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Trichoptera: Leptoceridae of Gunnison County, Colorado

Oecetis inconspicua
Plain Red-Brown Long Horn Sedge

(Walker) 1852
Updated 12 Aug 2010
TSN 116613

This caddisfly is found in the lower elevations of the Gunnison Basin and has a widespread distribution in the USA. Leptocerid caddisflies are called "Long Horn" caddis because of long antennae on the larvae. That is, they are very long for a caddisfly :-) Many other aquatic insects have longer antennae.

Good Links

Photos, Map, Museum specimens, DNA - Barcodinglife.org

University of Alberta Entomology Collection Species page
     Has illustration of male genitalia, description, habitat information, range and more.

Photo of adult female http://entweb.clemson.edu/museum/misc/aqua/aqua39.htm

References

Cooper,CM 1980 Effects of abnormal thermal stratification on a reservoir benthic macroinvertebrate community. American Midland Naturalist 103(1) 149-154.
     Abstract: The benthos of Grenada Reservoir, Mississippi, was examined during 1973-1976, when periods of flooding caused abnormally high water levels. The increased water levels resulted in prolonged abnormal hypolimnial stagnation due to lack of normal reservoir drawdown procedures. The stagnation in 1973 caused massive kills of immature Hexagenia bilineata and Oecetis inconspicua larvae in the reservoir conservation pool. Recolonization of the reservoir in 1974 by Hexagenia and Oecetis was unsuccessful due to recurrence of stagnation. The lengthy stagnation changed the structure of the benthic community, and the Hexagenia-Oecetis-Chaoborus-Chironomidae community was replaced by a Limnodrilus-Chaoborus-Chironomidae community. Production initially decreased but later recovered.

Floyd,MA 1995 Larvae of the Caddisfly genus Oecetis (Trichoptera: Leptoceridae) in North America. Ohio Biological Survey, Columbus OH.

Floyd,MA 1992 The biology and distribution of Oecetis larvae in North America (Trichoptera: Leptoceridae). Proceedings of the 7th International Symposium on Trichoptera 1992:87-91.

Walker,F 1852 Catalogue of the Specimens of Neuropterous Insects in the Collection of the British Museum. London : British Museum (1): 1-192.
     Described as Leptocerus inconspicua on pages 71 and 72.

Zullo,S and Bates,N1983 Occurrence of Oecetis inconspicua (Walker) in an acid strip-mine lake of southern Illinois. Trans. IL State Acad. Sci. 72(3-4):293-296.


Brown,WS 2005 Trichoptera (Caddisflies) of Gunnison County, Colorado, USA
www.gunnisoninsects.org