1901.] NATURAL SCIENCES OF rHILADELPHIA. 591 



long and flat ; first eye-row like that of F. pertinax, the second, 

 however, is full as near to the dorsal as to lateral eyes. Legs 

 moderately slender, and well spincd; metatarsi III and IV spined 

 along their length; leg 1 much enlarged, except the metatarsi and 

 tarsi; three pairs of spines under tihia I, two paii's under metatar- 

 sus I; tibia and patella I rather more hairy than the other joints; 

 coxa) I separated by width of lip. Abdomen nearly twice as long 

 as broad, tapering behind, somewhat depressed. The epigynum 

 shows a broad tapering cavity, limited behind by two approaching 

 corneous pieces, leaving a median emarginatiou. 



Length 6 mm. 



Two females from Albuquerque (Soltau). Readily known 

 from our two other species by its coloration as well as the structure 

 of the vulva. 



Pellenes oregonense Peckham. 



Habrocestum oregoneiise'Peckh^m, Trans. "Wise. Acad., VII, 188S, p. 66. 



One male from Las Vegas Hot Springs. It is much rubbed, 

 but the male palpus agrees with Peckham' s figure. 



Pellenes hirsutum Peckham. 



Habrocestum hirsutuui, Peckham, Trans, Wise. Aead., VII, p. 64, 



(1888). 



Prof. Peckham so named a specimen sent him by Prof. Town- 

 send from Las Cruces. 



Pellenes cockerelli n. sp. 



Cephalothorax above black, with black hair, a narrow white 

 stripe each side arising above the lateral eyes and running just 

 below the dorsal eyes back and then down to the hind margin, 

 below this is a black stripe, and the lower sides are clothed with 

 white hair; between the M.E. and on the anterior part of the 

 eye-region is a median white line ; the male shows a more distinct 

 pale V-mark connecting the dorsal eyes; clypeus with white hair; 

 mandibles reddish, with some white hair on basal part; all legs 

 pale in both sexes, dotted and mottled with dark brown, more 

 densely so on the hind pairs, all with black hairs and white scales ; 

 patella I of male paler than the tibia, patella III not modified ; 

 male palpus short, patella and base of tibia very pale, beyond 

 very dark. Abdomen gray above and on the sides, clothed with 

 white hair, with two broad black submedian stripes from base to 



