322 ^Yisco7^sin Academy of Sciences, Arts, and Letters. 



quadrangle is one-fourth wider than long, occupies more than 

 two-fifths of the cej^halothoraXj and is but little wider behind 

 than in front. 



We have no perfect specimen, but the coloring seems to be as 

 follows : The hairs on the sides of the cephalic part, and in a 

 band along the upper sides of the thoracic, are white ; on the up- 

 per surface of the cephalothorax, on the lower sides of the thor- 

 acic part, and in a median band on the slope of the thorax, sep- 

 arating the extremities of the white band, they are yellow. On 

 the clypeus thej are long, thick and white ; and around the mid- 

 dle eyes of the front row they are yellowish. There is a narrow 

 wliite line around the lower margin of the cephalothorax. The 

 front end and the sides of the abdomen are covered with snow- 

 white hairs. The dorsum shows traces of vellow hairs. On 



t. 



the posterior part there are two pairs of slightly curved trans- 

 verse white bands which come up from the sides, very much as 

 in D. duhiiahilis and in several species of Zygohallus. In the 

 male the first leg has the femur dark brown with a row of brown 

 hairs, not thick enough to be called a fringe, above, and another 

 below. The patella is light, the tibia dark with a fringe of 

 .broA\Ti hairs on the inner side, the metatarsus light in the proxi- 

 mal and dark in the distal end, and the tarsus dark. The second 

 "has the femur dark, the patella light but darkening a little at 

 the distal end, the tibia dark and the metatarsus and tarsus light. 

 The third and fourth have the femur dark, tending toward 

 lighter at the proximal end, the patella and tibia light, darken- 

 :ing at the distal ends, and the metatarsus and tarsus light. In 

 'the femxale the first leg is dark except the metatarsus and tarsus, 

 which are lighter, and the second, third, and fourth are light 

 bro^m, the joints tending to grow a little darker at the distal 

 ends. The falces project a little, and are broT^m, with some yel- 

 lowish hairs on the inner face. The palpus is bro\\Ti with white 

 hairs on the femur, these being more marked in the male than 

 in the female. The maxillae are truncated and project at the 

 outer corner. They are twice as long as the labium which is but 

 little longer than wide. 



Whe have numerous examples from Chapoda. 



