Orthobrachia maoershanensis Huang, Xin & Wang, 2003

Huang, Guo-Hua, Su, Zi-You & Stuening, Dieter, 2016, Taxonomic notes on the genus Orthobrachia Warren, with description of a new species from China and Thailand (Lepidoptera, Geometridae), ZooKeys 609, pp. 121-137 : 130-131

Taxon classification Animalia Lepidoptera Geometridae

Orthobrachia maoershanensis Huang, Xin & Wang, 2003 Figures 3 E–F, 4F, 5F

Orthobrachia maoershanensis Huang, Xin & Wang, 2003, Tinea, 17 (5): 229. Type locality: Guangxi, China.

Diagnosis.

The species is externally very similar to the new species described below, to Orthobrachia simpliciata and also to Orthobrachia tenebrosa , but can be distinguished from all by the following characters: The antemedial and postmedial lines of the forewing are distinctly waved in tenebrosa , in maoershanensis almost straight, only the postmedial is slightly curved inward near costa of forewing, straight in the new species. From Orthobrachia simpliciata , it can easily be separated mainly by the differences in the hind wing pattern described above. Further distinguishing features see next species. The male genitalia of all three species have clear specific characters, the female genitalia as well, the latter uniting simpliciata , maoershanensis and hirowatarii sp. n. by a number of characters shared.

Material examined.

CHINA: 1♂, Holotype, Mao’ershan National Nature Reserve, 2000 m altitude, 25°54'N, 110°30'E, Primary forest, Xin’an County, Guangxi Province, China, 28.VI.2003, G.H. Huang leg., Gen. prep. no. HGH-SCAU_0011, SCAU; Paratypes 2♂♂7♀♀, same locality as in the holotype, 1600-2000 m, 28.VI-4.VII.2003, M. Wang and G.H. Huang leg., Gen. prep. no. HGH-SCAU_0013 (female), SCAU (1♂1♀ donated to Institute of Zoology, Chinese Academy of Sciences, Beijing (IZCAS)); 1♂, Huilongsi, Mao’ershan National Nature Reserve, 1489 m, 10.IX.2015, M. Wang leg., HUNAU. 1♀, N. Vietnam, Cha-pa, Mt. Fan-si-pan, 22°15'N 103°46'E, 1500-1800 m, 10.VI-6.VII.1994, lux, leg.V. Sinjaev & local coll., ZFMK.

Biology.

The species was collected in June-July and again in September in a primary forest near the top of a mountain, at elevations between 1500 and 2000 m.

Distribution.

China (Guangxi), Vietnam.