Two New Species of Protanypus Kieffer, with Keys to Nearctic and Palaearctic Species of the Genus (Diptera: Chironomidae)

• Published in: Journal of the Fisheries Research Board of Canada
• Main Author: Sæther, Ole A.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1975
• Subjects: General Medicine; Great Slave Lake
• Online Access: http://dx.doi.org/10.1139/f75-044; http://www.nrcresearchpress.com/doi/pdf/10.1139/f75-044

Two Nearctic species of Protanypus are described: Protanypus ramosus n.sp. from imagines, pupae, and fourth-, third-, and second-instar larvae; Protanypus hamiltoni n.sp. from male imagines, pupae, and fourth-, third-, and second-instar larvae. The larvae of two other species are described. These are the first published descriptions of Nearctic imagines of the genus.Keys are given for male imagines, pupae, and known larvae of the Nearctic and Palaearctic species of the genus.Protanypus ramosus occurs in several oligotrophic and oligohumic to weakly polyhumic lakes in northwestern Ontario, in Algonquin Park, and in the Great Lakes. Protanypus hamiltoni is found in three deep and large, oligotrophic lakes in British Columbia and in Great Slave Lake. Both species are bivoltine. Protanypus sp. A occurs in Marion Lake, British Columbia, a small oligotrophic lake. Protanypus sp. B is found in George Lake, La Cloche Mountain Region, Ontario, an acidified oligotrophic lake.