Difference between revisions of "Zealeuctra cherokee"
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Latest revision as of 13:53, 22 October 2013
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Ordo: Plecoptera
Familia: Leuctridae
Genus: Zealeuctra
Name
Zealeuctra cherokee Stark & Stewart – Wikispecies link – Pensoft Profile
- Zealeuctra cherokee Stark & Stewart, 1973: 192. Holotype ♂ (USNM), 2 mi W Vian, Sequoyah Co., Oklahoma
Description
Male - abdominal tergal cleft. Anterior portion U-shaped and very broadly rounded, posterior portion narrowing distally to a pair of medial projections, the terminal projection larger, subtruncate, and thumb-like, the subterminal projection smaller and subtriangular (Fig. 2A). Crenulations absent from inner margins of cleft.
Male - epiproct. Broad at base, extending posteriorly along one plane then extended abruptly and dorsally at a ca. 90 degree angle (Fig. 2B), spine tip slightly recurved anteriorly. No accessory spine or cusp present.
Female - 7th sternum. Seventh sternum with a small, subtriangular lobe nested in a distinct central notch (Fig. 2C).
Material examined
USA, Arkansas: Perry Co., Greathouse Creek, Hwy 216, 3 mi NE Thornburg, 34.9574, -92.7545, 7.IV.1984, B.C. Poulton, ♂ (CSUC); Sebastian Co., tributary to Sugar Creek, 5 mi SW Hartford, 17.II.1985, B.C. Poulton, ♂, ♀ (BYUC). Oklahoma: Adair Co., 9 mi S Stillwell, Hwy 59, 35.6917, -94.6691, 20.II.1972, B.P. Stark, 4♂, 5♀ (Paratypes, BPSC).
Distribution
USA: AR, OK (DeWalt et al. 2012[1])
Remarks
The cleft and epiproct spine of the male of this species are very similar to that of Zealeuctra narfi. The major difference for Zealeuctra cherokee is the presence of the posterior thickening along the recurved portion of the epiproct spine, and additionally, the subtruncate terminal medial processes at the posterior end of the cleft. The ranges of these two species broadly overlap in Arkansas and eastern Oklahoma (Fig. 14; Poulton and Stewart 1991[2]).
Taxon Treatment
- Grubbs, S; Kondratieff, B; Stark, B; DeWalt, R; 2013: A review of the Nearctic genus Zealeuctra Ricker (Plecoptera, Leuctridae), with the description of a new species from the Cumberland Plateau region of eastern North America ZooKeys, 344: 17-47. doi
Other References
- ↑ DeWalt R, Neu-Becker U, Steuber G (2012) Plecoptera species file online. Version 1.1/4.0. http://Plecoptera.SpeciesFile.org [accessed on 2 April 2012]
- ↑ Poulton B, Stewart K (1991) Stoneflies of the Ozark and Ouachita Mountains (Plecoptera). Memoirs of the American Entomological Society 13: 1-116.
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