Cryptochironomus curryi Mason

• Main Author: Saether, Ole A.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Chironomidae; Cryptochironomus; Cryptochironomus curryi; Beaver Creek
• Online Access: https://doi.org/10.5281/zenodo.6220744; http://treatment.plazi.org/id/03AA946EFFE5E07913D0FC43FC1CFAFC

Cryptochironomus curryi Mason (Fig. 6 A, B; 8) Cryptochironomus curryi Mason 1986: 404. Cryptochironomus fulvus Curry 1958: 435, Darby 1962:162, nec Johannsen 1905: 224. Material examined . CANADA: Manitoba, Heming Lake, female reared from larva, 2.viii. 1967, A.P. Wiens. Lake Winnipeg record: Beaver Creek, 1 male, 19.viii. 1971. The previously undescribed female is characterized by a wing length of about 2.4 mm, LR l of about 1.7, and absence of frontal tubercles. Male imago The hypopygium is illustrated by Darby (1962, fig. 49) and Mason (1986 fig. 2). Female imago (n = 1) Total length 4.93 mm. Wing length 2.42 mm. Total length/Wing length 2.03. Wing length/length of profemur 2.40. Head . AR 0.48. Temporals 21. Clypeus with 22 setae. Frontal tubercles absent. Palp lengths (microns): 37, 73, 267, 143, 240. Thorax . Antepronotum with 9 setae. Dorsocentrals 33, acrostichals 21, prealars 6. Scutellum with 29 setae. Wing . VR 1.11. Brachiolum with 2 setae, R with 27, R1 with 23, R4+5 with 55 setae. Squama with 24 setae. Legs . Sensilla chaeticae 25 on mid leg, 11 on hind leg. Lengths and proportions of legs as in Table 4. fe ti ta1 ta2 ta3 ta4 ta5 LR BV SV BR p1 1009 714 1227 558 469 394 170 1.72 1.85 1.40 2.20 p2 874 832 503 252 190 120 83 0.60 3.42 3.39 2.64 p3 925 1126 748 340 286 167 110 0.66 3.10 2.74 4.58 Genitalia (Fig. 8 A). Cercus 113 µm long. Gonocoxite IX bare. T IX with 58 setae. Segment X with 4 setae on each side. Notum 210 µm long. Seminal capsules 110 µm long, 67 µm wide. Pupa (n = 1) Total length 6.5 mm (7.0 mm in Curry 1958:435, table 4). Cephalothorax . Cephalic tubercles (Fig. 6 B) fused at base, 418 µm long (500 µm in Curry, 590–648 µm in Mason), 350 µm wide at base; main branch 124 µm long, 68 µm wide below lateral branch, 25 µm wide below frontal seta; lateral branch 95 µm long; frontal seta 70 µm long. Abdomen (Fig. 6 A). Tergites and sternites not reticulated. Shagreen and chaetotaxy as illustrated. Caudal margin of T II with 38–41 hooklets to each side of 90 µm (Curry) – 200 µm wide mesal ...