Attidce of North America. 35 



PLEXIPPUS PUTNAMII Peckham. 

 Plate III, figiu-e 24. 



Syn.: 1883. AitXjS imtnamii P., Descriptions of new or little known At- 

 tidae, p. 1. 



5. Total length 9 mm. Width of abdomen 2.6 mm. 



Cephalothorax: length 4.5; width 3.3; height 2.3. 



Cephalothorax high, convex, widest just behind dorsal eyes; cephalic a 

 nttle shorter than thoracic part; rounded on the sides and slanting 

 abruptly behind. Ocular area nearly twice as wide as long; wider 

 behind than m front; anterior row of eyes a little curved; lateral ^ 

 as large as middle eyes, and separated from them by t their own di- 

 ameter, while the middle eyes are slightly separated from each other; 

 eyes of the second row a very little nearer the lateral than the dorsal 

 eyes; dorsal nearly as large as lateral eyes, further from each other 

 than from the lateral borders, forming a row which is a little nar- 

 rower than the cephalothorax at that place. Clypeus \ as high as 

 middle eyes. Falces extending in width to inner edges of lateral 

 eyes, square, 1^ times as long as the face, vertical, parallel; fang 

 small. Maxillee parallel, truncated at tip, cut obliquely on the inner 

 edges; labium i as long as maxillae, as wide as long, pointed. Ster- 

 num very deep-set, oval, projecting between the anterior coxae, 

 which are separated by less than the width of the labium. Eelative 

 length of legs 4, 3, 1, 2; first and second pairs stoutest. Femur of 

 the first rather short, narrow at the ends, and much enlarged below, 

 in the middle. All the legs have femoral, tibial and metatarsal 

 spines, and there are patellary spines on the third and fom-th; met- 

 atarsi of the fom-th spined throughout their length. . 



Coloration: Cephalothorax reddish brown; there is a large white spot just 

 behind the dorsal eyes, and a short white band on each side of 

 the eye-region extending from th9 smaller median to the dorsal eyes; 

 just back of the small median eye is a tuft of black hairs; there are 

 thick, light brownish hairs above the anterior row of eyes. Abdo- 

 men light reddish brown, encircled by a white band; near the apex 

 two short, transverse, parallel, white bars, on each side, extend from 

 the encircling band toward the middle of the abdomen; at about 

 the middle point of the dorsum is a large white spot, and near the 

 base are two small, indistinct, white spots formed by a few white 

 hairs. Clypeus covered with short red and long wliite hairs. Palpus 

 brownish, with black and white hairs. Mouthparts, sternum and 

 coxee dark brown, sternvun and coxae covered with white hairs. Ven- 

 ter covered with whitish hairs, with a centi-al, longitudinal, darker 

 band. Legs brownish red with many long white hairs. 



Habitat: Iowa. 



