Introduction to the Amphinemura of Gunnison County, Colorado

Stoneflies - Plecoptera: Nemouridae of Gunnison County, Colorado

Introduction to Amphinemura

Ris 1902

Updated 25 July 2009

Species List

Amphinemura banksi

Notes

The genus Ampinemura is holarctic (found all the way around the northern hemisphere).

Good Links

On this website:
Amphinemura linda
Introduction to the Nemouridae

Other Websites:
PAN Pesticides database: http://www.pesticideinfo.org/List_AquireAll.jsp?Species=5144∓Effect=

References

Baumann,RW; Gaufin,AR 1972 The Amphinemura venusta complex of western North America. Contributions of the Science and Natural History Museum 226, 1-16.

Baumann,RW, Gaufin,AR and Surdick,RF 1977 The stoneflies (Plecoptera) of the Rocky Mountains. Memoirs of the American Entomological Society 31, 1-208.
     Quote from page 21: "Amphinemura species are not common in the Rocky Mountains except in certain localities in the central and southern divisions. Except for Amphinemura linda which has holarctic affinities, all the species belong to the Amphinemura complex (Baumann and Gaufin, 1972). This complex is endemic to western North America and is found only in the Rocky Mountains and the Sierra Madre Mountains of Mexico.
The nymps of Amphinemura seem to require clean, cold water that runs throughout the year. To date no collections have been made in intermittant streams that flow only in the winter and early spring as is common for species of Capniidae that exist over the same geographical range."

Ris, 1902 Die schweizerischen Arten der Perliden-Gattung Nemura. Mitteilungen der SSchweizerischen entomologischen Gesellschaft 10(9):378-405
     The genus Amphinemura is described on page 384.

Ruse,LP; Herrmann,SJ 2000 Plecoptera and Trichoptera species distribution related to environmental characteristics of the metal-polluted Arkansas River, Colorado. Western North American Naturalist 60 1, 57-65.

Stewart,KW and Ricker,WE 1997 The stoneflies of the Yukon. pgs 201–222 in Danks,HV and Downes,JA (Eds.), Insects of the Yukon. Biological Survey of Canada (Terrestrial Arthropods), Ottawa. 1034 pp.
     Quote from page 209: "Holarctic and Oriental; 13 Nearctic species with only 2, A. delosa (Ricker) and A. linda (Ricker), widespread in the west. Adults small, dark, less than 10mm. Emergence variable by species; western species emerge June-September. Nymphs occur only in permanent streams. Eastern species are detritovores and have univoltine life cycles; no definitive life-history or ecological studies have been reported for the 8 western species that occur mostly in the Southwest and Mexico. "

Stewart,KW and Stark,BP 2002 Nymphs of North American Stonefly Genera. 2nd edition The Caddis Press, Columbus, Ohio. 510 pages.
     Quote from page 183 "Diagnostic Characters: Four AT gills, each minimally 5-branched, with branches originating equally from a common basal trunk and nevr secondarily branched is a character sufficient to distinguish Amphinemura nymphs. Zapada gills are either simple or no more than 4-branched, Malenka gills arise palmately (unequal orgin from a near basal trunk), and are sometimes secondarily branched, and Nanonemoura gills are palmately 3- or less branhced well above their base. "

Brown, Wendy S. 2004 Plecoptera or Stoneflies of Gunnison County, Colorado
www.gunnisoninsects.org

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