Dasyhelea ludingensis

description

Description. Female: Eyes pubescent (Figure 3 A, 4 A – C), separated by less than 1 facet (Figure 3 B, 4 A, C). Frontal sclerite rhombic, with long processes (Figure 3 B, Figure 4 A). Antenna with 13 flagellomeres, without sculptured; flagellomeres cylindrical, with sensilla chaetica, sensilla trichodea and sensilla basiconica, terminal flagellomere without apical papilla (Figure 3 A, 4 D – F); AR 0.75 – 0.87 (0.80, n = 22). Apex of labrum with sensilla trichodea (Figure 4 G). Maxillary palp with 5 segments (Figure 3 C); segment 3 cylindrical, with 6 – 8 capitates sensillae scattered on the basal half surface (Figure 4 H); segment 5 subcylindrical, with long setae (Figure 4 I); PR 2.13 – 3.33 (2.87, n = 22). Clypeus with 3 pairs of setae (Figure 3 C). Thorax. Scutum dark brown uniformly (Figure 2 A) or with yellow lines (Figure 2 B), spots (Figure 2 C) or areas (Figure 2 D – F). Scutellum with 6 – 7 setae (Figure 4 J). Wing (Figure 3 D) membrane with microtrichia, macrotrichia especially on veins, distal portion and along wing margin; costa extending to about mid – length of wing; 1 st radial cell completely obliterated, 2 nd radial cell rectangular; wing length 0.69 – 0.88 (0.79,

A novel geographic population of Dasyhelea ludingensis Zhang & Yu from Guizhou Province, China (Diptera: Ceratopogonidae)

diagnosis

Diagnosis. Female: Body pale brown to dark brown. Head dark brown. Scutum dark brown uniformly (Figure 2 A) or with yellow lines (Figure 2 B), spots (Figure 2 C) or areas (Figure 2 D – F). Scutellum yellow-green, postscutellum pale brown. Halteres light brown, with white knob. Abdomen brown, membranes between sclerites and abdominal segments yellow. Legs light brown.

A novel geographic population of Dasyhelea ludingensis Zhang & Yu from Guizhou Province, China (Diptera: Ceratopogonidae)

distribution

3.2. Distribution China (Beijing, Shanxi, Shandong, Henan, Shaanxi, Anhui, Jiangsu, Zhejiang, Jiangxi, Hunan, Hubei, Sichuan, Chongqing, Guizhou, Yunnan, Fujian, Taiwan, Guangdong, Guangxi, Hainan, Hong Kong).

A novel geographic population of Dasyhelea ludingensis Zhang & Yu from Guizhou Province, China (Diptera: Ceratopogonidae)