66 PECKHAM. [Vol. 2, 



around the anterior eyes. Abdomen light brown in front, 

 darker behind, with some white hairs on the sides and in a 

 transverse band across the constriction. Legs liglit brown, 

 with pale bands. Palpi and entire under surface light brown, 

 with some white hairs on the venter. 



Habitat. Eastern part of United States. 



This species is much lighter in color than picata, and has 

 the sternum and coxse ofa uniform light reddish-brown; while 

 in picata the dark brown or black sternum make a contrast 

 with the light, testaceous coxse. With the other American 

 species, scorpiona, it can scarcely be confused, as it is much 

 larger and heavier. 



Habitat. Eastern part of United States. 



MARENGO N. 



Cephalothorax rather low and perfectly flat above, the 

 thoracic part being on the same plane as the cephalic for two- 

 thirds of its length, and then sloping gradually backward. The 

 clypeus retreats and the sides of the cephalic part slant inward, 

 while those of the thoracic are rounded outward. The quad- 

 rangle of the eyes is one-quarter wider than long, is a very little 

 wider behind than in front and occupies less than two-fifths of 

 the cephalothorax. The anterior eyes are in a straight row and 

 are placed close together, the middle being a little more than 

 twice as large as the lateral. The second row of eyes is nearer 

 the first than the third row. The dorsal eyes form a row which 

 is not c|uite so wide as the cephalothorax at that place, the 

 widest point of the cephalothorax being a little behind them. 

 The lip is about as wide as long. The first leg is heavily thick- 

 ened. 



MARENGO CEASSIPES N. SP. 



PI. Y., Fig. 4, female; 4a, face and falces ; 4b, side of 

 cephalothorax ; 4c, epigynum. 

 9 . Total length, 4 mm. 



Cephalothorax: Length, 1.8 mm.; width 1.1 mm. 

 Legs, 4132 ; 1st much the stoutest. 



