Cryptochironomus blarina Townes

Saether, Ole A., 2009, Cryptochironomus Kieffer from Lake Winnipeg, Canada, with a review of Nearctic species (Diptera: Chironomidae), Zootaxa 2208, pp. 1-24 : 10

Cryptochironomus blarina Townes

Material examined. CANADA: British Columbia, Marion Lake, 1 male, 6 pupal exuviae, 11–22.vii. 1964, A. L. Hamilton. Lake Winnipeg records: Calder’s Dock, 3 males, 14.vii. 1971; South Basin, 1 larva, 1969; Narrows 3 larvae, 1 pupa, 9.vii.–31.x. 1969; North Basin, 3 larvae, 1 pupa, 2–10.ix. 1969.

Only one male intersex with female antenna, LR, of 1.48, about 8 sensilla chaeticae on mid leg and none on hind leg was found. The immatures are described by Curry (1958: 437). The examined pupae are 7.10– 8.26, 7.74 mm (6) long and have 63–80, 70(7) filaments in fringe of anal lobe. The fourth instar larvae have a head capsule length of 0.61–0.69, 0.63 mm (6); the third instar of 0.41 mm (1). The species is known from British Columbia to Ontario and south to New Mexico and Florida ( Oliver et al. 1990: 44).