J. H. Kmerton — New Enyland Therididce. 23 



Asagena Americana Keys. 



Plate IV, figures G to 6c. 



4mm long. Cephalothorax dark reddish brown, sliglitly rongli in 

 females and with sharp elevations along the sides and edge in males. 

 Abdomen dark brown with two white spots across the middle. Legs 

 yellow-brown, in the males, Avith two rows of teeth under each femur, 

 largest on the hinder pair and near the end of the femur of the sec- 

 ond pair. Sternum dark brown, rough, and covered with short 

 hairs. The eyes are about equal in size and separated by their diam- 

 eter from each other. The males difler from females in having the 

 cephalothorax lai-ger and legs stouter, and both rougher and 

 more spiny than in females. The epigynum has a wide opening over 

 the fold under a hard convex plate between the air sacs. The male 

 palpus is large and the palpal organ has a long black tube supported 

 by a hard process on the inside and a soft one near the tip. 



Eastern Mass.; Williamstown, Mass., J. S. Kingsley. Schoharie, 

 N. Y.; New Haven, Conn.; Washington, D. C'., Geo. Marx. Usually 

 under stones with some web. Females with round, loose cocoons, 

 July 10, Salem. Males, May lU, in the Boston public garden, and 

 Schoharie, N. Y., May 28. Young of both sexes are found under 

 stones in winter. 



Argyrodes Simon, Hist. Nat. ties Araignees. 



In t+iis genus the abdomen is triangular or prolonged backward to 

 a point far beyond the spinnerets. The cephalothorax is long and 

 narrow. The head slopes forward in front of the eyes and the man- 

 dibles point obliquely forward. The legs are long and slender. The 

 middle eyes of both rows are farther from each other than from the 

 side eyes, and are somewhat larger. In xi. Jictilium, which belongs 

 in Ariamnes Th,, the middle eyes are close to the lateral, forming 

 two groups of four eyes each, which appears to be the only reason 

 for separating this from Argyrodes. 



Argyrodes trigonum. 



Theridion trvjonuin Hentz, Boston Journ. Nat. Hist., vol. vi. 

 Plate V, figures 1 to le. 



This I suppose to be the Theridion trigonum of Hentz. It agrees 

 in size and color with his description and figures, and in the arrange- 

 ment of the eyes. It has also the peculiar cocoon described by Hentz. 

 Large females measure 3""" from head to spinnerets. The upper part 



