Trichoptera: Limnephilidae of Gunnison County, ColoradoPhilarctus quaeris(Milne, 1935)Updated 28 February 2026
TSN 116397 Good LinksOn this website:Introduction to the Limnephilidae Other Websites: Photos, Map, Taxon Identifier Numbers - from the Global Biodiversity Information Facility Philarctus quaeris at GBIF University of Alberta Entomology Collection - Species page Has a description, habitat information, range and more. ReferencesDriver,EA; Sugden,LG and Kovach,RJ 1974 Calorific, chemical and physical values of potential duck foods. Freshwater Biology 4 (3), 281-292.Herrmann,SJ; Ruiter,DE and Unzicker,JD 1986 Distribution and records of Colorado Trichoptera. Southwestern Naturalist 31(4), 421-457. Notes this species is found in Gunnison County. Nimmo,A 1971 The adult Rhyacophilidae and Limnephilidae (Trichoptera) of Alberta and eastern British Columbia and their post glacial origin. Quaestiones Entomologicae 73: 3-234. Ross,HH and Merkley,DR 1952 An annotated key to the nearctic males of Limnephilus (Trichoptera, Limnephilidae). American Midland Naturalist 47:435-455. Quote from page 436: "Two genera of the Limnephilus complex seem to represent phylogenetic units definitely apart from the large aggregation of Limnephilus itself. These are Philarctis and Lenarchus. Philarctus was described by McLachlan in 1880 with P. bergrothi McLachlan as genotype by monotypy. In general appearance it is remarkably like Limnephilus janus and allies but differs from this group and all other species of Limnephilus in its extremely disctinctive male genitalia and in having a row of black preapical spines on the anterios face of the frnt femur. It also lacks the interocellar macrochaetae typical of most Limnephilus. The only North American species is quaeris (Milne), which is extremely close to bergrothis but differs in a few details from McLachlan's drawings. Until it is possible to compare Eurasian and North American material of these two species, it seems better to hold them as distinct."  Wiggins,GB 1963 Larvae and pupae of two North American limnephilid caddisfly genera (Trichoptera: Limnephilidae). Bulletin of the Brooklyn Entomological Society 58(4):103-112. Describes the larvae. 
Zuellig,RE; Heinold,BD; Kondratieff,BC and Ruiter,DE 2012 Diversity and Distribution of Mayflies (Ephemeroptera), Stoneflies (Plecoptera), and Caddisflies (Trichoptera) of the South Platte River Basin, Colorado, Nebraska, and Wyoming, 1873-2010. U.S. Geological Survey Data Series 606, 257 p. PDF Quote from page 92: "The only records available from the SPRB for this species are from the South Park area of Colorado. Nimmo (1971) reported this species from ponds on the plains and low mountain valleys in Alberta. SPRB specimens were collected only from much higher elevations above 8,950 ft." The elevation range is 8,950-9,950 feet and the adults fly from August-September. Brown, WS 2007 Trichoptera (Caddisflies) of Gunnison County, Colorado, USA www.gunnisoninsects.org "I don't care that they stole my idea; I care that they don't have any of their own." -- Nikola Tesla |