Sjnders captured in Canada^ 1^^ 8^ 



"Length of the female |^bf all iachj length' >cf/ the ccphalo- 

 thorax i ; breadth /^j ; breadth of the abdomen 2% ; length of a 

 leg of the fourth pair ^^ ; length of a leg of the second pair I. 

 >jii;|jcgg short and robust; the anterior ones, in particular, are 

 pitiWerful, and have the femora dilated ; they are amply provided 

 with hairs and strong spines, and are reddish brown marked with 

 dark brown, the latter colour forming obscure annuli at the base 

 of the tibiae and at each extremity of the metatarsi ; fourth pair 

 the longest, then the first, second pair slightly shorter than the 

 third ; below the claws is a small scopula. The palpi are short, 

 red-brown, and are abundantly supplied with long whitish hairs. 

 Cephalo-thorax large, depressed, and somewhat quadrilateral ; it 

 is red-brown, with black lateral margins, which taper from the 

 posterior to the anterior extremity, and the area bounded by the 

 eyes is dark brown ; the red-brown parts are covered with gray- 

 ish hairs, those below the anterior row of eyes being long and 

 whitish. Eyes very unequal in size, disposed in three rows, con- 

 stituting three sides of a square, in front and on the sides of the 

 cephalo-thorax ; the intermediate eyes of the frontal row are much 

 the largest, and the intermediate eye of each lateral row is much 

 the smallest of the eight. Mandibles short, strong, vertical, gib- 

 bous near the base, in front, and armed with a few teeth on the 

 inner surface : maxillae straight, enlarged and rounded at the 

 extremity : lip oval : sternum oval : these parts are dark brown ; 

 the mandibles are the darkest, the sternum is much the palest, 

 and the maxillse and lip are tinged with red at the extremity. 

 Abdomen of an elongated oviform figure, not quite twice the 

 length of the cephalo-thorax, over the base of which it projects 

 a little ; it is thickly covered with hairs, and has a broad, den- 

 tated, grayish band, somewhat ramified at its posterior extremity, 

 extending along the middle of the upper part, on each side of 

 which is a longitudinal, brownish black band; sides yellowish 

 brown, mottled with dark brown spots; under part yellowish 

 brown, with a large brown band in the medial line, which tapers 

 to the spinners. Plates of the spiracles dull yellow, -viji^ij'i u-.- 



The male bears a general resemblance to the female, but it is 

 smaller, darker-coloured, and the relative length of its legs is 

 different, the first pair being the longest, then the fourth, and 

 the third pair being rather shorter than the second. The max- 

 illse have a conical process at the extremity, on the outer side. 

 The palpi are short ; the humeral joint is curved, convex above, 

 plain underneath, with long hairs fringing the edges ; it has a 

 short, fine, pointed, pale brown spine near its anterior extremity, 

 in front, and a strong conical projection near its base, on the 



