Zealeuctra stewarti
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Grubbs2013ZooKeys344, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Grubbs2013ZooKeys344">{{Citation See also the citation download page at the journal. |
Ordo: Plecoptera
Familia: Leuctridae
Genus: Zealeuctra
Name
Zealeuctra stewarti Kondratieff & Zuellig – Wikispecies link – Pensoft Profile
- Zealeuctra stewarti Kondratieff & Zuellig, 2004: 840. Holotype ♂ (TAMU), 5.2 mi E Leakey, Real Co., Texas
Description
Male - abdominal tergal cleft. Anterior portion broadly U-shaped and parallel-sided. Posterior portion V-shaped, with small crenulations evident along inner margins, terminating posteriorly with paired, subtriangular, medially-projected extensions (Kondratieff and Zuellig 2004[1], their Fig. 1)
Male - epiproct. Epiproct spine long, slender, and gently-recurved anteriorly (Kondratieff and Zuellig 2004[1]; their fig. 2). No accessory spine or cusp present.
Female - 7th sternum. Seventh sternum lacking medial lobe, with posteromedial portion overlapping as a slightly-notched, subtruncate flap onto anteromedial margin of the eighth sternum Kondratieff and Zuellig 2004[1]; their fig. 3).
Material examined
USA, Texas: Real Co., Little Dry Frio, Farm Rd. 337 E of Leakey, 29.7214, -99.6739, 3.IV.2004, B.C. Kondratieff and R.E. Zuellig, 4♂, 6♀ (Paratypes; BYUC, CSUC); Little Dry Frio, Hwy 337, 5.2 mi E of Leakey, 29.7214, -99.6739, 20.II.2010, K.W. Stewart, 2♂ (BPSC).
Distribution
USA: TX (DeWalt et al. 2012[2])
Remarks
This is easily the rarest of the Zealeuctra species, currently known only from two streams within a very small geographic area in the Texas Hill Country region (Fig. 13; Kondratieff and Zuellig 2004[1]), overlapping in range and adult flight periods only with Zealeuctra arnoldi. The long and very slender epiproct spine exhibited by Zealeuctra stewarti is unique and easily distinguished from all members of this genus. In addition, the females of Zealeuctra stewarti and Zealeuctra warreni are the only two Zealeuctra species lacking a posterior lobe nested in central notch and where the posteromedial portion of the 7th sternum is flap-like and extending over the anteromedial margin of the 8th sternum.
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
- ↑ 1.0 1.1 1.2 1.3 Kondratieff B, Zuellig R (2004) A new species of Zealeuctra Ricker (Plecoptera: Leuctridae) and confirmation of Hydroperla fugitans (Needham and Claassen) (Plecoptera: Perlodidae) from Texas. Proceedings of the Entomological Society of Washington 106: 840–843. http://www.biodiversitylibrary.org/item/95279#page/856/mode/1up
- ↑ 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
|
