Siphunculina shangyongensis, Liu, Xiao-Yan, Nartshuk, Emilia P. & Yang, Ding, 2017

Liu, Xiao-Yan, Nartshuk, Emilia P. & Yang, Ding, 2017, Three new species and one new record of the genus Siphunculina from China (Diptera, Chloropidae), ZooKeys 687, pp. 73-88 : 78-80

Siphunculina shangyongensis sp. n. Figs 13-14, 15-18

Diagnosis.

Ocellar triangle black, smooth, shiny, reaching anterior 0.9 of frons, with slightly pointed apex. Scutellum with three pairs of scutellar setae on small tubercles. Cephalic and thoracic setae and setulae black. Notopleurals 1+1. Gonite nearly rectangular, slightly narrowed basally.

Description.

Holotype. Male. Body length 1.8 mm, wing length 1.6 mm.

Head black with gray microtomentum, 0.75 times as long as high in profile, as wide as thorax; face somewhat concave in lateral view, facial carina distinct; frons brown, 0.9 times as long as wide, projecting only slightly in front of eye; gena broad, 0.5 times as wide as first flagellomere, yellowish brown except for ventral margin black; parafacial indistinct; vibrissal angle distinctly produced beyond eye by subequal length to gena-width. Ocellar triangle black, smooth, shiny, reaching anterior 0.9 of frons, with slightly pointed apex; ocellar tubercle brown. Cephalic setae and setulae black. Antenna yellow with thick grayish microtomentum except for distodorsal margin of first flagellomere black; first flagellomere as long as wide; arista black except for basal segment yellow, with short brown pubescence. Proboscis brown with brown setulae; palpus yellow with brown setulae.

Thorax black, evenly covered with short setulae. Scutum 1.1 times as long as wide. Thoracic pleuron shiny brown without microtomentum. Scutellum black, 0.6 times as long as wide; 3 pairs of scutellar setae on small tubercles; apical scutellar seta 0.5 times as long as scutellum. Setae and setulae on thorax black; notopleurals 1+1, developed. Legs with coxae brown, femora brown with distal tips yellow, tibiae yellow with middle 1/3 of mid tibia brownish, middle 1/3 of hind tibia brown, tarsi yellow with hind tarsomeres 2-4 brown. Setulae on legs brown. Wing 2.2 times as long as wide, hyaline; veins yellowish brown. Relative lengths of 2nd: 3rd: 4th costal sections = 3: 11: 3; cross-veins r-m and dm-cu not approximated, r-m at basal 0.6 of discal medial cell. Halter brown.

Abdomen shiny brown except for tergite 1 yellow; venter yellow. Setulae on abdomen black.

Male genitalia (Figs 15-18): Epandrium blackish brown with long brown setulae; surstylus 0.6 times as long as epandrium in lateral view. Cercus short and broad, with a concavity on ventral margin. Gonite nearly rectangular, slightly narrowed basally; basiphallus slightly longer than wide, cylindrical; distiphallus short, membranous; phallapodeme long, distinctly projecting beyond hypandrium, with basal stalk narrow in lateral view. Hypandrium narrow, without two basal rounded projections, arms free and long, apex with internal projection long, external projection short.

Female. Unknown.

Type material.

Holotype, ♂, China: Yunnan: Xishuangbanna, Shangyong, 7. V. 2007, leg. Wenliang Li (photographed and genitalia prepared). Paratype, 3 ♂♂, same locality and date as holotype, leg. Hui Dong (in 75% alcohol, deposited in CAU).

Distribution.

China (Yunnan).

Remarks.

The new species is somewhat similar to S. bella Kanmiya, but can be separated from the latter by the following features: hind tibia yellow except for middle 1/3 brown, tarsi yellow except for hind tarsomeres 2-4 brown, surstylus 0.6 times as long as epandrium in lateral view; in S. bella , the hind tibia is yellow with largely infuscate maculae medially, the tarsi are entirely yellow, the surstylus is as long as epandrium in lateral view ( Kanmiya 1989).

Etymology.

The species is named after the type locality Shangyong.