stoneflies, Plecoptera, Isocapnia, North America, Holarctic
This paper presents descriptions, diagnoses, figures, and keys for 12 western North American species of the Holoarctic genus Isocapnia Banks. Complete known distributional records and a cladistic analysis are included for the Nearctic species. Isocapnia fraseri and I. missourii are synonymized with I. integra, and 3 new species are described: I. eichlini n. sp., I. palousa n. sp., and I. rickeri n. sp. Representatives of 5 of the 7 known Palearctic species of Isocapnia were examined and are compared with the Nearctic species. Type localities and distributional data are listed for all 7 Palearctic species.
Zenger, J. T. and Baumann, R. W.
"The Holarctic winter stonefly genus Isocapnia, with an emphasis on the North American fauna (Plecoptera: Capniidae),"
Monographs of the Western North American Naturalist: Vol. 2
, Article 2.
Available at: http://scholarsarchive.byu.edu/mwnan/vol2/iss1/2