S, Jff. Emerton — Neio England Epeiridm. 333 



Tetragnatha vermiformis. 



Plate XXXIX, fkiures 12, 13, 14. 



The females of this species have tlie abdomen long and straight 

 and measure 10 or 12""" long, cephalothorax o""", mandibles 2'""', 

 first leg 2l™"\ 



The upper row of eyes is curved backward as in lahoriosa. The 

 front lateral eyes are widely separated from all the others, twice as 

 far from the middle pair as these are from each other. The cephalo- 

 thorax is dull yellow with dark stripes in the middle and on the 

 edges. The abdomen has a distinct folium with scolloped edges and 

 a light line in the middle. 



The male is smaller than the female. The mandiV)les are not much 

 longer than those of the female, and the teeth are not much larger. 



Beverly, and Middleton, Mass, 



Tetragnatha extensa Linn., Thoreii, etc. 



Plate XXXIX, figures 9,10. 



Length of female 7 to 10™"' according to size of abdomen, cephalo- 

 thorax 3'""', mandibles 2'"'", front legs 20""", palpi 5"'"'. 



The legs and cephalothorax are browner yellow than in most 

 species and sometimes the cephalothorax has three indistinct brown 

 stripes and the legs brown spots at the ends of the joints, and around 

 the bases of the hairs. The sternum is the same color as the legs, , 

 occasionally showing a lighter stripe in the middle. The abdomen 

 has various dark and light lirown markings, sometimes forming a 

 narrow folium on a light ground, on each side of which is a dark 

 and liglit line. The abdomen is comparatively short, being ^ to \ as 

 wide as long. The rows of eyes are only slightly curved backward. 

 The lateral eyes are nearer together than the middle ones, and are 

 usually surrounded by black rings so that they appear to touch each 

 other. The mandibles are two-thirds as long as the cephalothorax, 

 and not much inclined forward. 



The male is somewhat smaller and more slender than the female, 

 but the legs are no shorter, and the mandibles slightly longer and 

 more slender. The palpi are 4"'™ long, the femur 2"'"\ The tibia is 

 nearly twice as long as the patella. The second tooth on the upper 

 side of the claw groove of the mandibles is much longer than the 

 others. 



Northern New York ; White Mts, ; Massachusetts and Connecticut. 



