Titiotus shantzi, 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 : 14-17

Titiotus shantzi , new species

Figures 27–31 ; map 2

TYPES: Male holotype and female allotype from Santa Barbara , Santa Barbara Co., California (May 1948; H. Shantz), deposited in AMNH.

ETYMOLOGY: The specific name is a patronym in honor of the collector of the types.

DIAGNOSIS: Males resemble those of T. flavescens but have the middle prong of the tibial apophysis short, with a beak-shaped dorsal branch (fig. 29); females have the epigynal septum wider posteriorly than do those of T. flavescens (fig. 30).

MALE: Total length 10. Coloration as in T. californicus . Leg spination: femora: I p1-2-1, r2-1-1; II r1-1-2; IV p1-2-1; tibiae: I, II d1-0-1, p0-1-1, v4-4-4, r0-1-1; III r0-1-1; metatarsi: I, II p1-1-0, r1-1-0. Embolus with small, subapical, distally directed projection; median apophysis with small, subdistal projection; middle prong of tibial apophysis small, bifid, with beak-shaped dorsal branch, dorsal prong relatively short (figs. 27–29).

FEMALE: Total length 14. Coloration as in T. californicus . Leg spination: femora: I, II r1- 1-2; III r2-1-1; IV p1-2-1; tibiae: I, II d1-0-1, p0-1-1, v4-4-4, r0-1-1; III, IV r0-1-1; metatarsi: I, II p1-1-0, r1-1-0; III p1-2-2. Epigynal septum relatively narrow, only slightly narrowed posteriorly; posterior ducts recurved (figs. 30, 31).

OTHER MATERIAL EXAMINED: United States : CALIFORNIA: Kern Co.: Fort Tejon State Historic Park , June 15, 1975, at lights (M. Muma, AMNH) , 23; Tehachapi , June 16, 1975, at light (M. Muma, AMNH) , 23. Los Angeles Co.: Acton , May 14, 2000, in house, elev. 2,700 ft (C. Lutz, UCR), 1♀; Agoura, May 6, 2005, in bathroom (D. Trisler, UCR) , 13; Agua Dulce , June 2, 1977 (F. Runyan, LACM) , 13; Canyon Country, mid-May 2003, in house ( R. Fridlund , UCR), 13; Elizabeth Lake, 34 ° 39.7 9 N, 118 ° 21.96 9 W, May 30, 2006, elev. 3,537 ft (C. Becker, UCR) , 13; Kenneth Hahn State Recreation Area , Baldwin Hills, 34 ° 00 9 N, 118 ° 22 9 W, June 2000, pitfall, elev. 67 m (L. LaPierre, P. Williams, CBH) , 13; La Canada, June 24, 1970 (A. Guldaro, LACM), 1♀; Lake Hughes, NW Palmdale, June 2, 2002, elev. 3,200 ft (M. Enright, UCR), 1♀; Lassen Street, Chatsworth, 0.25 mi W Browns Canyon Wash, Apr. 29–May 20, 1966, in house, elev. 950 ft (W. Icenogle, WRI), 2♀, May 23, 1966, in house, elev. 950 ft (W. Icenogle, WRI) , 13; Leona Valley , May 9, 2002, elev. 3,200 ft (K. Smith, CAS) , 23; Placerita Canyon Park , 3 mi E Newhall, July 26, 1972, elev. 1,550 ft (F.

Hovore, WRI), 1♀; Saugas , May 4, 2004 (B. Lytle, UCR) , 13; Valencia, Dec. 1, 2003 (M. Pacheco, UCR) , 13. Monterey Co.: Paraiso Hot Springs, July 4, 1954, elev. 1,400 ft (O. Bryant, CAS), 1♀. San Luis Obispo Co. : Morro Bay , May 26, 1984 ( V. Lee, CAS), 13. Santa Barbara Co. : Lake Cachuma, 18 mi NE Santa

Barbara (W. Gertsch, W. Ivie, R. Schrammel , AMNH), 1♀; Santa Barbara, May 1948 (H. Shantz, AMNH) , 23; Sedgwick Ranch Reserve , May 1997, Malaise trap, elev. 1,800 ft (E., M. Schlinger, CAS), 1♀; Superstar Ranch, Santa Barbara, 34 ° 39 9 N, 120 ° 04 9 W, May–June 1997, elev. 700 ft (E., M. Schlinger, CAS) , 13. Ventura Co.: Simi Valley , May 6, 2003, in house (B. Moran, UCR) , 13.

DISTRIBUTION: Known only from southwestern California (map 2).

Figures

Figs. 27–31. Titiotus shantzi, new species. 27. Left male palp, prolateral view. 28. Same, ventral view. 29. Same, retrolateral view. 30. Epigynum, ventral view. 31. Same, dorsal view.