Tayshaneta whitei, Ledford, Joel, Paquin, Pierre, Cokendolpher, James, Campbell, Josh & Griswold, Charles, 2012

Ledford, Joel, Paquin, Pierre, Cokendolpher, James, Campbell, Josh & Griswold, Charles, 2012, Systematics, conservation and morphology of the spider genus Tayshaneta (Araneae, Leptonetidae) in Central Texas Caves, ZooKeys 167, pp. 1-102 : 37-38

publication ID

https://dx.doi.org/10.3897/zookeys.167.1833

persistent identifier

https://treatment.plazi.org/id/987E353E-1C95-8478-6AAB-E92567ED3CE6

treatment provided by

ZooKeys by Pensoft

scientific name

Tayshaneta whitei
status

sp. n.

Tayshaneta whitei   ZBK sp. n. Figs 1D30 A–F51A–F 54E59

Type.

Male holotype from Lithic Ridge Cave, Government Canyon State Natural Area, Bexar County, Texas, 6-November-2002, Engelhard, J. Krejca, 29.56N, 98.74W, (AMNH).

Etymology.

This species is named in honor of Kemble White, fellow caver, geologist and collector of many Tayshneta species in Texas.

Other material examined.

USA: Texas: Bexar County: Caracol Creek Coon Cave, 15-June-1993, J. Loftin, J. Reddell, M. Reyes, G. Veni, 29.45N, 98.71W, 1 juv., (TMM); Caracol Creek Coon Cave, 10-March-2005, P. Paquin, 29.45N, 98.71W, 1 ♂, 2 ♀, 1 juv., (CASC); Cave site #801, West of Helotes, November-1999, K. White, 1 ♂, 1 ♀, 1 juv., (TMM); Lithic Ridge Cave, Government Canyon State Natural Area, 1-October-1994, Palit, Atkinson, 29.56N, 98.74W, 1 juv., (TMM); Lithic Ridge Cave, Government Canyon State Natural Area, 4-June-1995, G. Veni, 29.56N, 98.74W, 1 ♀, (TMM); Lithic Ridge Cave, Government Canyon State Natural Area, 6-November-2002, Englehard, J. Krejca, 29.56N, 98.74W, 2 ♂, 2 ♀, 1 juv., (TMM); Lithic Ridge Cave, Government Canyon State Natural Area, 12-November-2009, J. Ledford, M. Sanders, N. Lake, 29.56N, 98.74W, 2 ♂, 2 ♀, 1 juv., (TMM); Medina County: Medina Dam Cave, June-2010, K. McDermid, 1 juv., (TMM); Nisbet Cave, 4-March-2001, G. Veni, Waters, 29.53N, 98.91W, 1 ♂, (TMM).

Diagnosis.

Tayshaneta whitei may be separated from all Tayshaneta species, except Tayshaneta bullis and Tayshaneta microps , by having a combination of males with an elongate retrolateral tibial spine, more than 0.5 × length of the palpal tarsus and lacking a ventral sclerite (Figs 51B, E). Separated from Tayshaneta bullis and Tayshaneta microps by the unique shape of the embolus (E, Fig. 51D) and the distinctive retrlolateral sclerite (RS, Figs 51 D–E).

Description.

Male (holotype). Body length 1.52, carapace 0.61 long, 0.50 wide, length 1.21 × width. Carapace brown, sparsely setose; eyes surrounded by dark markings (Figs 30 A–C). Legs elongate and thin, femur I 1.61 × carapace length, covered in fine setae and with few scattered spines. Palpal tarsus undivided, tapering apically; retrolateral tibial spine straight, sculptured throughout, length 0.51 × tarsus length. Bulb suboval, length 1.71 × width; embolus subquadrate, with small basal tooth (E, Fig. 51 D–F), length 1.6 × width. Abdomen white, without pattern, 0.90 long, 0.67 wide, covered in fine setae.

Variation(n = 4). Total length 1.52-1.70; carapace length 1.16-1.21 × carapace width; length femur I 1.45-1.92 × carapace width.

Female (Lithic Ridge Cave).Body length 1.49, carapace 0.61 long, 0.49 wide, length 1.25 × width. Carapace light brown, sparsely setose; eyes surrounded by dark markings (Figs 30 D–F). Legs elongate and thin, femur I 1.58 × carapace length, covered in fine setae and with few scattered spines.Atrium oval, length 0.5 × width, spermathecae with twisted stalks and large, circular heads (Fig. 54E).Abdomen light brown, 0.90 long, 0.60 wide, covered in fine setae.

Variation(n = 3). Total length 1.41-1.80; carapace length 1.18-1.28 × carapace width; length femur I 1.33-1.58 × carapace width.

Natural History.

Several individuals of Tayshaneta whitei were collected under loose stones near the bases of walls in Lithic Ridge Cave, Bexar County Texas.

Distribution.

Known from caves in Bexar and Medina Counties, Texas (Fig. 59).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Leptonetidae

Genus

Tayshaneta