Cladotanytarsus pseudomancus (Goetghebuer)

Wang, Xinhua & Guo, Yuhong, 2004, A review of the genus Cladotanytarsus Kieffer from China, with the description of three new species (Diptera: Chironomidae: Tanytarsini), Zootaxa 750, pp. 1-19 : 13-14

Cladotanytarsus pseudomancus (Goetghebuer) ( Fig. 13)

Tanytarsus pseudomancus Goetghebuer 1934: 200

Tanytarsus (Cladotanytarsus) pseudomancus Goetghebuer ; Freeman 1958: 348 ( Fig. 14 a) Cladotanytarsus pseudomancus (Goetghebuer) ; Cranston & Judd 1989: 266 (Fig. 54), Wang & Zheng 1993: 6 ( Figs. 8, 9 )

Material examined. 4 males (BDN. No. 0 4801, 0 4802, 0 4804, 04795), China, Hainan Province, Jianfengling Natural Conservation. V.15.1988. Leg. Wang. 2 males (BDN. No. 0 24, 025), Hainan Province, Bawangling Natural Conservation.. V.11.1988. Leg. Wang. Light trapped. 4 males (BDN. No. 0 20, 0 21, 0 22, 023), Hainan Province, Diaoluo County. V.20.1988. Leg. Wang. Light trap. 3 males (BDN. No. 0 26, 0 27, 028), Hainan Province, Dongzhaigang, Mangrove Natural Conservation. V.22.1988. Leg. Wang. 1 male (BDN. No. 20281), China, Hainan Province, Ledong County, Chongpo village. IV.17.1985. Leg. Wang.

Diagnosis. Spinules of anal point 25. Abdomen banded. Superior volsella and digitus long.

Male imago (n =14)

Total length 1.78–2.34 mm, 2.05 mm. Wing length 0.96–1.12 mm, 1.04 mm. Total length/wing length 1.82–2.15, 1.98. Wing length/profemur length 2.00–2.41, 2.08. Ground coloration pale or yellowish green, with brown vittae and metanotum. Antenna and wing light brown.

Head. Ultimate flagellomere 288–368 µm, 338µm long. AR 0.78–0.94, 0.87. Temporal setae including 4–8, 5 inner, 0–3, 1 outer verticals and 0–2, 1 postorbitals. Clypeus with 9–13, 10 setae. Tentorium 95–110 µm, 105µm long, width 20–30 µm, 24µm. Palpomere lengths (in µm): 20–28, 24; 20–30, 26; 54–70, 63; 70–88, 78; 116–146, 128.

Wing. VR 1.16–1.31, 1.26 and Cu length 496–560 µm, 524µm. Macrotrichia on membrane: R4+ 5 10–31, 25; M1+ 2 2–14, 7; on veins: R 1–9, 4; R4+5 1–3, 2; M1+ 2 3–19, 14.

Thorax. Acrostichals 0–4, 2; dorsocentrals 4–8, 5; prealars 0–2, 1. Scutellum with 0– 5, 2 setae.

Legs. Spur of front tibia 12–22 µm, 18µm. Spurs of middle tibia 18–24 µm, 21 µm and 14–22 µm, 19 µm long, and of hind tibia 18–30 µm, 27 µm and 14–23 µm, 19 µm long. Combs of middle leg composed of 7–12, 10 and 7–12, 10 free teeth, of hind leg composed of 7–14, 10 and 8–12, 11 free teeth.

Lengths and proportion of legs (in µm):

Hypopygium ( Fig. 13) Anal point 26–44 µm, 35 µm long. Phallapodeme 80–94 µm, 84 µm long. Transverse sternapodeme 50–70 µm, 59 µm long. Gonocoxite 100–112 µm, 106 µm long. Superior volsella 24–32 µm, 28 µm long. Digitus 16–24 µm, 21µm long. Inferior volsella 34–50 µm, 41µm long. The stem of median volsella 22–30 µm, 28 µm long. Gonostylus 62–70 µm, 67µm long. HR 1.43–1.81, 1.58; HV 2.70–3.44, 3.05.

Distribution. This species is widely distributed in the Afrotropical Region and is also known from the Palaearctic and Oriental Regions.

Figures

FIGURE 9. Hypopygium of Cladotanytarsus palmatus Wang & Zheng from Wang & Zheng 1993 (Fig. 5).