Polypedilum (Uresipedilum) prominens Zhang & Wang 2004, sp. n.
Creators: name: Zhang, Ruilei
name: Wang, Xinhua
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Polypedilum
Polypedilum prominens

description: Polypedilum (Uresipedilum) prominens sp. n.
(Fig. 12)
Type material: Holotype male (BDN No.02191): CHINA: Fujian Province, Wuyi Mountains Natural Conservation, Sangang, 25. IV. 1993, X. Wang, light trap. Paratype: 4 males. 1 male, Fujian Province, WuYi Mountains Natural Conservation, Tongmu, 27 IV 1993, X. Wang. 2 males, Hainan Province, Changjiang County, Bawangling Natural Conservation, 11. V. 1989, X. Wang. 1 male, Guizhou Province, Fanjing Mountains Natural Conservation, Huoguo Temple, 2. VIII. 2001, R. Zhang, light trap.
Etymology: From Latin, prominens, process, refers to having a large subapical projection on inferior volsella.
Diagnostic characters: Differs from other members of the subgenus by having a big process arising ventrally from the inner margin of the apex of the inferior volsella, which is unique within the subgenus.
Male imago (n = 5)
Total length 2.56–3.08, 2.92 mm. Wing length 1.34–1.86, 1.64 mm. Total length/ wing length 1.58–1.97, 1.79. Wing length /length of profemur 1.93–2.43, 2.14.
Coloration. Head, thorax and legs yellow. Abdominal segments pale yellow except anal point yellow brown.
Head. AR 1.43–1.60, 1.50. Ultimate flagellomere 515–620, 582 m long. Temporal setae 10–11, 11; including 3–4, 3 inner verticals; 4–5, 4 outer verticals and 2–3, 3 postorbitals. Clypeus with 13–15, 14 setae. Tentorium 117–133, 125 m long, 29–36, 34 m wide. Palpomere lengths (in m): 31–39, 36; 31–39, 34; 107–122, 115; 86–114; 138–216, 174.
Wing (Fig. 12A). VR 1.20–1.26, 1.23. Brachiolum with 1 seta, R with 17–21, 18; R 1 with 15–17, 16; R 4+5 with 23–28, 25. Squama with 7–10, 9 setae.
Thorax. Dorsocentrals 8–11, 10, uniserial; acrostichals 8–11, 9; prealars 4–5, 4. Scutellum with 9–10, 10 setae.
Legs. Terminal scale (Fig. 12B) of front tibia oval, 21–29, 26 m long; spur on median tibiae 44–52, 48 µm long including 21–29, 25 m long comb, un­spurred comb 21–26, 24 m long, spur on posterior tibia 47–55, 53 m long including 26–29, 27 m long comb, un­spurred comb 21–26, 23 m long. Width at apex of front tibia 47–55, 52 m, of middle tibia 42–57, 52 m, of hind tibia 47–60, 53 m. Lengths (in m) and proportions of legs (Table 12):
Hypopygium (Figs. 12 CE). Anal tergite bands fused basal to median anal tergite setae. Anal tergite with 6–9, 7 strong median setae; laterosternite with 2–3, 3 setae. Anal point 42–60, 53 m long slightly attenuated in the middle. Phallapodeme 60–86, 75 m long; transverse sternapodeme 28–42, 34 m long. Gonocoxite 122–138, 131 m long. Superior volsella 39–49, 44 m long, with pronounced heel and microtrichiae at apex, base with a long apical seta and 0–1 inner seta, apicomedial projection slender and pointed at apex. Inferior volsella 93–112, 102 m long, apically swollen, with 11–14 setae at apex and a large, subapical process which descends medially. Gonostylus 125–146, 131 m long with 8 setae along inner margin and 3 apical setae. HR 0.95–1.02, 0.97. HV 2.02–2.42, 2.17.
Distribution: The species was collected by light trap in the subtropical mountain areas of three south Chinese provinces (Oriental China).
description: Published as part of Zhang, Ruilei & Wang, Xinhua, 2004, Polypedilum (Uresipedilum) Oyewo and Saether from China (Diptera: Chironomidae), pp. 1-38 in Zootaxa 565 (1) on pages 29-31, DOI: 10.11646/zootaxa.565.1.1, http://zenodo.org/record/5030339