Diplonevra bisetifera Liu
Creators: name: Liu, Guang-Chun
name: Yang, Meng
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Phoridae
Diplonevra
Diplonevra bisetifera

description: Diplonevra bisetifera Liu
(Figs. 5, 6, 35, 51)
Diplonevra bisetifera Liu, 1995: 256.
Male: Head. Frons black, subshining, with 40–50 scattered hairs. Mean frontal width 0.51 of head width. First row of bristles straight, antial bristles further apart than either is from an anterolateral. Second row of bristles much concave, pre-ocellar bristles further apart than either is from a mediolateral. Supra-antennal bristles well below antials and close each other. Postpedicel brownish yellow, oval. Palpus orange yellow and 2 times as long as its breadth, with 6 bristles on ventral apex and about 20 short bristles on venter. Proboscis pale yellow. Thorax. Scutum black. Anepisternum and anepimeron dark brown, the other parts of pleuron pale yellow. Notopleuron with 4 long bristles. Scutellum with 4 bristles. Legs yellow except for tips of hind femur and hind tibia and tarsi. Front tibia with a dorsal bristle two fifths of length from base and with 7–10 small spines extending below this to the tip. Mid tibia with 2 longitudinal hair palisades, anterodorsal one slightly deflected onto anterior face and extending to 5/6 (0.85) of tibia. Posterior face of hind trochanter without differentiated bristles. Posterior face of hind femur with 2 short bristles and several hairs along ventral region, lacking ascending process. Hind tibia with 2 anterodorsal bristles and 3 palisades, which dorsal and posterodorsal ones converged at mid-length of tibia. Wing 3.7–3.8 mm long. Costal index 0.47. Costal ratios 12.3:2.6:1. Costal cilia 0.1 mm long. Vein M1 straight. Axillary ridge with 4–5 axillary bristles. All veins brown and membrane yellowish brown. Haltere pale yellow. Abdomen. Tergites dark brown except tergite 1 pale yellow, with small hairs on tergites 1–5, but longer hairs on tergite 6. Venter pale yellow. Hypopygium brown. Left side of epandrium narrow with 4–6 long hairs. Right side of epandrium broad, with about 6–10 long hairs toward posterior margin, ventral apex with an incurved hook. Left side of hypandrium broad, tomentose; right side of hypandrium large and broad, tomentose. Stalk of circus yellow brown and circus pale yellow. Body length 3.2 mm.
Female. Head similar to male except as follows. Frons black, shining. Postpedicel orange yellow. Proboscis pale yellow, elbowed, elongate, extending beyond postpedicel. Wing 4.0 mm long. Costal index 0.46. Costal ratios 8.5: 1.8:1. Costal cilia 0.12 mm long. Abdominal tergites dark brown. Body length 4.1 mm.
Distribution. China (Liaoning, Guizhou, Yunnan).
Specimens examined. 1♂ (holotype), Yunnan, Mengyang (22°04′N, 100°52′E), 6–Jun–1991, Guangchun Liu; 1♂ 1♀ (paratypes), Yunnan, Mengyang (22°04′N, 100°52′E), 6–Jun–1991, Guangchun Liu; 1♂, Liaoning, Funshun, Xinbin (41°61′N, 124°98′E), 5–Aug–2005, Guangchun Liu; 1♂, Liaoning, Qianshan Mountain (41°10′N, 123°06′E), 20–Jul–2007, Guangchun Liu; 1♂, Guizhou, Fanjing Mountain (27°54′N, 108°39′E), 9–Aug–2015, Zhiqiang Cheng; 1♂, Jiangxi, Jinggang Mountain (26°32′N, 114°09′E), 9–Aug–2005, Hong Fang.
Remarks. The species is similar to D. abbreviata v. Roser, it differs from latter by hind tibia with 3 hair palisades which dorsal and posterodorsal ones converged; hind tibia with 2 anterodorsal bristles before apical quarter; abdominal venter pale yellow.
description: Published as part of Liu, Guang-Chun & Yang, Meng, 2016, A taxonomic revision of the genus Diplonevra Lioy (Diptera: Phoridae) from China, pp. 31-51 in Zootaxa 4205 (1) on page 35, DOI: 10.11646/zootaxa.4205.1.3, http://zenodo.org/record/192532