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New Records of Winter Stoneflies (Plecoptera) from Southwestern New Mexico, with Notes on Habitat Preferences and Zoogeographical Origins

Gerald Z. Jacobi and Steven J. Cary
The Southwestern Naturalist
Vol. 31, No. 4 (Nov. 10, 1986), pp. 503-510
DOI: 10.2307/3671704
Stable URL: http://www.jstor.org/stable/3671704
Page Count: 8
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
New Records of Winter Stoneflies (Plecoptera) from Southwestern New Mexico, with Notes on Habitat Preferences and Zoogeographical Origins
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Abstract

A diverse and widespread winter stonefly fauna exists in the mountainous region centered on the Gila National Forest in southwestern New Mexico. Collecting from 1979 through 1984 and access to past collections have vastly increased knowledge of the regional winter stonefly fauna. Important additions include: one new record for New Mexico, Capnia californica (Claassen) 1924; new records for the southwestern four-county area, Isocapnia vedderensis (Ricker) 1943, Taenionema pacificum (Banks) 1902, Capnia fibula Claassen 1924, Prostoia besametsa (Ricker) 1952, and Skwala parallela (Frison) 1936; and new distributional records for several other species, including the recently-described Taenionema sp. A Stanger and Baumann, in press. Based on this recent collection information, zoogeographical and ecological details are offered regarding the role of the study area as part of a refuge for winter stoneflies during the Pleistocene glaciations. Different stream habitat preferences are also exhibited by several species in the area.

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