Superfamily Argiopoidea 



measuring one half inch in length. It is of a rusty black colour; 

 in alcohol the cephalothorax and legs are dark reddish brown and 

 the abdomen gray. The whole body is covered with fine black 

 hairs. The middle and hind pairs of spinnerets are either greatly 

 reduced in size or are entirely wanting, in which case the 

 spider has only two spinnerets; most of the specimens of 

 this species in our collection are in this condition. The 

 structure of the epigynum of the female is shown in Fig. 311. 



This is a widely distributed 

 species in the North; its range ex- 

 tending from the Atlantic to the Pa- 

 cific. It lives under stones and leaves. 

 Its egg-sac is snowy-white and flat; 



Fig. 311. EPIGYNUM OF 

 GXAPHOSA GIGAXTEA 



I ig $12. GNAPHOSA GI 

 GANTEA AND EGG-SAC 



its diameter is as great or greater than the length of the spider. 



On July 20th I found at Ithaca, N. V.. several females, each 

 with an egg-sac. under stones in a dry pasture. In each case the 

 female was resting on the egg-sac with some of her legs wrapped 

 around it (Fig. 312). From one of these egg-sacs the spiderlings 

 emerged August 21st. 



Gnaphosa scricata (G. ser-i-ca'ta). — This is a smaller specie, 

 the length of the body being a little less than one fourth inch in 

 both sexes. The cephalothorax and legs are rufous; the abdomen, 

 bluish black. There is a small black ring around each eye. 



This is a widely distributed southern species. It is common, 

 in the region where it occurs, on the ground or under stones and 

 leaves. It runs with great rapidity. 



Genus CALLILEPIS (Cal-lil'e-pis) 



The lower margin of the furrow of the chelicerae is armed 

 with a broad keel or lobe Fig. $13 as m Gnaphosa: but this genus 



$21 



