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Stoneflies - Plecoptera: Chloroperlidae of Gunnison County, Colorado

Introduction to Suwallia - Green Stoneflies

Ricker 1943
Updated 22 May 2016
TSN 103254

Provisional Species list

Suwallia lineosa
Suwallia pallidula
Suwallia starki

Good Links

On this website:
Chloroperlidae Introduction
Identification Keys:
Suwallia Females
Suwallia Males

Other Websites:
Photos, Map, Museum specimens, DNA - Barcodinglife.org


Alexander,KD and Stewart,KW 1997a Further considerations of mate searching behavior and communication in adult stoneflies (Plecoptera); first report of tremulation in Suwallia (Chloroperlidae). In: Ephemeroptera and Plecoptera: Biology-Ecology-Systematics. Eds: Landolt,P; Sartori,M MTL, Fribourg, 107-112.

Alexander,KD and Stewart,KW 1997b The importance of aedeagal characters in species delineation and revision of the stonefly tribe Suwalliini Surdick (Chloroperlidae). In: Ephemeroptera and Plecoptera: Biology-Ecology-Systematics. Eds: Landolt,P; Sartori,M MTL, Fribourg, 484-488.

Alexander,KD; Stewart,KW 1999 Revision of Genus Suwallia Ricker (Plecoptera: Chloroperlidae). Transactions of American Entomological Society 125 3, 185-250.
     This paper describes Suwallia starki (found in our area) among several other new Suwallia species. They study species from North America, Japan and Russia making this an interesting and broader treatment of the genus. This brings the total of Suwallia species up to 23. They include scanning electron microscope images of male genetalia, epiproct, and egg with drawings of the sclerotized rod of aedeagus, female subgenital plate and adult color patterns.

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 171: "Males of the genus Suwallia are characterized by a slender, curved finger-like process projecting inward near the base of each cercus (fig. 487). The epiproct is membranous, with a small hairy, lightly chitinized tip (fig. 488)."
Don't use this key for species identifications anymore, there are many more species than the three common ones they discuss! Use Alexander and Stewart 1999 instead

Ricker,WE 1943. Stoneflies of Southwestern British Columbia. Indiana University Publications, Science Series 12 145 pages, Bloomington, Indiana.

Ricker,WE 1992 Origin of stonefly names proposed by Ricker and collaborators. Perla, 18(1) 12 pages. PDF
      Quote from page 10: "Suwallia Ricker 1943 (as sg. of Alloperla). The Suwállies or Scowillies are a clan of Salish Indians living near Chilliwack, British Columbia. "

Stewart,KW 2001 Vibrational communication (drumming) and mate-searching behavior of stoneflies (Plecoptera); evolutionary considerations. In Trends in Research in Ephemeroptera and Plecoptera (pp. 217-225). Springer US. Stewart,KW and Szczytko,SW 1983 Drift of Ephemeroptera and Plecoptera in two Colorado rivers. Freshwater Invertebrate Biology. 2(3)117-131. PDF

The United States Geological Survey (USGS) National Water Quality Assessment Data Warehouse (NAWQA) shows this genus present in Gunnison County. Data as of 1Sep2005

Brown,WS 2006 Plecoptera or Stoneflies of Gunnison County, Colorado