198 J. H. Emerton, 



genera] color is gray, paler on the legs, and there is great differ- 

 ence in the depth of color in different individuals. In alcohol the 

 wetting of the hairs makes them paler and more translucent, and 

 they soon become yellow. The abdomen is marked with four 

 longitudinal lighter lines partly broken into spots. There are no 

 markings on the cephalothorax, except a little black around the eyes. 



The epigynum is not folded, but extends backward half way to 

 the spinnerets, curved slightly inward toward the bod}' and out- 

 ward again at the tip, PI. IV, fig. 12d. 



The male palpi have the tibial hook large and wide, turning 

 outward with three teeth on the thickened edge. The base of the 

 tarsus has a slight horn, shorter than in viaria. The end of the 

 palpal organ has two small black processes, one twice as long as 

 the other, PI. IV, fig. 12a, which show from below when the palpi 

 are held in the usual position. 



Microneta serrata. (Plate IV, figures 15, 15a, 15b.) 



One male from a fence in Boston, Nov. 20, 1900, during the 

 autumn flight. Length 1.5 mm. The cephalothorax is a third longer 

 than wide, and narrowed toward the front. The eyes cover the 

 whole front of the head and are large for the size of the spider. The 

 front middle eyes are only slightly smaller and closer than the 

 upper middle pair. The cephalothorax is highest in the middle 

 where it is more than half as high as wide. The sternum is large 

 and convex, widest in front, and ending in a blunt point between 

 the fourth coxae. 



The male palpi are very peculiar. The patella is as long as wide ; 

 the tibia is twice as long as the patella and a little widened at the 

 end, with a thin projection on the outer upper corner, extending 

 forward and turned a little inward. There is a little ridge on the 

 back of the tarsus parallel to this process. The tarsus has a slight 

 spur at the base. The tarsal hook is slender as in several small 

 Bathyphantcs. The middle appendage of the palpal organ is larger 

 than in Microneta viaria and has on the outer side a line of short 

 black spines, PI. IV, fig. 15a. 



Epeira angulata, Clerck. 



E. silvat.ica, Em. N. E. Epeiridae. Trans. Conn. Acad., 1884. 

 E. solitaria. N. E. Epeiridae. Trans. Conn. Acad., 1884. 

 E. nigra. Canadian Spiders. Trans. Conn. Acad., 1894. 



Comparison of several specimens from western Canada leads me 

 In think that silvatica, solitaria anil nigra are all varieties of atlgll- 



