Sjnders captured in Canada, 81 



traced extending along the middle of the upper part of the ab- 

 domen. 



25. Epeira canadensis. 



Length of the female jth of an inch ; length of the cephalo- 

 thorax y ^ '} breadth -^-^ ; breadth of the abdomen ^ ; length of an 

 anterior leg /^ y l<?ngth of a leg of the third pair l. 



Ccphalo-thorax rather small, compressed before, somewhat 

 pointed in front, very convex, with a large, longitudinal indenta- 

 tion in the middle of the posterior region ; it is of a dull yellowish 

 brown colour, and the anterior part, which has a brown spot on 

 each side of the medial line, is sparingly covered with hoaiy hairs. 

 Eyes disposed in two transverse rows on the anterior part of the 

 cephalo-thorax ; the four intermediate ones are seated on an ob- 

 tuse prominence and form a square, those of the posterior pair, 

 which are placed on black spots, being the largest of the eight ; 

 the eyes of each lateral pair are the smallest, and are placed on a 

 minute tubercle, but neither obliquely nor contiguously. Man- 

 dibles powerful, conical, vertical, rather long, somewhat diver- 

 gent at the extremities, and armed with two rows of teeth on the 

 inner surface : maxillae short, strong, enlarged and rounded at the 

 extremity : lip semicircular and pointed at the apex : these parts 

 are dull yellowish brown. Sternum heart-shaped, brown. Legs 

 moderately long, slender, provided with hairs and spines ; first 

 pair the longest, then the second, third pair the shortest ; they 

 are of a dull yellowish brown colour, marked with obscure brown 

 annuli, the annulus at the extremity of each femur being the 

 largest and most conspicuous. Palpi dull yellowish brown. Ab- 

 domen somewhat triangular, with an obtuse prominence above 

 the spinners ; it is thinly clad with hairs, convex above, project- 

 ing over the base of the cephalo-thorax ; its general colour is dull 

 yellowish brown, the upper part having a large, dark brown, 

 festooned band extending along the middle and tapering to the 

 spinners ; this band comprises several transverse dull yellowish 

 brown bars, the anterior one, which is much the lai'gest, being 

 crescent-shaped with its convexity directed forwards. 



The specimen from which the above description was made had 

 not attained to maturity, as the organs of reproduction were not 

 fully developed. 



Genus Tetragnatha, Latr. 



26. Tetragnatha armigera. 



Length of the female, not including the mandibles, |ths of an 

 inch ; including the mandibles ^ ; length of the cephalo-thorax ^^^ 

 breadth ^^', breadth of the abdomen y^ ; length of an anterior leg 

 1 j^ length of a leg of the third pair J. 



