1892.] NATURAL SCIENCES OF PHILADELPHIA. 19 



Prosthesima minima, nov. sp. Plate lY, fig. 69. 



Length 9 2-8miii. 



Ceplialothorax dull yellowish-brown ; legs pale, a little tinge of 

 greenish and brownish ; eyes with black rings ; sternum nearly 

 white, a little brownish, edge with stiff black hairs. Abdomen 

 above and below^ pure white, with black hairs which arise from 

 piukisli dots ; epigynnra reddish ; spinnerets white, and projecting 

 beyond end of abdomen. Cephalothorax widest behind the middle, 

 narrow in front ; abdomen truncate at base, rounded behind ; 

 epigynum small as seen in figure. 



One specimen under a stone in Six Mile Creek, March 19. 



Poecilochroa montana Em. 



One specimen, 24 March. Buttermilk Creek. 



The cephalothorax nearly black as are the femora of the legs ; 

 the rest of the legs a much lighter brown. Received from Mr. Mac- 

 Gillivray. 



Poecilochroa bilineata Hentz. 



Uncommon ; under stones in Fall Creek. 

 Gnaphosa brumalis Thor. 



Not common. 

 Gnaphosa conspersa Thor. 



Common under stones. 

 Gnaphosa humilis, nov. sp. Plate T, fig. 59. 



Total length 9 lo" mm. 



Length of cephalothorax 5"2mn). breadth 3'9mm. 



Length of abdomen 7"8mm. breadth 4'7mm. 



Length of sternum 2"6mm. breadth 2-lmm. 



Cephalothorax reddish brown with long black hair and short 

 pubescence; mandibles darker; sternum lighter; legs like sternum ; 

 abdomen colored as usual. Cephalothorax longer than tibia and 

 patella IV ; two spines at apex of tibipe 1 and II on under side, one 

 or two on tibia II near the middle ; epigynum as figured. 



This may be the G. seudderi Thor. which Emerton considers 

 identical with G. brumalis Thor. I think my specimens are dis- 

 tinct from this latter species. Infrequent, 



Drassus saccatus Em. 



Frequent under stones. Soutli Hill, Six Mile Creek, Sept., 

 Oct. 



