Plecoptera: Chloroperlidae of Gunnison County, Colorado
Alloperla thaliaRicker, 1952
Updated 22 May 2016
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ReferencesBaumann,RW and Kondratieff, BC 2008 The Alloperla severa complex (Plecoptera: Chloroperlidae) of western North America. Illiesia 2008 4(6):66-75. PDF
The authors split A. severa into three species A. severa, A. elevata and A. thalia. A. severa is restricted to northern North America. Alloperla thalia is present in Colorado and may be the species we have been calling A. severa.
Ricker, WE 1952. Systematic studies in Plecoptera. Indiana University Publications, Science Series 18, 200 pages, Bloomington, Indiana.
First description of this insect.
Ricker,WE 1992 Origin of stonefly names proposed by Ricker and collaborators. Perla, 18(1) 12 pages. PDF
Quote from page 3: "*thalia Ricker 1952. Syn. severa Hagen. Thalia is the Muse of comedy, but I have forgotten what was amusing here. Hagen's name is evidently from Russian sever = north, the type being from the "Island of Unga, Russian America"."
Brown,WS 2011 Stoneflies (Plecoptera) of Gunnison County, Colorado, USA