Attidce of North America. 81 



more than one-half as long as maxilte, as wide as long; contracted 

 and bhmt at tip. Sternum one-half longer than wide, a little nar- 

 rower in front than behind. Anterior coxae separated by scarcely the 

 width of the labium. Femoral, tibial and metatarsal joints of the 

 first and second pairs enlarged. Metatarsi and tarsi slender; femoral, 

 tibial and metatarsal spines on the four pairs; metatarsi of the fourth 

 spined throughout their length. 



Coloration: Cephalothorax rufus, darkest in the eye region, with short 

 dense gray hairs, and a few long black hairs on each side in front; 

 lower borders black; abdomen dark brown with the central region 

 occupied by a wide, light gray, scalloped, longitudinal band; clypeus 

 covered with long white hairs; falces dark reddish brown; sternum 

 brown; palpus with a short brush of black hairs; legs dark brownish 

 red, covered with adpressed white and upright black hairs. Venter 

 pale gray, with a central longitudinal brown band which tapers to a 

 point near the a^jex. 



Hahitat: United States, Mexico. 



MARPTUSA CALIFORNICA Nov. Sp. 



- Platel, fiKUi-e61. Plate V, figure 61. Plate VI, figure 61 a. 



$ . Total length 9.2 mm. Width of abdomen 2.4 mm. 



Cephalothorax: length 3.8; width 2.9; height 1.8. 



Legs 8.4, 7.4, 7.5, 8; patella and tibia, 3.6; patella and tibia of the third, 3; jsa- 

 tella and tibia of the fourth, 3.5; metatarsus and tarsus of the fourth, 

 9.5. 



$ . Total length 9 mm. Width of abdomen 2.4 mm. 



Cephalothorax: length 3.8; width 2.9; height 1.5; relative length of legs, 

 4, 1, 2~3. 



Ocular area occupying a little more than one-third of cephalothorax, one- 

 third wider than long, equally wide in front and beliind. Anterior 

 eyes in a slightly curved row; lateral one-half as large as middle eyes, 

 separated from them by one-half their diameter; middle eyes sub- 

 touching; eyes of second row very sUghtly nearer lateral tlian dorsal 

 eyes; dorsal not quite so large as lateral eyes, ( $ ) shghtly nearer each 

 other than lateral borders, (?) further from each otlier, forming a 

 line narrower than cephaloth orax at that place. Clypeus vertical, 

 one-half as high as middle eyes. Falces rather short and weak, ver- 

 tical, parallel. Maxillee parallel, enlarged and rounded at extremity. 

 Labium more than one-half as long as maxillae, as wide as long, 

 rounded at tip. Sternum nearly plane, one-third longer than A\-ide, 

 widest in middle. Anterior coxee separated by a little less than the 

 wdth of labiiim. Femoral, patellary anc\ tibial .joints of the first 



