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Male holotype from 400 Foot Cave, Glass Mountains, Brewster County, Texas, 30.38N, 103.15W, (AMNH).
This species name is derived from the Spanish name for the Glass Mountains “Sierra del Vidrio” in West Texas. The name is to be treated as a noun in apposition.
Tayshaneta vidrio may be separated from all other Tayshaneta species, except Tayshaneta emeraldae, Tayshaneta fawcetti, Tayshaneta grubbsi and Tayshaneta valverdae by having the male palpal tarsus divided apically (Fig. 31D) and by having a mesoapically positioned ventral sclerite on the palpal bulb (VS, Fig. 50E). Separated from Tayshaneta emeraldae, Tayshaneta fawcetti, Tayshaneta grubbsi and Tayshaneta valverdae by having an oval embolus that is smooth along its margins and a ventral sclerite with a distinct apical division (VS, Fig. 50D–F).
Male (holotype). Body length 1.98, carapace 0.80 long, 0.65 wide, length 1.22× width. Carapace orange-yellow, sparsely setose; eyes reduced, surrounded by faint dark markings (Figs 29A–C). Legs elongate and thin, femur I 1.84× carapace length, covered in fine setae and with few scattered spines. Palpal tarsus divided apically (Fig. 31E); retrolateral tibial spine straight, sculptured throughout, length 0.51× tarsus length. Bulb suboval, length 1.70× width; embolus oval, curved at its base, smooth along margins (E, Fig. 50D), length 2.5× width. Abdomen pale yellow, without pattern, 1.18 long, 0.92 wide, covered in fine setae.
Female (400ft. Cave).Body length 1.49, carapace 0.63 long, 0.50 wide, length 1.25× width. Pigmentation, setation and eyes same as for male. Legs elongate and thin, femur I 1.57× carapace length, covered in fine setae and with few scattered spines.Atrium oval, length 1.5× width, spermathecae with twisted stalks and elongate heads (Fig. 54D). Abdomen pale yellow, 0.85 long, 0.70 wide, covered in fine setae.
Variation (n = 2). Total length 1.49–1.81; carapace length 1.10–1.25 × carapace width; length femur I 1.50–1.57 × carapace width.
Known only from 400 foot Cave, Brewster County, Texas (Fig. 60).
- Ledford, J; Paquin, P; Cokendolpher, J; Campbell, J; Griswold, C; 2012: Systematics, conservation and morphology of the spider genus Tayshaneta (Araneae, Leptonetidae) in Central Texas Caves ZooKeys, 167: 1-102. doi