Diplonevra brevicula, Liu, Guang-Chun & Yang, Meng, 2016

Liu, Guang-Chun & Yang, Meng, 2016, A taxonomic revision of the genus Diplonevra Lioy (Diptera: Phoridae) from China, Zootaxa 4205 (1), pp. 31-51 : 48

Diplonevra brevicula sp. nov.

( Figs. 27, 28 , 46 , 62 )

Male: Head. Frons black, subshining, with 30–40 scattered hairs. Mean frontal width 0.52 of head width. First row of bristles straight, antial bristles further apart than either is from an anterolateral. Second row of bristles straight, all four bristles are equidistant. Supra-antennal bristles well below antials and close each other. Postpedicel brownish yellow, spherical with pointed tip. Palpus yellow brown and 2.5 times as long as its breadth, with 6 bristles on ventral apex. Proboscis yellow. Thorax. Scutum and scutellum dark brown, Notopleuron with 3 bristles. Scutellum with 4 bristles. Legs dark brown. Front tibia lacking a near-dorsal bristles and differentiated hairs; front tarsomere 5 widened. Mid tibia 2 longitudinal hair palisades, anterodorsal one extending to 2/5 (0.41) of tibia. Posterior face of hind trochanter with 3–4 curved bristles on lateral region. Posterior face of hind femur with 4 bristles, and several hairs, with a rectangular ascending process, bearing 1–3 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 2 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 with 8–10 long hairs. Right side of epandrium broad, with about 10 long hairs toward posterior margin. Hypandrium tomentose, without bristles. Circus yellow brown and stalk of circus brown. Body length 2.4–2.8 mm.

Female. Unknown.

Distribution. China (Liaoning).

Etymology. The specific epithet refers to the short ascending process of posterior face of hind femur.

Holotype: ♂, Liaoning, Laotie Mountain (38°45′N, 121°11′E), 12–Sep–2010, Jianfeng Wang, Dianxing Feng.

Remarks. The species is differed from others by a short ascending process of hind femur and without any isolated bristles on hind tibia.

Figures

FIGURES 25 – 32. Hind femora and trochanters, posterior view. 25 – 26. D. furcavectis sp. nov.; 27 – 28. D. brevicula sp. nov.; 29 – 30. D. triangulata sp. nov.; 31 – 32. D. spinibotra sp. nov. 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.