,1964] 
Levi — Spider Genera 
89 
Chrosiothes portalensis sp. n. 
Figures 19-22 
Type. Male holotype from Southwestern Research Station, 5 miles 
west of Portal, Cochise County, Arizona, 5-15 Aug. 1955 (W. J. 
Gertsch), in the American Museum of Natural History. The species 
is named after the type locality. 
Description. Carapace light brown, gray on sides and head region, 
reddish around eyes. Sternum yellow-brown, black around margins. 
Legs yellow-brown; proximal ends of femora lighter. Dorsum of 
abdomen white, sometimes with a pair of indistinct gray spots ; anterior 
of dorsum black (Fig. 22). Venter black or gray except for light 
area anterior to spinnerets. Eyes subequal in size, laterals on slight 
tubercles. Anterior median eyes of female one diameter apart, one- 
quarter diameter from laterals. Posterior median eyes their radius 
apart, two-thirds diameter from laterals. Eyes of male slightly closer 
together. Abdomen subtriangular with a pair of anterior humps on dor- 
sum (Fig. 22). Total length of female 2.7 mm. Carapace 0.78 mm 
long, 0.85 mm wide. First femur 1.04 mm; patella and tibia 1.12 mm ; 
metatarsus 0.65 mm; tarsus 0.4 1 mm. Second patella and tibia 0.78 
mm; third 0.59 mm; fourth 0.92 mm. Total length of male 1.1 
mm. Carapace 0.54 mm long, 0.52 mm wide. First femur 0.7 1 mm; 
patella and tibia 0.75 mm; metatarsus 0.45 mm; tarsus 0.32 mm. 
Second patella and tibia 0.57 mm; third 0.39 mm; fourth 0.58 
mm. 
Diagnosis. The shorter palpal embolus (Fig. 19) separates this 
species from C. jocosus. The shorter duct of the female (Fig. 20) 
and the different shaped abdomen (Fig. 22) separates it from C. 
minus cuius . 
Records. Arizona: $ paratype collected with holotype. Nayarit. 
24 km N of Tepic, 25 July 1954, ?, cT , (W. J. Gertsch, AMNH). 
Explanation of Plate 10 
Figs. 19-22. Chrosiothes portalensis sp. n. 19. Left palpus. 20. Female 
genitalia, dorsal view. 21. Epigynum. 22. Female abdomen, dorsal view. 
Fig. 23. C. valmonti (Simon), palpus. 
Figs. 24-25. C. proximus (O. P.-Cambridge) . 24. Female genitalia, dorsal 
view. 25. Epigynum. 
Fig. 26. C. silvaticus Simon, epigynum. 
Figs. 27-30. C. jamaicensis sp. n. 27. Palpus. 28. Female genitalia, dorsal 
view. 29. Epigynum. 30. Female abdomen, dorsal view. 
Figs. 31-33. C.. niteroi sp. n. 31. Female genitalia, dorsal view. 32. 
Epigynum. 33. Female. 
Figs. 34-36. C. litus sp. n. 34. Female genitalia, dorsal view. 35. Epigynum. 
36. Female. 
Figs. 37-39. C. iviei sp. n. 37. Female genitalia, dorsal view. 38. Epigynum. 
39. Female. 
