J. H. Emerton — Canadian Spiders, 405 



Maryland. In New England it is common on trees and bushes, 

 while JE. patagiata and E. sdopetaria live usually about houses and 

 fences. 



Epeira trivittata Keyserling, Sitz. der Isis, Dresden, 1863. 



E. trivittata Emerton. 



Lake Winnepegosis. One of the most common spiders all over 

 the United States. 



Epeira aculeata Emerton, Bull. Hayden's U. S. Geological Survey, 1877. 



A female of this species was found by Packard on Gray's Peak, Col- 

 orado, and described in the Bulletin of Hayden's Geological Survey 

 in 1877. Mr. Bean's collection has a male and female from the 

 valley below Laggan, at about 5000 ft. elevation. 



The female is 8™"^ long with colors and markings as described 

 from the Colorado specimen. The light spots of the abdomen are 

 very bright and the head is much lighter colored than the thorax. 

 The light parts of the legs are a little reddish. The epigynum has 

 the finger short and wide, ending in a fine point differing plainly in 

 shape from the long slender finger of carbonaria. PL i, fig. 4« 

 is the epigynum of aculeata and 45, of carbonaria. 



The male is a little smaller. The cephalothorax and legs are light 

 orange brown. The head is but little lighter than the thorax and 

 there is hardly any trace of rings on the legs. The markings of the 

 abdomen are like those of the female, reddish brown, with pale 

 markings and none of the black and gray colors of carbonaria. 

 The second tibia is more thickened at the distal end and has stouter 

 spines than in carbonaria. PI. i, fig. 4c, is the second tibia of 

 aculeata / PI. i, fig. 4c? of carbonaria. 



The male palpus resembles that of carbonaria and has, near the 

 base of the palpal organ, the same fine double spine. PI. i, fig. 4e. 



This species was collected by S. Henshaw in Washington Terri- 

 tory in the Wenass and Klikitat valleys. 



Epeira carbonaria Koch. 



Arachniden fauna Tirols., Zeitsch. deFerdinandeums, lunsbriick, 1869. 



E. packardii Thorell, Spiders from Labrador, Proc. Boston Soc. Nat. Hist., 1875. 



E. carbonaria Em., N. E. Epeiridse. 



This is an alpine species, found only above trees on the Alps in 

 Switzerland, the White Mountains in New Hampshire, the Rocky 

 Mountains, and in Labrador, 400 to 1000 ft. Mr. Bean has two 

 females from the mountains near Laggan, above 6700 ft. 



