196 ./. //. Emertan, 



Tapinopa bilineata, Banks. Journal New York Entomological Soc, 

 1893, p. 128. (Plate XII, figures 8 to 8 f.) 



This species has been found twice, at Woods Hole in 1883, and 

 at Clarendon Hills, south of Boston, in 1904, under leaves in winter 

 in a maple swamp, both specimens females. The male was found 

 in 1906 at Portland, Me. 



The length is 5 mm. and the length of the cephalothorax 2.5 mm. 

 The cephalothorax is one half longer than wide, and the projecting 

 middle eyes and the black bands narrowing toward the front make 

 it appear longer and more pointed at the head than in the nearly 

 related species. The middle eyes of the front row are as large as 

 those of the upper row, which is unusual in this family, and the 

 four middle eyes form a quadrangle longer than wide and nearly 

 as wide in front as behind. The front middle eyes project forward 

 over the mandibles. The mandibles are wide in front, with long 

 claws and have seven teeth in front, the middle one-half the 

 diameter of the mandible in length. On the under side of the 

 mandibles are five or six shorter teeth, PI. XII, fig. 8d. 



The abdomen is shaped as in Linyphia phrygiana and Bathyphantes 

 nebulosa, high in front and low and pointed behind. 



The colors are translucent, white and black or dark gray, all 

 becoming yellow in alcohol. The cephalothorax has two wide black 

 bands at the side that cover more than half its surface, leaving a 

 middle light band narrowing behind and toward the front. The 

 dark bands do not quite extend to the sides of the head or much 

 below the eyes in front. The back of the abdomen is marked with 

 a series of pairs of dark spots, in one specimen united on the 

 posterior half, so that half of the back is entirely black. The legs 

 have wide dark bands around the ends and middle of the longer 

 joints. The sternum is gray, darkest at the sides and the coxae are 

 gray at the outer ends. 



The epigynum is curved downward in a half circle and widened 

 at the end, PI. XII, fig. 8f. At the base it is as wide as long, with an 

 opening at each side and a thin partition in the middle, PI. XII, fig. 8e. 



The markings are more distinct, and darker than in the European 

 lotigidens, of which there are specimens from Germany sent by 

 A. Menge of Danzig in the Museum of Zoology at Cambridge. 



The male resembles the female, except that the legs are longer, 

 and the top of the head above the eyes more hairy. The male 

 palpus resembles that of T. lotigidens: the tarsus has a long tooth 

 near the base on the upper and inner side which is curved back- 

 ward, but is not divided at the end into two teeth as it is in lotigidens. 



