166 Proceedings of the Biological Society of Washington. 



Zelotes montereus, sp. nov. 



Female. — Blackish throughout excepting venter of abdomen which is 

 paler. Eyes of posterior row equal; medians their radius apart, five-sixths 

 their diameter from the laterals. Met. I and II with a pair of spines. Tib. 

 I and II unarmed. Upper margin of furrow of chelicera with four teeth, 

 the lower with two. Epigynum most like that of discens but with a more 

 prominent angle between anterior pockets which are nearer together. 



Length, 8.5 mm.; cephalothorax, 3.1 mm.; tib. + pat. IV, 2.9 mm. 



Holotype.—M. C. Z. 646 ( 9 )• 



Locality. — Cal.: Pacific Grove. 



Zelotes tuobus Chamberlin. 

 Ann. Ent. Soc. America, 1919, 12, p. 247, pi. 16, f. 7. 



Holotype.—M. C. Z. 387 ( 9 )• 

 Locality. — Utah: Fillmore. 



Zelotes gynethus Chamberlin. 

 Jour. Ent. and Zool., 1919 (adv. reprint), and 1920, 12, p. 7, pi. 3, f. 1. 



Holotype.—M. C. Z. 363 ( 9 )• 

 Locality. — Cal.: Claremont. 



Zelotes (?) arizonensis (Banks). 

 Prosihesima arizonensis Banks, Proc. U. S. N. M., 1901, 23, p. 582. 



Holotype.—V. S. N. M. 5424 ( 9 )• 

 Locality. — Arizona: Catalina Springs. 



Probably does not belong in this genus, but, as the type was not available 

 for study, it is left tentatively in the group where described. 



Drassyllus, gen. nov. 

 Genotype. — D. fallens, sp. nov. 



Drassyllus fallens, sp. nov. 



Prosihesima depressa Emerton (in part). Trans. Conn. Acad., 1911, 16, p. 



406, pi. 5, f. 8, but not f. 8a, 8b, or 8c. 

 nee Prosthesima depressa Emerton, Trans. Conn. Acad., 1889, 8, p. 173, pi. 



3, f. 8. 



Female. — Carapace and sternum dusky brown or chestnut to nearly solid 

 black. First and second legs black excepting the metatarsi and tarsi which 

 are yellow. Posterior legs lighter throughout. Eyes nearly as in depressus 

 Em., as is also spining of legs and armature of chelicerae. Median piece 

 of epigynum distinct, expanded caudally and ending anteriorly near middle 

 of length of median channel but not inversely T-shaped. Tib. + pat. I 

 shorter than cephalothorax. 



Length, 4-5 mm.; cephalothorax, 1.87 mm.; tib. + pat. IV, 1.95 mm. 



Male. — Median ventral apophysis of bulb of palpus much more slender 

 than in depressus and the tibial apophysis not at all geniculate. 



Holotype.—M. C. Z. 634 ( 9 )• 



