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Brady — Spider Genus Trochosa 
199 
are less well developed in gosiuta (compare Fig. 41 with Fig. 44). 
Also the distal paleal process (p ) and the median apophysis (ma) of 
gosiuta (Figs. 45, 46) are less well developed than in shenandoa 
(Figs. 42, 43). 
Natural History. Trochosa gosiuta occurs in relatively dry, desert 
regions in the western states. Nothing concerning its life style 
beyond this has been reported. 
Distribution. From western Texas across New Mexico, Arizona, 
and southern California to northern Colorado, Utah, and Nevada 
(Map 2). 
Records: Texas. Brewster Co.: Big Bend Nat. Pk., Chisos Basin, 
6,000 ft., 25 Aug. 1967, 59 (W. J. Gertsch); Chisos Mtns., 14 Dec. 
1954, 5 (K. W. Haller). Colorado. Boulder Co.: Boulder, Bluebell 
Canyon, 23 Oct. 1944, $ (R. E. Gregg); Green Canyon, 10 Oct. 
1935, $ (M. Calvert); Gregory Canyon, 7-28 Oct., 1938, 5<? : 699 
(V. Lanham), 20 Apr. 1965, 9 (B., C. Durden); El Paso Co.: Colo¬ 
rado Springs, 3 June 1945, <5$ (R. E. Gregg); Larimer Co.: Fort 
Collins, 6,400 ft., 15 Sept. 1946, 59 (C. C. Hoff). Utah. Carbon; 
Duchesne; Emery; Grand; Salt Lake; San Juan; Sevier; Tooele; 
Utah; Wasatch; Washington; Wayne. New Mexico. Bernalillo; 
Dona Ana; Eddy; Grant; Lincoln; Rio Arriba; Torrance; Valencia. 
Nevada. Clark Co.: Las Vegas, Bouldorado Ranch, 15 Oct. 1944, 9 
(D. J. Zinn). Churchill Co.: Churchill Crossing, 17 Oct. 1941, 9- 
Arizona. Cochise; Coconino; Graham; Maricopa; Mohave; Navajo; 
Pima; Pinal; Santa Cruz. California. Imperial Co.: Salton Sea, Fish 
Springs, 12 Mar. 1941, 99 (A., W. Ivie), Riverside Co.: Riverside, 
25 June 1941, San Bernardino Co.: Mohave Desert, 1 Oct. 1938, 9 
(J. A. Anderson), Twenty-Nine Palms, 1-15 July 1945, 9 (J- H. 
Branch). 
Figs. 28-31. Trochosa terricola Thorell. 28-29. Male from Fruitland, Payette 
Co., Idaho, 10-25 Sept. 1941.28. Left palpus, ventral view. 29. Left palpus, retrolat- 
eral view. 30-31. Male from South Meriden, New Haven Co., Connecticut, Jan- 
May 1939. 30. Ventral view. 31. Retrolateral view. 
Figs. 32-33. Trochosa parthenus Chamberlin, male from Alachua Co., Florida, 9 
Nov. 1928. 32. Left palpus, retrolateral view. 33. Ventral view. 
Figs. 34-35. Trochosa shenandoa Chamberlin and Ivie, male from Beaufort, 
Carteret Co., North Carolina, 25 Jan. 1952. 34. Ventral view. 35. Retrolateral view. 
Figs. 36—37. Trochosa avara Keyserling, male from Ramsey, Bergen Co., New 
Jersey, 24 Sept. 1934. 36. Ventral view. 37. Retrolateral view, e, embolus. 
