A Revision of the Endemic Californian Spider Genus Titiotus Simon (Araneae, Tengellidae) Author Platnick, Norman I. Author Ubick, Darrell text American Museum Novitates 2008 2008-04-09 3608 1 1 36 http://www.bioone.org/perlserv/?request=get-abstract&doi=10.1206%2F0003-0082(2008)3608%5B1%3AAROTEC%5D2.0.CO%3B2 journal article 10.1206/0003-0082(2008)3608[1:AROTEC]2.0.CO;2 0003-0082 5389369 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. 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. Figs. 32–36. Titiotus tahoe , new species . 32. Left male palp, prolateral view. 33. Same, ventral view. 34. Same, retrolateral view. 35. Epigynum, ventral view. 36. Same, dorsal view. 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).