Diplonevra abbreviata (von Roser)

Liu, Guang-Chun & Yang, Meng, 2016, A taxonomic revision of the genus Diplonevra Lioy (Diptera: Phoridae) from China, Zootaxa 4205 (1), pp. 31-51 : 34-35

Diplonevra abbreviata (von Roser)

( Figs. 3, 4 , 34 , 50 )

Phora abbreviata v. Roser, 1840: 64.

Diploneura (Tristoechia) abbreviata (v. Roser): Schmitz, 1927a: 47. Phora sordipennis Dufour, 1841: 422 . Synonymized by Becker 1901: 22.

Male: Head. Frons black, with 40–50 scattered hairs. Mean frontal width 0.45 of head width. First row of bristles slightly convex, 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, broad and long. Thorax. Scutum and scutellum black. Anepisternum and anepimeron dark brown; the other part of pleuron pale yellow. Notopleuron with 4 bristles. Scutellum with 4 long bristles. Legs yellow except for tips of hind femora and hind tibiae and tarsi. Front tibia with a dorsal bristle two fifths of length from base and with 6–8 small differentiated hairs 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 3 anterodorsal bristles and 3 hair palisades, without converged. Wing 3.21 mm long. Costal index 0.46. Costal ratios 13.7:2.1:1. Costal cilia 0.1 mm long. Vein M1 straight. Axillary ridge with 3 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 dark brown. Hypopygium dark brown. Left side of epandrium narrow, with 8–10 long hairs and 1 bristle. Right side of epandrium broad, with about 14–20 long hairs toward posterior margin. Left side of hypandrium protruding transparent lobe, tomentose; right side of hypandrium large, ventral apex with an incurved hook. Stalk of circus yellow brown and circus pale yellow. Body length 2.7–3.2 mm.

Female. Head similar to male except as follows. Frons black, shinning. Postpedicel orange yellow. Proboscis pale yellow, elongate, extending beyond postpedicel. Wing 4.0 mm long. Costal index 0.46–0.48. Costal ratios 8.1: 1.6:1. Costal cilia 0.10 mm long. Abdominal tergites dark brown. Venter dark brown. Body length 3.6–4.0 mm.

Distribution. China (Jilin, Liaoning, Shaanxi, Guizhou, Yunnan, Hainan); Japan, Russia, Norway, United Kingdom, Slovakia.

Specimens examined. 1♂, Jilin, Changbai Mountain (43°25N, 129°44′E), 27–Jul–2007, Hong Fang ; 3♂, Liaoning, Shenyang (41°50′N, 123°35′E), 13–Aug–1991, Guangchun Liu ; 1♂, Liaoning, Qianshan (41°14′N, 123°11′E), 8–Jul–2007, Hong Fang ; 1♂, Jilin, Changbai Mountain (42°25′N, 129°45′E), 27–Jul–2003, Hong Fang ; 1♀, Jilin, Changbai Mountain (42°25′N, 129°45′E), 26–Jul–2007, Hong Fang . 1♂, Jilin, Changbai Mountain (42°25N, 129°45E), 8–Jul–2004, Hong Fang, Hongtao Han ; 1♂, Beijing (39°59′N, 110°12′E), 28–Jul–2011, Maoling Sheng ; 1♀, Liaoning, Benxi, Xinbin (41°61′N, 124°98′E), 20–May–2008, Tao Li ; 1♂, Liaoning, Benxi, Yanghugou (41°12′N, 124°40′E), 4–Jul–2013, Zhuo Zhang ; 1♂, Shenyang, Forest Park (41°59′N, 123°39′E), 20– Aug–2003, Guangchun Liu ; 1♀, Liaoning, Benxi, Yanghugou (41°12′N, 124°40′E), 28–Jul–2008, Gangchun Liu ; 1♂, Shaanxi, Zhuque Park (33°54′N, 108°33′E), 17–Jul–2012, Jianfeng Wang ; 1♂, Liaoning, Fushun, Xinbin (41°61′N, 124°98′E), 20–Jul–2009, Tao Li ; 1♀, Yunnan, Menghai (41°62′N, 124°95′E), 11–Apr–2011, Hongwei Chen ; 1♂, Guangxi, Mulun (25°02′N, 108°02′E), 21–Jul–2015, Zhiqiang Cheng ; 1♂, Guizhou, Libo (25°17′N, 107°56′E), 20–Jul–2015, Zhiqiang Cheng ; 1♂, Liaoning, Fushun, Wunvshan (41°19′N, 125°25′E), 6–Jul–2012, Meng Yang.

Remarks. The species is widely distributed in the Palaearctic Region. It can be distinguished from other species by hind tibia with 3 hair palisades and 2 anterodorsal bristles before apical quarter; wing vein M1 straight; abdominal tergites and venter uniformly dark brown.

Figures

FIGURES 1 – 8. Hind femora and trochanters, posterior view. 1 – 2. D. bifasciata (Walker); 3 – 4. D. abbreviata (v. Roser); 5 – 6. D. bisetifera Liu; 7 – 8. D. peregrina (Wiedemann). Scale bar = 0.1 mm.

FIGURES 33 – 48. Hind tibiae, anterior view. 33. D. bifasciata (Walker); 34. D. abbreviata (v. Roser); 35. D. bisetifera Liu; 36. D. peregrina (Wiedemann). 37. D. florescens (Turton); 38. D. corniculata sp. nov.; 39. D. trapezia sp. nov.; 40. D. funebris (Meigen); 41. D. vecticrassa sp. nov.; 42. D. pachycera (Schmitz); 43. D. lamella sp. nov.; 44. D. taigaensis Michailovskaya; 45. D. furcavectis sp. nov.; 46. D. brevicula sp. nov.; 47. D. triangulata sp. nov.; 48. D. spinibotra sp. nov. Scale bar = 0.1 mm.

FIGURES 49 – 64. Mid tibiae, anterior view. 49. D. bifasciata (Walker); 50. D. abbreviata (v. Roser); 51. D. bisetifera Liu; 52. D. peregrina (Wiedemann). 53. D. florescens (Turton); 54. D. corniculata sp. nov.; 55. D. trapezia sp. nov.; 56. D. funebris (Meigen); 57. D. vecticrassa sp. nov.; 58. D. pachycera (Schmitz); 59. D. lamella sp. nov.; 60. D. taigaensis Michailovskaya; 61. D. furcavectis sp. nov.; 62. D. brevicula sp. nov.; 63. D. triangulata sp. nov.; 64. D. spinibotra sp. nov. Scale bar = 0.1 mm.