2»8 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



sides. Cephalothorax longer than usual; posterior eye-row as broad as the 

 anterior row. Third pair of legs plainly longer than the fourth; patella III 

 simple. 



One male; Hermosillo. 



297. Habrocestum cinctipes, sp. nov. 



Plate XVII, Fig. ii. 



Length ? 6 mm.; ceph. 2.3 mm. long, broad 1.7 mm. Cephalothorax dark 

 red-brown, clothed with white hairs and black bristles, latter very numerous in 

 the eye-region; clypeus dark, with long whtte hair on the margin; palpi pale, 

 yellow-haired; anterior pair of legs dark, pale at bases of patellae, tibiae, and 

 metatarsi, other pairs pale, all joints dark at bases and tips; sternum dark; 

 abdomen light gray, a large long brown stripe above with projections on its 

 sides and containing some pale chevrons behind; sides and venter light gray. 

 Cephalothorax rather slender. Abdomen high and convex, pointed behind, 

 truncate at base. 



One specimen from Sierra San Lazaro, Sept. It is sep- 

 arated from the other species by its banded legs and by the 

 narrowness of the abdominal markings. 



298. Habrocestum dubitatum, sp. nov. 



Plate XVII, Fig. 10. 



Length $ 7 mm. ; ceph. 2.9 mm. long, broad 2 mm. Cephalothorax red- 

 brown, obscure, darker in the eye-region, clothed with whitish hair and 

 blackish bristles; clypeus white, with long white hair; mandibles black; palpi 

 and legs and sternum pale; abdomen pale on sides and below, above mostly 

 brownish, with a median white stripe behind and two side spots. 



One example; San Jose del Cabo. 



299. Habrocestum, sp.? — Two small specimens (females) 

 apparently of different species; one from Hermosillo, with 

 pale legs; it cannot be the female of H. dorsalis, as it has 

 a much broader cephalothorax and looks quite different. 

 The other with dark legs is from Orizaba. Both are ob- 

 scurely marked and unknown to me and are better not de- 

 scribed. 



300. Zygoballus parvus Hentz. — A few female speci- 

 mens from Tepic. 



