Paracladopelma laminatum (Kieffer)

Zorina, Oksana V., 2006, Non­biting midges of the genus Paracladopelma Harnisch (Diptera: Chironomidae) from the Russian Far East, Zootaxa 1134, pp. 29-49 : 35-37

Paracladopelma laminatum (Kieffer)

( Figs. 12–13 )

Cladopelma laminata Kieffer, 1921: 64

Chironomus (Cryptochironomus) laminatus (Kieffer) ; Goetghebuer (1937: 34) Paracladopelma laminata (Kieffer) : Lenz (1959: 438); Reiss (1968: 261); Albu (1980: 148) Paracladopelma laminatum (Kieffer) : Saether & Spies (2004)

Material. 1 male, Russia. Primorye Territory, Barabashevka River at about 8 km from Primorskaya Village, 17.VII.1975, leg. L. Zhiltzova; 1 male, Amursk Region, Zavitaya River near railway bridge of route Birobidzhan­Khabarovsk, 1.IX.2004, leg. T. Tiunova.

Male imago (n = 2)

Total length 3.4–3.5 mm. Wing length 2.05–2.10 mm. Total length/wing length 1.62–1.71.

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

Head. Frontal tubercles 23 m long and 9 m wide. Verticals 17–20. Clypeus with 10–12 setae. Antenna 1197 m long. AR 2.0. Maxillary palp 495 m long, lengths of last 4 palpomeres (in m): 50; 99; 158; 189. Antenna length/palp length 2.42.

Thorax. Antepronotals 8, acrostichals 12, dorsocentrals 5, prealars 4, supraalars 1. Scutellum with 8 setae.

Wing. length 1.62–1.71 mm, width 0.59–0.67. VR 1.16–1.20. R with 10–15 setae, R1 with 7–8 setae, R4+5 with 17–19 setae. Squama with 6 setae, brachiolum with 1–2 setae.

Legs. Terminal combs of median and hind tibiae with 1 spur (length 32 m). LR1 1.75, LR2 0.58–0.61, LR3 0.68–0.72; SV1 1.36, SV2 3.52–3.70, SV3 2.82–3.0; BV1 1.81, BV2 3.35–3.38, BV3 2.71–2.72; BR1 2.6, BR2 3.2, BR3 4.5.

Hypopygium ( Figs. 12–13 ). Anal tergite bands of Y­type. Median longitudinal ridge of anal tergite bands present. Anal point (length 63–72 m, width 14 m) widest in apical part. Laterosternite IX with 1–2 setae. Transverse sternapodeme 72 m long. Gonocoxite (length 99–122 m) with 4–5 setae. Superior volsella foot­shaped (length 50 m, width 45 m) with 10–11 setae. Inferior volsella pointed ventromedially (length 90 m, width 54 m). Gonostylus (length 126–144 m, width 27 m) curved, widest medially. HR 0.79–0.84.

Distribution: Holarctic. The species is recorded from Russia for the first time.

Figures

FIGURES 10 – 13. Male imago Paracladopelma jacksoni (10 – 11) and Paracladopelma laminatum (12 – 13). 10, 12. Hypopygia. 11, 13. Superior volsellae. Scale bar = 50 m.