Paracladopelma undine (Townes)

Zorina, Oksana V., 2006, Non­biting midges of the genus Paracladopelma Harnisch (Diptera: Chironomidae) from the Russian Far East, Zootaxa 1134, pp. 29-49 : 44

Paracladopelma undine (Townes)

( Figs. 25–26 )

Harnischia (Cladopelma) undine Townes, 1945: 149 ; Roback (1957: 102) Chironomus (Cryptochironomus) undine (Townes) ; Sublette & Sublette (1965: 168) Paracladopelma undine (Townes) ; Beck & Beck (1969: 302)

Material. 1 male, Russia, Khabarovsk Territory, Khingan River near railway bridge, 28.VII.2003, leg. O. Zorina; 1 male, Sakhalin Island, Lutoga River near Vysokoe Village, 25–26.VII.2001, leg. E. Makarchenko; 3 males, Leonidovka River 8 km below Leonidovo Village, 9–10.VIII.2001, leg. E. Makarchenko; 1 male, Avgustovka River 13 km from Boshnyakovo Village, 23.VII.2003, leg. E. Makarchenko; 1 male, Nayba River about 5 km from Bikovo Village, 17.VII.2003, leg. E. Makarchenko.

Male imago (n = 6)

Wing length 1.6–2.1 mm.

Coloration. Scape yellow, flagellomeres dark brown; ground color of thorax pale yellow, mesonotal stripes yellow or yellowish brown, 2/3 of postnotum brown; P1 yellow, except brown on distal end f1 and t1, ta1–5; P2 and P3 yellowish, except f2 and f3 brownish on distal 1/3 and t2 and t3 brownish on proximal end, ta1–5 gradually darkened toward apex; abdomen yellowish.

Head. Frontal tubercles 13.5–18 m long and 4.5–6.75 m wide. Verticals 17. Clypeus with 12–15 setae. Antenna 931–1083 m long. AR 1.58–1.71. Maxillary palp 356–491 m long, lengths of last 4 palpomeres (in m): 32–54; 90–117; 99–135; 135–194. Palp length/head width 0.72–0.99; antenna length/palp length 2.17–2.78.

Thorax. Antepronotals 3, acrostichals 9–13, dorsocentrals 4–9, prealars 2–5, supraalars 1. Scutellum with 7–9 setae.

Wing. Length 1.6–2.1 mm, width 0.48–0.59. VR 1.15–1.23. R with 7–11 setae, R1 without setae, R4+5 with 11–14 setae. Squama with 2–4, brachiolum with 1–2 setae.

Legs. Terminal combs with 2 spurs (length 18 m). LR1 1.77–1.84, LR2 0.56–0.60, LR3 0.62–0.68; SV1 1.25–1.41, SV2 3.52–3.84, SV3 2.93–3.21; BV1 1.72–1.84, BV2 3.43–3.81, BV3 2.82–2.95; BR1 2.6–3.0, BR2 4.0, BR3 4.0–5.0.

Hypopygium ( Figs 25–26 ). Median longitudinal ridge of anal tergite bands present (Y­type). Anal point (length 54–63 m, width 12–14 m) widest in apical 1/3. Laterosternite IX with 1–2 setae. Transverse sternapodeme 54 m long. Gonocoxite (length 77–90 m) with 3–4 setae. Superior volsella foot shaped (length 41–45 m, width 36–45 m) with 8–10 setae. Inferior volsella quadrate, apically rounded (length 77–90 m, width 27–45 m). Gonostylus (length 144–162 m, width 23 m) almost straight, apically pointed. HR 0.53–0.61.

Distribution. Holarctic species. In the Palaearctic Region, it occurs in Western Europe ( Saether et al. 2000) and the Russian Far East ( Makarchenko et al. 2005). It is recorded from Russia for the first time.

Figures

FIGURES 25 – 28. Male imago Paracladopelma undine (25 – 26) and Paracladopelma urkanensis sp. nov. (27 – 28). 25, 27. Hypopygia. 26, 28. Superior volsellae. Scale bar = 50 m.