4 ENTOMOLOGICAL NEWS. [Jan., 'lO 



the first is commonly much reduced or sometimes wholly absent ; the 

 upper margin with three teeth as usual. 



Legs rather long, the distal joints of posterior legs slender. An- 

 terior tibiae armed beneath with the usual three pairs of spines, the 

 relative lengths being much as in typical Pardosas; the distal pair short, 

 the median and basal very long, their lengths being double the diameter 

 of the joint and the proximal overlapping the median pair. 



Epigynum short. The septum short and wide, showing clearly a 

 division into a narrow median part and broad lateral alae. The pos- 

 terior division of transverse arms relatively very broad, and the in- 

 cisions from ends of arms extending acutely mesad between these 

 broad divisions and the alar portion of septum. Openings of the sper- 

 matheca plainly showing. See Plate I, Fig. 1. 



Length of cephalothorax 4.5 mm.; width, 2.5 mm. 



Length of leg I, 12 mm. ; tibia plus patella, 4 mm. ; metatarsus, 2.5 mm. 



Length of leg II, 10 mm. 



Length of leg III, 9.7 mm. 



Length of leg IV, 15 mm.; tibia plus patella, 4.7 mm.; metatarsus 4.1 

 mm. 



Male. Coloration nearly as in the female ; the sternum more com- 

 monly with a row of three black dots near each lateral margin, one dot 

 lying opposite the interval between each two coxae ; the ground color 

 of abdomen darker, of a more reddish cast, and the lateral dark bands 

 more nearly solid for entire length. 



Anterior legs with the tegument of femora, patellae, tibiae and 

 metatarsi black, the patellae and tibiae and also part of the metatarsi 

 also densely clothed with black hair that stands out in brush-like form. 

 For structure of palpal organ see Plate I, Fig. 2. 



Length of cephalothorax, 3.3 mm. ; width, 2.3 mm. 



Length of leg I, 10 mm. ; tibia plus patella, 3.5 mm. ; metatarsus, 

 2.4 mm. 



Length of leg II, 9 mm. 



Length of leg III, 8.7 mm. 



Length of leg IV, 15 mm.; tibia plus patella 4.1 mm.; metatarsus, 4. 

 mm. 



Locality Southern Nevada (Las Vegas). 



Individuals of this species were observed in large numbers 

 running across a footpath along a small stream at Las Vegas. 

 They seemed especilly active after sunset, coming forth at that 

 time from concealment. At the date of observation (early 

 June) both males and females were common. No females 

 with egg-sacs were taken. 



