Diplonevra funebris (Meigen)

(Figs. 15, 16, 40, 56)

Phora funebris Meigen, 1830: 221 .

Diploneura (Diploneura) funebirs: Schmitz, 1927a: 44 .

Phora pseudoconcinna Strobl, 1892: 199 . Synonymized by Schmitz, 1949: 225. Phora luctuosa Becker, 1901: 72 . (nec Meigen). Synonymized by Schmitz, 1949: 225. Dohrniphora concinna Malloch, 1912: 431 . Synonymized by Schmitz, 1924: 316. Dohrniphora concinna var. rostralis Schmitz, 1918: 111 . Synonymized by Lundbeck, 1922: 154. Phora cimbicis Aldrich, 1892: 143 . Synonymized by Brues, 1904: 318.

Male: Head. Frons black, subshining, with 70–80 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 concave, all four bristles are equidistant. Supra-antennal bristles well below antials and close each other. Postpedicel brown, spherical with pointed tip. Palpus yellow brown and 2.5 times as long as its breadth, with 6 bristles on ventral apex. Proboscis narrow, elongate. Thorax. Scutum and scutellum dark brown, Notopleuron with 3 bristles. Scutellum with 4 bristles, the anterior pair being shorter than two behind. Legs dark brown. Front tibia with a dorsal bristle two fifths of length from base and with 8–10 differentiated hairs extending below this to the tip. Mid tibia with 2 longitudinal hair palisades, anterodorsal one straight, extending to more than 1/2 (0.59) of tibia. Posterior face of hind trochanter with 20–15 short bristles on ventral region and three stronger bristles on lateral region. Ventral region of posterior face of hind femur with 6 bristles in a row, and with a long ascending process bearing two long hairs apically. Hind tibia with 2 hair palisades, 2–3 anteroventral bristles, lacking anterodorsal bristles. Wing 1.88 mm long. Costal index 0.45. Costal ratios 7.9: 1.3:1. Costal cilia 0.05 mm long. Vein M1 curved. Axillary ridge with 3 axillary bristles. All veins brown and membrane yellowish brown. Haltere brown. Abdomen. Tergites dark brown Venter dark grey. Hypopygium dark brown. Left side of epandrium narrow, finger-like, with 11–12 long hairs. Right side of epandrium broad, with about 15–20 long hairs toward posterior margin; ventral apex with an incurved hook. Hypandrium tomentose, without bristles. Circus brown and stalk of circus yellow brown. Body length 2.2–2.6 mm.

Distribution. China (Liaoning, Inner Mongolia, Beijing, Gansu); widely distributed in Holarctic Region.

Specimens examined. 2♂, Beijing, Xiangshan (39°59′N, 110°12′E), 17–Jul–2004 , 6♂, Inner Mongolia, Hohhot, zhaojun Tomb (40°42′N, 111°41′E), 19–Jul–2004, Hong Fang ; 1♂, Inner Mongolia, Hohhot, Botanical Park (40°49′N, 111°41′E), 19–Jul–2004, Hong Fang ; 1♂, Ningxia, Qingtongxia (38°03′N, 106°05′E), 24–Jul– 2004, Hong Fang ; 1♂, Gansu, Dunhuang (40°08′N, 94°40′E), 4–Aug–2004, Hong Fang ; 1♂, Liaoning, Huludao, Nanpiao (41°06′N, 120°45′E), 20–Jul–2005, Hongtao Han ; 2♂, Liaoning, Xiongyue (40°12′N, 122°08′E), 5–Jul– 2005, Hongtao Han ; 1♂, Inner Mongolia, Helan Mountain (38°50′N, 105°40′E), 28–Jul–2010, Yunlong Cai ; 1♂, Inner Mongolia, Helan Mountain (38°50′N, 105°40′E), 4–Aug–2010, Yunlong Cai.

Remarks. The species is differentiated from others by a narrow, elongate proboscis, 2 hair palisades on hind tibia, 2–3 anteroventral bristles before apical quarter, a long ascending process on posterior face of hind femur.