1892.] NATURAL SCIENCES OP PHILADELPHIA. 23 



-Phrurolithus palustris, nov, sp. Plate I, fig. 70. 



Total length ? 2-5-2-8mm. 



Cephalothorax yellowish, with dark stripe each side connected 

 behind ; margin black ; eyes on black ; sternum and legs similar to 

 cephalthorax, first tibia and patella a little darker; abdomen with 

 blackish gray markings, spots on base of dorsum sometimes run 

 together, and behind these, chevrons interrupted or sub-interrupted 

 ■on sides ; venter with a few dark spots near spinnerets and two in 

 front of these; epigynum reddish, as figured ; cephalthorax broad. 



Two specimens, Indian Spring. 



Phrurolithus alarius Hentz. 



Frequent under stones. 

 Agroeca pratensis Em. 



Common in autumn and winter under leaves. 

 Agroeca ornata, nov. sp. Plate I, figs. 68 and 68a. 



Total length 9 4-6mm. 



Length of cephalothorax 2" mm. breadth l'7mm. 



Length of abdomen 2-6mm. breadth l'4mm. 



Cephalothorax light yellowish, with faint blackish lines radiating 

 from the dorsal groove, 'hem black ; mandibles, palpi, mouth-parts, 

 sternum and legs, all light yellowish, the sternum a little brownish 

 on sides. Abdomen light yellow-brown, on hinder part of dorsum 

 two rows of short transverse brown spots, sides with some brown 

 spots and short stripes; venter immaculate; epigynum reddish; 

 spinnerets light; eyes surrounded by black; a faint light-brown 

 median stripe on basal part of dorsum. 



Rare. Buttermilk Creek. 



AGALENIDiE. 



Agaleninse. 



Cybaeus giganteus, nov. sp. Plate I, fig. 71. Plate V, fig. 71. 



Total length 9 ll-5mm. 



Length of cephalothorax 5mm. breadth 3"4mm. 



Lenth of abdomen 7mm. breadth 4'9mm. 



Cephalothorax dark red-brown, shining; mandibles similar; legs 

 and palpi a little lighter ; under side of coxte yellow-brown ; ster- 

 num yellow-brown in center, darker and reddish-brown on sides ; 

 mouth-parts reddish-brown with tips lighter ; venter gray ; lung- 

 jilates lighter; epigynum reddish; spinnerets yellowish; dorsum 



