74 Wisconsin Academy of Sciences, Arts and Letters. 



Legs 3.8, 3.5, 4.1, 4.8; cephalotliorax much longer than patella and tibia of 

 the first; patella and tibia of the third shorter than patella and tibia 

 of the fourth; jDatella and tibia of the fourth and metatarsus and 

 tarsus of the fourtli equal. 



Cephalotliorax low, flat, a little contracted behind, with sides nearly verti- 

 cal in front, and slightly rounded posteriorly; cephalic part not in- 

 clined; thoracic part level in the first half, then falhng steeply. 

 Ocular area occupying a little less than two-fifths of cephalotliorax, 

 one-fourth wider than long, equally wide in front and behind. An- 

 terior eyes sub-touching, in a straight row; middle scarcely twice 

 as large as lateral eyes; eyes of second row halfway between lateral 

 and dorsal eyes; dorsal as large as lateral eyes, further from each 

 other, nearly as wide as cephalotliorax at that place. Clypeus 

 scarcely perceptible. Falces as wide as first row of eyes, a little 

 longer than face, vertical, parallel; fang short and weak. Maxillge 

 parallel, enlarged at extremity, ( 3 ) with small projection at outer 

 corner. Labium more than one-half as long as maxillge, longer than 

 wide, contracted and rounded at tip. Sternum one-fourth longer 

 than wide, truncated in front. Anterior coxae separated by width of 

 labium. Legs nearly equally stout; femoral, tibial and metatarsal 

 spines on the four pairs; on tibiae and metatarsi of the third and 

 fourth more above than below; metatarsi of the fourth spined 

 throughout their length. 



Coloration. S . Cephalothorax with thoracic part dark brown, and 

 cephalic part with short rufus and long black hairs, three reddish 

 tufts appearing between the anterior eyes, which are surrounded by 

 red rings; there are three longitudinal white bands, one central, 

 running from the anterior eyes to the posterior border, and one on 

 each lower side above the black marginal line. Clypeus covered 

 with yellowish white hairs. Abdomen dark brown or blackish with 

 a central longitudinal abbreviated white line not reaching the mid- 

 dle, and, on each side, a longitudinal white line which reaches beyond 

 the middle, posterior to which are three transverse curved white 

 marks, one behind the other. Falces and mouthparts dark brown. 

 Palpi covered with thick white hairs above, and sparse black hairs 

 below. Sternum, cox^ and legs light brown, the legs with darker 

 rings, and tipped with black. Venter covered with wliite hairs. 

 6 . Cephalothoi-ax resembling that of $ but with a greater ten- 

 dency to reddish color in the eye region, with the white of the 

 bands not so clear, and with the central band extending only from 

 the dorsal eyes to the posterior border. Abdomen dark brown or 

 blackish, with a wide, notched, central, longitudinal white band ex- 

 tending nearly to the apex, just behind which, on each side, is a 

 short, oblique, white line; there is a white transverse band at the 

 apex, and, on each side of the dorsum, a longitudinal row of four or 





