118 CALIFORNIA ACADEMY OF SCIENCES. 



ocular fringe distinct, composed of stiff curving hairs 

 which extend slightly on the temporal margin; temples 

 with posterior angles produced; four long pustulated 

 hairs, two shorter hairs, and one short spine on the 

 margin; occipital margin concave, with a series of six 

 long pustulated hairs and one spine; color of the head 

 light chestnut-brown, with dark brown ocular blotches 

 and black ocular fleck, and dark chestnut markings in 

 front, near the mandibles, which show through the head 

 distinctly ; occipital margin with a narrow chestnut 

 band, darkening into broad occipital blotches. 



Prothorax broad, sides rapidly converging posteriorly; 

 lateral angles narrowly rounding, with a short spine and 

 a long pustulated hair in the angle, a series of fourteen 

 strong hairs along the convex posterior margin; gen- 

 eral color dark chestnut-brown, except the space above 

 the conspicuous dark transverse chitin bar, which is 

 pale fuscous; the longitudinal bars, at the ends of the 

 transverse bar, are narrow but distinct. Metathorax 

 short, hardly broader than the prothorax; sides diver- 

 gent, with two spines on the lateral margins; two long 

 hairs and two short spines on the posterior angles; a 

 series of long pustulated hairs on the posterior margin 

 not so heavy, however, as those of the prothorax; color 

 chiefly dark chestnut-brown, transverse band darken- 

 ing into a narrow black line along the lateral margin, 

 and into a broad triangle in the posterior angles; in 

 front of this dark band, a pale, broad, mesosutural 

 band, and in front of this the pale brown mesothorax. 

 Legs of the palest fuscous of the prothorax, with sev- 

 eral short, stiff hairs on the femora and tibia. 



Abdomen broadly elliptical, with several short spines 

 on the lateral margins of the segments, and from one 

 to five long hairs in the posterior angles; a series of 



