Polypedilum (Uresipedilum) crassiglobum sp. n.

(Fig. 5)

Type materia l: Holotype male (BDN No.02191): CHINA: male, Guizhou Province, Fanjing Mountain Natural Conservation, Huoguo Temple, 2. VIII. 2001, R. Zhang . Paratype: 3 males, Guizhou Province, Jiangkou County, 27. VII. 2001, R. Zhang .

Etymology: From Latin crassu, stout and globus, round as a ball, refers to the shape of inferior volsella.

Diagnostic characters: Differs from other members of the subgenus in having 4–5 inner setae on the superior volsella and a parallel­sided inferior volsella.

Male imago (n = 4 except when otherwise stated)

Total length 2.70–2.92, 2.83 mm. Wing length 1.50–1.60, 1.55 mm. Total length/ wing length1.80–1.89, 1.83. Wing length /length of profemur 1.85–1.98, 1.92.

Coloration. Entirely yellow except brown fore tarsi.

Head. AR 1.13–1.28, 1.20. Temporal setae 9–11, 10; including 3–3, 3 inner verticals; 4–5, 5 outer verticals and 2–3, 2 postorbitals. Clypeus with 10–14, 13 setae. Tentorium 117– 115, 121 m long, 33–45, 39 m wide. Palpomere lengths (in m): 34–36, 35; 33–45, 38; 117–138, 129; 103–130, 117; 195–205, 200.

Wing (Fig. 5A). VR 1.23–1.35, 1.29. Brachiolum with 1 setae, R with 17–20, 18; R 1 with 12–18, 15; R 4+5 with 22–30, 26. Squama with 6–9 (2) setae.

Thorax. Dorsocentrals 10–14, 12; acrostichals 13–19, 16; prealars 4–4, 4. Scutellum with 11–12, 12 setae.

Legs. Terminal scale (Fig. 5B) of front tibia oval, 23–30, 26 m long; spur on median tibiae 48–55, 51 µm long including 23–28, 26 m long comb, un­spurred comb 23–26, 24 m long, spur on posterior tibia 55–57, 56 m long including 29–31, 30 m long comb, un­spurred comb 23–28, 26 m long. Width at apex of front tibia 49–52, 50 m, of middle tibia 49–55, 51 m, of hind tibia 55–62, 58 m. Lengths (in m) and proportions of legs (Table 5):

Hypopygium (Figs. 5C–F). Anal tergite bands fused basal to median anal tergite setae. Anal tergite with 10–12, 11 strong median setae, laterosternite with 2–4, 3 setae. Anal point 48–60, 52 m long, gradually tapering to nearly parallel­sided towards apex. Phallapodeme 62–90, 79 m long; transverse sternapodeme 34–39, 37 m long. Gonocoxite 125–143, 135 m long. Superior volsella 39–43, 41 m long, base with 45 inner setae and 1 apical seta, microtrichiae present at apex; apicomedial projection 21–29, 25 m long. Inferior volsella 68–78, 75 m long, parallel­sided for entire length with 11–13 oral setae and a prominent apical seta. Gonostylus 117–133, 125 m long. HR 1.04–1.24, 1.12. HV 2.03–2.49, 2.27.

Distribution: The species was collected by light trap in a subtropical mountain area in Guizhou Province (Oriental Region).

Remarks: The species closely resembles P. (U.) convictum (Walker) but differs in several characters. Superior volsella with 4–5 inner setae in P. (U.) crassiglobum sp. n, 1–3 in P. (U.) convictum; apex of superior volsella straight in P. (U.) crassiglobum sp. n, projecting posteriorly in P. (U.) convictum; apex of inferior volsella rounded and swollen in P. (U.) crassiglobum sp. n, slender and pointed in P. (U.) convictum . The shape of the superior volsella also is similar to P. (U.) annulatum and P. (U.) platum, but the species can be distinguished from those by the coloration pattern.