Cryptochironomus imitans Saether, 2009, sp. n.

• Main Author: Saether, Ole A.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Chironomidae; Cryptochironomus; Cryptochironomus imitans; Beaver Creek
• Online Access: https://doi.org/10.5281/zenodo.6220742; http://treatment.plazi.org/id/03AA946EFFF9E07F13D0FC56FB19FCAC

Cryptochironomus imitans sp. n. (Fig. 4 B–D; 7) Cryptochironomus sp. n. A, Chang et al. 1993. Cryptochironomus sp. n. C, Chang et al. 1994. Type material . Holotype male, CANADA: Quebec, Gatineau Park, Lusk Cave, reared from larva, on logs in pool inside cave, 29.vi. 1966, A.L. Hamilton and J. Martin (CNC). Paratypes: CANADA: Manitoba, Pinawa, Winnipeg River, female reared from larva, 2.vii 1967, J. Ireland; Ontario, Lake Ontario, Bay of Quinte, Halton, male reared from pupa, 29.vii. 1968, W.F. Warwick; Ontario, Kenora, Experimental Lakes Area, Lake 172, mature male pupa, 26.vii 1968, S.S. Chang; Lake Winnipeg records: Pine Dock, 20 males, 10. & 31.vii. 1969; 3 km off Grand Rapids, 1 male, 13.vii. 1969; 10 km off (Sturgeonskin) Long Point, 3 males, 14.vii. 1969; Gull Harbour, 1 males, 16.vii. 1969; Victoria Beach, 3 males, 25.vii. 1969; Grand Rapids Government Wharf, 5 males, 28.vii. 1969; Beaver Point, 2 males, 30.vi.–19.viii. 1971; Old Fishing Dock, 8 males, 29.vi.– 18.viii. 1971; Hecla Island, 2 males, 24 & 25.viii. 1971; Beaver Creek, 1 male, 8.vi. 1971; 3 km southeast Bushgega Island, 1 male, 31.vii. 1969; North Basin, 1 larva, 9.vii. 1969. Diagnostic characters . The imagines are characterized by a wing length of 2.02–2.81, male AR of 2.52– 3.05, LR1 of 1.56–1.83, presence of as long as wide to twice as is long as wide frontal tubercles or at least of ocelli, and hypopygium of C. fulvus type. The female has 7 sensilla chaeticae on mid leg, 3 on hind leg; gonocoxite IX without setae; and segment X with 3 setae on each side. The pupa is 5.1–6.3 mm long; has a simple 0.10–0.14 mm long cephalic tubercle with 31–60 µm long frontal seta; T I with distinct, T II–III with weak, and T IV–VI with barely indicated reticulation; caudal spines on T II–VII or VIII and S II–VIII; and 39–52 filaments in fringe of anal lobe. The fourth instar larva has a head capsule length of about 0.43–0.44 mm, a postmentum length of about 160–180 µm, ventromental plates 2.6–2.7 times as wide as long, AR of 1.0–1.2, and apical ...