Titiotus fresno, Platnick & Ubick, 2008

Platnick, Norman I. & Ubick, Darrell, 2008, A Revision of the Endemic Californian Spider Genus Titiotus Simon (Araneae, Tengellidae), American Museum Novitates 3608 (1), pp. 1-36 : 27-28

Titiotus fresno , new species

Figures 62–66 ; map 2

TYPES: Male holotype and female allotype taken at an elevation of 4633 ft at Cedar Grove, Kings River Canyon, Fresno Co. , California (July 16, 1952; W. Gertsch), deposited in AMNH.

ETYMOLOGY: The specific name is a noun in apposition taken from the type locality.

DIAGNOSIS: Males of this distinctive species can easily be recognized by the relatively small embolus (fig. 63) and the relatively wide middle prong of the tibial apophysis (fig. 64), females by the anteriorly rounded epigynal septum (fig. 65).

MALE: Total length 17. Coloration as in T. californicus . Leg spination: femora: I p0-4-1, r1-3-1; II p1-2-1, r1-1-3; III p2-2-1, r1-2-2; IV p1-2-1; tibiae: I d1-0-1, v6-6-8, r1-2-1; II p1-2- 1, v6-6-6, r1-2-0; IV r1-1-1; metatarsi: I p2-0-0, r2-0-0; II p2-0-0, r1-2-0; III p1-2-2. Embolus twisted near base, distally very narrow; median apophysis with subdistal and retrolateral projections; middle prong of tibial apophysis wide, with two incisions, dorsal prong relatively short, blade-shaped (figs. 62–64).

FEMALE: Total length 21. Coloration as in T. californicus . Leg spination: femora: I p0-3- 1, r1-2-1; II p1-2-1, r1-2-2; III r2-1-1; IV p1-2- 1; tibiae: I, II p1-2-0, v6-6-6, r1-2-0; IV r1-0-2; metatarsi: I p1-0-0, r1-1-0; II p2-0-0, r1-1-0. Epigynal septum anteriorly with convex lateral margins, posteriorly with straight lateral margins; posterior ducts approximate through much of their length (figs. 65, 66).

OTHER MATERIAL EXAMINED: Two males taken with the types ( AMNH) .

DISTRIBUTION: Known only from the type locality in Fresno Co. (map 2).

Figures

Figs. 62–66. Titiotus fresno, new species. 62. Left male palp, prolateral view. 63. Same, ventral view. 64. Same, retrolateral view. 65. Epigynum, ventral view. 66. Same, dorsal view.