Sepsis monostigma Thompson, 1869

Ang, Yuchen & Meier, Rudolf, 2010, Five additions to the list of Sepsidae Diptera for Vietnam: Perochaeta cuirassa sp. n., Perochaeta lobo sp. n., Sepsis spura sp. n., Sepsis sepsi Ozerov, 2003 and Sepsis monostigma Thompson, 1869, ZooKeys 70, pp. 41-56 : 47

Sepsis monostigma Thompson, 1869 Figs 15-17

Sepsis monostigma Thompson, 1869. Kongliga svenska fregatten Eugenies resa omkring Jorden, 2(1): 443.

Material.

♂♂♀♀ (RMBR), Vietnam, Lào Cai Province, Sa Pa Valley. From ex culture established from ♀ collected from dung on cow farm, 4km NE of Sa Pa town [22°21'28.19"N; 103°51'53.35"E, elevation 1250m ASL]. Collected 15.VII.2010 (Ang Y).

Taxonomic remarks.

Sepsis monostigma is an Oriental species that resembles Sepsis pseudomonostigma Ursu, 1969 but is geographically exclusive from Sepsis pseudomonostigma (which has only been recorded in South and South-east Europe and Central Asia). Sepsis monostigma can be differentiated by the two long medioventral spines (one short spine in Sepsis pseudomonostigma ) on the fore femur (Fig. 15), lack of ventromedial spinules on the fore tibia (Fig. 16) and surstylus (Fig. 17) being much thinner than that in Sepsis pseudomonostimga .

Distribution.

China (Guandong), Taiwan, India (Jammu and Kashmir, Uttar Pradesh, West Bengal), Japan (Hokkaido Is., Honshu Is., Kyushu Is.), Korea, Philippines (Luzon Is.), Sri Lanka, South Russia (Amurskaya Oblast’, Irkutskaya Oblast’, Khabarovskiy Kray, Krasnoyarskiy Kray, Novosibirskaya Oblast’, Primorskiy Kray, Sakhalinskaya Oblast’), Vietnam ( Lào Cai).