Difference between revisions of "Zealeuctra talladega"

Latest revision as of 13:53, 22 October 2013

Taxonavigation

Ordo: Plecoptera
Familia: Leuctridae
Genus: Zealeuctra

Name

Zealeuctra talladega Grubbs – Wikispecies link – Pensoft Profile

• Zealeuctra talladega Grubbs, 2005: 40. Holotype ♂ (INHS), tributary to Barbaree Creek, 22 km E Talladega, Clay Co., Alabama

Description

Male - abdominal tergal cleft. Anterior portion is near parallel-sided, U-shaped, and broadly rounded along anterior margin (Figs 7A–C). Posterior portion is somewhat V-shaped and sinuous along inner margins, posterior terminus marked by either a single (Fig. 7C) or paired (Figs 7A–8B) medially-directed subtriangular projections. Crenulations absent from inner margins of cleft..
Male - epiproct. Base very broad and subquadrate in shape, narrowing to anteriorly-recurved and broadly tapering terminal spine, no accessory spine present although a small subterminal posterior nub may be present (Figs 7D–F). Subquadrate base varies from rounded broadly to right angular in shape. No accessory spine or cusp present, but a minute, very low, medially-positioned hump is present along the anterior, recurved portion of epiproct (Figs 7D–F).
Female - 7th sternum. Seventh sternum with a small, lobe nested in a scarcely-convex central notch. Lobe ranges in shape from subtriangular (Fig. 7G) to convex (Fig. 7H). Posterior margin moderately convex.

Material examined

USA, Alabama: Clay Co., tributary to Barbaree Creek, 22 km E Talladega, Talladega National Forest, 33.4187, -85.8706, 16.II.2003, S.A. Grubbs and D.K. King, 2♂, 2♀ (WKUC – paratypes); same but 5.III.2012, S.A. Grubbs, ♂, 4♀ (WKUC); Swept Creek, Talladega National Forest, 33.2602, -86.1006, 23.I.2006, A.L. Sheldon, ♀ (WKUC); tributary to Swept Creek, Talladega National Forest, 33.2595, -86.1031, 23.I.2006, A.L. Sheldon, 3♂, 6♀ (WKUC); tributary to Swept Creek, Talladega National Forest, 33.2632, -86.0922, 24.I.2006, A.L. Sheldon, 7♂, 9♀ (WKUC); South Branch Swept Creek, Talladega National Forest, 33.2607, -86.0952, 24.I.2006, A.L. Sheldon, 2♂, 6♀ (WKUC); tributary to Swept Creek, Talladega National Forest, 33.2614, -86.0955, 24.I.2006, A.L. Sheldon, ♀ (WKUC); tributary to West Fork Hatchet Creek, Talladega National Forest, Forest, 33.2938, -86.0780, 25.I.2006, A.L. Sheldon, ♂ (WKUC); tributary to West Fork Hatchet Creek, Talladega National Forest, Forest, 33.2740, -86.0733, 25.I.2006, A.L. Sheldon, ♂, ♀ (WKUC); tributary to West Fork Hatchet Creek, Talladega National Forest, Forest, 33.2823, -86.0666, 25.I.2006, A.L. Sheldon, 4♂, 4♀ (WKUC); tributary to West Fork Hatchet Creek, Talladega National Forest, 33.2825, -86.0668, 8.III.2007, A.L. Sheldon, 3♀ (WKUC); tributary to West Fork Hatchet Creek, Talladega National Forest, 33.2743, -86.0739, 8.III.2007, A.L. Sheldon, 2♀ (WKUC); tributary to West Fork Hatchet Creek, Talladega National Forest, 33.3219, -86.0671, 7.IV.2008, A.L. Sheldon, 2♀ (WKUC); tributary to West Fork Hatchet Creek, FR 662, 16 km SSE Talladega, Talladega National Forest, 33.3048, -86.0380, 5.III.2012, S.A. Grubbs, ♂, 2♀ (WKUC); tributary to Hatchet Creek, FR 687, Talladega National Forest, 33.1557, -86.1196, 5.III.2012, S.A. Grubbs, 4♀ (WKUC); tributary to Cheaha Creek, Talladega National Forest, 33.4397, -85.8387, 5.III.2012, S.A. Grubbs, ♀ (WKUC); tributary to Tallaseehatchie Creek, FR 616, Talladega National Forest, 33.2053, -86.0800, 5.III.2012, S.A. Grubbs, ♂, 2♀ (WKUC); Cleburne Co., Cheaha Creek, above Cheaha Lake, Cheaha State Park, 2.III.1991, R.W. Baumann and S.M. Clark, 2♂, 2♀ (BYUC); Talladega Co., tributary to Smelley Creek, Talladega National Forest, 33.2988, -86.0842, 8.III.2007, A.L. Sheldon, ♂, 6♀ (WKUC), Smelley Creek, Talladega National Forest, 33.3010, -86.0945, 21.XII.2007, A.L. Sheldon, ♂ (WKUC); tributary to Smelley Creek, Talladega National Forest, 33.3006, -86.0862, 7.IV.2008, A.L. Sheldon, ♂, 2♀ (WKUC).

Distribution

USA: AL (DeWalt et al. 2012^[1])

Remarks

This species is known only from the southern Talladega Mountains region of eastern Alabama (Fig. 13), the southern terminus of the Appalachian Mountains. Extensive collecting efforts by both the author and Dr. Andrew Sheldon since 2005 have yet to produce localities north from the two counties (Clay and Talladega) where this species has been obtained.

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

1. ↑ 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]

Images

Figures 7. Zealeuctra talladega, scanning electron micrographs, USA, Alabama, Clay Co., tributary to Swept Creek, 24 January 2006 (A–B, D–E, G), USA, Alabama, Clay Co., tributary to West Fork Hatchet Creek, 25 January 2006 (C, F, H). A–C male, cleft, dorsal view, 350× D–F male, epiproct, lateral view, 500× G–H female, posteromedial portion of seventh abdominal sternite, 350×.  Figures 8. Zealeuctra ukayodi, sp. n., scanning electron micrographs, USA, Alabama, Jackson Co., Poplar Spring, 16 March 2008 (A–D, F–J), USA, Tennessee, Grundy Co., tributary to Elk River, 12 February 2007 (E). A–B male, cleft, dorsal view, 200× C–E male, epiproct, lateral view, 350× or 500× F female, posteromedial portion of seventh abdominal sternite, 350× G male terminalia, lateral H male terminalia, dorsal I male terminalia, ventral J female terminalia, ventral.  Figure 13. Distribution map for Zealeuctra stewarti, Zealeuctra talladega, Zealeuctra ukayodi sp. n., and Zealeuctra warreni.