316 J. II. Emerton — Neio England Epeiridm. 



colored and the sternum black or dark brown. The abdomen is 

 black with five or six pairs of white spots down the middle, in 

 some individuals united into a folium. At the sides are other small 

 irregular white spots running into two -indistinct stripes underneath. 

 The middle of the under side of the abdomen is black, with a central 

 white strip running from the epigynum half way to the spinnerets. 

 The abdomen is oval, narrower but not pointed behind. The whole 

 body is covered with long black and white hairs. The epigynum 

 projects considerably beyond the body, and the middle is covered by 

 a long finger ininiiing out to a fine point, and usually turned outward 

 at the end. 



The male difiers but little from the female in color and markings, 

 but has the usual longer legs and longer spines. 



These spiders live among the bare stones on the upper part of high 

 mountains, above trees. On Mt. Washington, New Hampshire, they 

 are common on the large slopes of bare rock above the Ledge. The 

 spiders described by Thorell were found by Packard in Labrador. 

 F. A. Bowditch has found the same on Mt. Lincoln in the Rocky 

 Mountains, most of them much lai'ger than the White Mt. specimens. 

 Ep. carbonaria of the Alps seems to me to be the same species. I 

 have compared many females and find no constant difference, but 

 have no males of carbonaria for comparison. 



In the valleys of the Alps and all over southern Europe there 

 occurs a closely related species, Ep. ceropec/ia, with similar marking, 

 but bright colors, yellow and brown in place of the black and white. 

 I have not seen any similar s})ecies from the White Mountains, but 

 in the Rocky Mountains there is a species or variety very much like 

 Ep. ceropef/ia, and some females from Mt. Lincoln have colors and 

 markings between these two varieties. 



Epeira placida iktitz. 



Plate XXXIV, figure 2. Plate XXXVT, figures 10, 13. 

 Length of female 3 or 4'""\ The cephalothorax is brownish yellow 

 with three brown stripes and black spots around the eyes. The legs 

 are the same color, a little darker at the ends of the joints. All the 

 legs have long dark colored spines. The abdomen is longer than 

 wide, sometimes egg-shaped with the narrow end in front. In the 

 middle is a brown stripe, with black spots along the edges. This 

 stripe is narrow in front but wider behind the second pair of muscu- 

 lar spots and continues the same Avidth to the spinnerets. On the 

 third segment there is a pair of white spots in the brown band. The 



