164 Proceedings of the Biological Society of Washington. 



Z. fratris is a varietal form showing differences in palpal organ of male 

 but with no corresponding differences in the female that have thus far been 

 detected. 



Zelotes pseustes, sp. nov. 



MoZe.— Carapace dusky chestnut, the legs dusky brown. Abdomen dark 

 grey, scutum reddish or chestnut. Por^terior row cf eyes straight, the eyes 

 equidistant or nearly so, the medians being about their diameter apart. 

 Met. I and II with a pair of spines. Tib. I and II unspined; III and IV 

 with no median dorsal spin?. Tarsus of palpus with a ventral spine toward 

 distal end; embolus with distal portion concealed by apical lobe, not lying 

 in notch of tarsus. Tib. + pat. IV decidedly shorter than cephalothorax. 



Length, 6.7 mm.; cephalothorax, 3.33 mm.; tib. + pat. IV, 2.7 mm. 



Locality . — Texas : Austin . 



Holotype.—M. C. Z. 598 (c^). 



Zelotes duplex, sp. nov. 



Male.— Carapace broad and low, black or nearly so. Legs blackish 

 brown. Abdomen blackish above, the scutum dusky fulvous; venter grey. 

 Eyes of the usual general arrangement. Area of median eyes a little wider 

 behind than in front. Met. I and II with two pairs of long, overlapping 

 spines. Tib. I with two pairs of spines; II with two seriate spines; III and 

 IV with a median dorsal spine. Upper margin of furrow of chelicera with 

 four teeth, the lower with three which are distinct. 



Length, 6 mm.; cephalothorax, 2.5 mm.; tib. + pat. IV, 3.1 mm. 



Holotype.—M. C.Z.Q20 {^). 



Distribution.— Ya.: Fairfax Co., (type loc), Gt. Falls; N. C: Black Mt.; 

 N. Y.: Sea Cliff; Ohio. 



An aberrant species. 



Zelotes puritanus, sp. nov. 



Female.— Carapace and legs dusky chestnut or blackish, the sternum 

 clearer chestnut. Abdomen bluish black. Posterior row of eyes a little 

 . procurved; median eyes their diameter apart, nearer to the laterals. Area 

 of median eyes wider behind than in front. Met. I and II and tib. I and 

 II unarmed. Upper margin of furrow of cheHcera with three teeth, the 

 lower with only 1. Epigynum with an anterior transverse chitinous rim 

 and a median plate expanded behind. 



Length, 7 mm.; cephalothorax, 2.4 mm.; tib. + pat. IV, 2.33 mm. 



Holotype.—M. C. Z. 574 ( 9 )• 



Locality. — Mass. : Wellfleet. 



This is also an aberrant species. 



Zelotes discens, sp. nov. 



Female.— Black throughout excepting tips of legs and venter of abdomen 



in front of epigastric furrow. Posterior median eyes their radius apart 



and about five-sixths their diameter from laterals. Met. I unarmed; II 



with a single spine at base. Tib. I and II unarmed beneath. Upper 



