Polypedilum (Uresipedilum) Oyewo and Saether from China (Diptera: Chironomidae) Author Zhang, Ruilei Author Wang, Xinhua text Zootaxa 2004 2004-07-14 565 1 1 38 https://biotaxa.org/Zootaxa/article/view/zootaxa.565.1.1 journal article 4804 10.11646/zootaxa.565.1.1 d3a29685-2703-4df5-9f16-2766bb5dd803 1175­5334 5030339 Polypedilum ( Uresipedilum ) paraviceps Niitsuma ( Fig. 11 ) Polypedilum ( Uresipedilum ) paraviceps Niitsuma, 1992: 703 . Material examined: 2 males , CHINA : Fujian Province , Yongtai County , Light trap . 16. 17. 19. IX. 2002 ; Z. Liu . Diagnostic characters: Differs from other members of the subgenus in having a ventral subapical tubercle on the inferior volsella. Male imago (n = 2, except when otherwise stated) Total length 2.51–2.70 mm. Wing length 1.32–1.46. Total length/ wing length1.85– 1.90. Wing length /length of profemur 2.04–2.06. Coloration . Body entirely yellow except pale brown fore tarsi. Wing pale. Head . AR 1.68–1.73. Ultimate flagellomere 546–599 m long. Temporal setae 9–11; including 3–3 inner verticals; 4–5 outer verticals and 2–3 postorbitals. Clypeus with 13–15 setae. Tentorium 117–120 m long, 26–29 m wide. Palpomere lengths (in m): 29–31; 31–39; 101–120; 101–117; 161–195. Wing ( Fig. 11A ). VR 1.21–1.27. Brachiolum with 1 setae, R with 15–16; R 1 with 10– 12, R 4+5 with 20–25. Squama with 5–9 setae. Thorax . Dorsocentrals 7(1); acrostichals 11–12; prealars 4–4. Scutellum with 9(1) setae. Legs . Terminal scale ( Fig.11B ) of front tibia oval, 26–29 m long; spur on median tibiae 44–52 µm long including 23–26 m long comb, un­spurred comb 23–25 m long, spur on posterior tibia 52–55 m long including 26–29 m long comb, un­spurred comb 23–25 m long. Width at apex of front tibia 36–39 m , of middle tibia 42–57 m , of hind tibia 47– 49 m . Lengths (in m) and proportions of legs ( Table 11 ): TABLE 11. Polypedilum ( Uresipedilum ) paraviceps Niitsuma. Lengths of legs (in m).
fe ti ta1 ta2 ta3 ta4 ta5 LR
p1 641714 399462 714792 536609 357420 284326 137147 1.711.78
p2 714756 578620 326339 191212 138154 90106 6472 0.550.56
p3 725819 630704 515557 244284 212242 133158 7480 0.730.88
Hypopygium ( Figs.11C–F ). Anal tergite bands fused basal to median anal tergite setae. Anal tergite with 5–6 median setae, laterosternite with 2–3 setae. Anal point broad 40–50 m long, tapering to rounded apex. Phallapodeme 60–75 m long; transverse sternapodeme 30–35 m long. Gonocoxite 100–118 m long. Superior volsella 28–38 m long, strongly projected posteriorly, base with 3 inner setae and 1–2 apical setae; apicomedial projection 30–33 m long, pointed at apex. Inferior volsella 70–75 m long with 17–19 oral setae, not swollen laterally but ventrally with a subapical tubercle bearing one long seta extends caudally. Gonostylus 125–130 m long. HR 0.80–0.94. HV 1.93–2.16.
Distribution: The species is distributed in Japan and Southeast China (Oriental Region). Remarks : The species resembles P . ( U .) aviceps , but differs from the latter as follows: Apicomedial projection of superior volsella much longer in P . ( U .) paraviceps ; apex of superior volsella strongly projecting posteriorly in P . ( U .) paraviceps , straight in P . ( U .) aviceps ; inferior volsella of P . ( U .) paraviceps with subapical ventral tubercle, without in P . ( U .) aviceps ; oral setae of inferior volsella in P . ( U .) paraviceps situated on a tubercle, scattered in P . ( U .) aviceps . In the Chinese material examined, one specimen has a superior volsella ( Fig. 11D ) with one apical seta but the others have two apical setae ( Fig. 11C ).