI, 1 1 ♀ genit. prep.); Sichuan: Leshan: Emeishan, Leidonping, 29°32′25′′N 103°19′52′′E, 2420 m, around parking lot, shops and hotels, collected by aspirator, rainy weather, 10.vi.2014, 1, J. Hájek, J. Růžička & M. Tkoč leg. ( NMPC) (in ethanol); Sichuan: Wenchuan, 50 km W of Dujiangyan, Qionglai Mountains, 10 km SW of Wolong vill.. Wolong NNR, Shaotang river valley, Yiangchanggou vill., area of earthquake damaged Panda centre, 30°58′31′′N 103°07′21′′E, 2100 m, sweeping and individual collecting on vegetation close to stream and small pond, 24.vi.2014, 1, J. Hájek, J. Růžička & M. Tkoč leg. ( NMPC) (in ethanol); Sichuan: Wenchuan, Aba, Wolong, Wolong Nature Reserve, 31°01′32′′N 103°10′15′′E, 2050 m, forested slope, sweeping vegetation, individual collecting, 23.vi.2014, 1 ♀, J. Hájek, J. Růžička & M. Tkoč leg. ( NMPC, genit. prep.); Sichuan: Ya’an, 60 km N of Baoxing, above Qiaoqixiang lake, Zhaoxia vill., Nibagou Scenic Area, 30°41′16′′N 102°42′41′′E, 2400 m, sweeping close to stream, forest, 14.vi.2014, 2, J. Hájek, J. Růžička & M. Tkoč leg. ( NMPC, 1 genit. prep.).

Remarks. This is the most derived representative of the Anthomyza bellatrix group. Its sister species, A. bellatrix Roháček, 1984 (known from adjacent North Korea, Japan: Honshu and Russia: Kuril Is., see ROHÁČEK 2006) is likely to be found in China.

Biology. Insufficiently known despite the species being common in Japan (see SUEYOSHI & ROHÁČEK 2003). In South Korea the species was most frequently swept from undergrowth of forests but it was also found in grassland and ruderal habitats ( ROHÁČEK 2006). Recent unpublished records from Japan (M. Tkoč leg.) indicate that the species is associated with larger grasses in forests. The flight period of adults is long (April–October).

Distribution. The above first records from China (Sichuan) demonstrate that A. trifurca is apparently widespread in the E. Palaearctic area and reaches far to the south. It has otherwise been recorded only from Japan (Hokkaido, Honshu, Shikoku, Kyushu), North Korea and South Korea ( ROHÁČEK 2006, 2009).