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

description: Diplonevra florescens (Turton)
(Figs. 9, 10, 37, 53)
Musca florescens Turton, 1801: 636.
Diplonevra florescens: Thompson & Pont, 1994:76
Bibio florea Fabricius, 1794: 255. Preocc. Linnaeus 1758: 519.
Phora flexuosa Egger, 1862: 1233. Synonymized by Schmitz, 1929: 23. Trineura palpina Zetterstedt, 1848: 2868. Synonymized by Schmitz 1955: 350. Phora abdominalis (Fallén), 1823: 5 (nec Meigen). Synonymized by Disney 1982: 113. Diploneura versicolor (Schmitz), 1929: 184. Synonymized by Disney 1981:157.
Male: Head. Frons black, with 16–18 scattered hairs. Mean frontal width 0.48 of head width. First row of bristles slightly convex, antial bristles further apart than either is from an anterolateral. Second row of bristles 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, spherical, with pointed tip. Palpus yellowish brown and 3 times as long as its breadth, with 6 bristles on ventral apex. Proboscis pale yellow. Thorax. Scutum and scutellum black. Notopleuron with 3 bristles. Scutellum with 4 bristles. Legs yellow brown. Front tibia with a dorsal bristle at midlength and with 9 small differentiated hairs extending below this to the tip. Mid tibia with 2 longitudinal hair palisades, anterodorsal one sharply deflected onto anterior face and extending 2/3 (0.68) of tibia. Posterior face of hind trochanter with 4–7 short bristles in a row and 3–5 fine hairs. Posterior face of hind femur with 5–8 short bristles and 5–6 scattered hairs, lacking ascending process. Hind tibia with 2 palisades, 2 anterodorsal bristles and lacking anteroventral bristles. Wing 3.55 mm long. Costal index 0.49. Costal ratios 5.2:2.8:1. Costal cilia 0.10 mm long. Vein M1 curved. Axillary ridge with 4–6 axillary bristles. All veins brown and membrane yellowish brown. Haltere brown. Abdomen. Tergites dark brown. Venter dark brown. Hypopygium dark brown. Left side of epandrium narrow with 6–8 long hairs. Right side of epandrium broad, with about 10–12 long hairs toward posterior margin, ventral apex with a recurved hook. Hypandrium tomentose, without bristles. Circus and stalk of circus pale yellow. Body length 3.5 mm.
Female. Head similar to male except as follows. Frons black, shinning. Postpedicel orange yellow. Proboscis brown, longer than breadth, extending beyond postpedicel. Wing 3.5 mm long. Costal index 0.52. Costal ratios 5.18: 2.85:1. Costal cilia 0.05 mm long. Body length 3.4mm.
Distribution. China (Liaoning, Ningxia, Guangxi); Russia, United Kingdom, Germany, Holland, Hungary, Italy, Austria, Portugal.
Specimens examined. 1♂, Ningxia, Liupan Mountain (35°47′N, 106°17′E), 10–Jul–2008, Lixin Su; 1♂ 1♀, Guangxi, Maoer Mountain (25°42′N, 110°48′E, 800m), 14–May–2004, Guangchun Liu; 1♂, Liaoning, Qianshan (41°08′N, 123°16′E), 8–Jul–2004, Hong Fang; 1♂, Ningxia, Liupan Mountain, (35°47′N, 106°17′E), 9–Jul–2008, Lixin Su.
Remarks. The species is different from other species of genus by wing vein M1 curved, hind tibia with 2 anterodorsal bristles, without ascending process on posterior face of hind femur, base of posterior face of hind femur with 4 short bristles in a row.
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 pages 36-37, DOI: 10.11646/zootaxa.4205.1.3, http://zenodo.org/record/192532