Plecoptera: Perlodidae of Gunnison County, ColoradoIntroduction to Isoperla
Green-winged stonefliesBanks 1906
Updated 27 Feb 2007
Provisional Species List
Isoperla fulva
Isoperla jewetti
Isoperla longiseta
Isoperla mormona
Isoperla phalerata
Isoperla pinta
Isoperla quinquepunctata
Isoperla sobria
Notes
A key for Isoperla nymphs has not been developed yet.
Good Links
On this website:
Perlodidae Introduction
Other Websites:
University of Alberta Entomology Collection Species page
Has a photo of a larvae, description, habitat information, range and more.
PAN Pesticides database: http://www.pesticideinfo.org/PCW/List_AquireAll.jsp?Species=1172
References
Baumann, RW Gaufin, AR, Surdick, RF 1977 The stoneflies (Plecoptera) of the Rocky Mountains. Memoirs of the American Entomological Society 31, 1-208.
Quote from page 135: "The two subfamilies of Perlodidae are often difficult to separate, except on the basis of male genitalia. Isoperlinae exhibits a loss of the epiproct and the lobe on the seventh sternum, a retention of the lobe on the eighth sternum, and a modification of the subanal lobes into hooks (figs. 417, 419). Gills and gill remnants are always lacking in the Isoperlinae, but are retained as simple filaments in some representatives of the Perlodinae. A transverse ridge and posterior junction of the Y-ridges to the furcal pits charaterize the typical mesosternal ridge pattern of adults and immatures (figs. 24, 25). Adults of the subfamily are yellow or brown colored and generally smaller than their Perlodinae counterparts. Nymphs are often brightly striped in brown and yellow. Nymphal abdominal color patterns, adult genitalia and setal patterns are used to differentiate species. Isoperla is the only genus of Isoperlinae recorded from the Rocky Mountains."
DeWalt,RE; Stewart,KW 1995 Life histories of stoneflies (Plecoptera) in the Rio Conejos of southern Colorado. Great Basin Naturalist 55, 1-18.
DeWalt,RE; Stewart,KW; Moulton,SR; Kennedy,JH 1994 Summer emergence of mayflies, stoneflies, and caddisflies from a Colorado mountain stream. Southwestern Naturalist 39 3, 249-256.
Dodds GS; Hisaw FL. 1925. Ecological studies on aquatic insects. IV. Altitudinal range and zonation of mayflies, stoneflies and caddisflies in the Colorado Rockies. Ecology 6(4)380-390. Abstract
Fuller,RL; Stewart,K,W 1977 The food habits of stoneflies (Plecoptera) in the Upper Gunnison River, Colorado. Environmental Entomology 6, 293-302.
Peckarsky,BL 1986 Colonization of natural substrates by stream benthos. Canadian Journal of Fisheries and Aquatic Sciences 43, 700-709.
Richardson,JW; Gaufin,AR 1971 Food habits of some western stonefly nymphs. Transactions of American Entomological Society 97, 91-121.
Sandberg,JB; Stewart,KW 2001 Drumming behavior and life history notes of a high-altitude Colorado population of the stonefly Isoperla petersoni Needham & Christenson (Plecoptera: Perlodidae). Western North American Naturalist 61 4, 445-451.
Szczytko,SW; Stewart,KW 1979a The genus Isoperla (Plecoptera) of western North America; holomorphology and systematics, and a new stonefly genus Cascadoperla. Memoirs of the American Entomological Society 32, 1-120.
Szczytko,SW; Stewart,KW 1979b Three new species of nearctic Isoperla (Plecoptera). Great Basin Naturalist 36, 211-220.
Illustrations
Mesosternal Y-arms.
Only visible easily on mature nymphs. |
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