COLEOPTERA OF BAJA CALIFORNIA. 417 



granules each with a minute spine-like hair. Head mod- 

 erately coarsely, not densely punctured. Thorax broader 

 than long, slightly narrower in front, sides feebly arcuate 

 with a slight sinuation posteriorly, the hind angles acute, 

 disc moderately convex, a faint trace of a median groove, 

 coarsely and closely punctured, denser at the sides. 

 Elytra broadest behind the middle, humeri distinct but 

 not rectangular, marginal ridge nearly reaching the apex, 

 disc feebly convex transversely with three vittce (one close 

 to the suture) formed of minute granules each with a 

 minute hair, a few scattered granules in the interspace 

 next the margin, otherwise quite smooth. Prothorax be- 

 neath punctate at middle, granular at the sides. Meso- 

 and sides of metasternum coarsely granular. Abdomen 

 moderately finel}^ not closely punctate bearing short hairs. 

 Legs roughly punctured. Length, .70-. 82 inch; 18-21 

 m m . 



This species has no closely related form in our fauna, 

 although not very different in outline from inoricoides of 

 Mexico. It wi'l however be easily known by the feebly 

 convex disc of elytra (rather less convex than in opaca) 

 and b}' the replacement of the costal by rows of minute 

 setigerous granules. 



Pescadero, west side. 



AsiDA DENSicoLLis n. sp. Plate vii, fig. 5. 



Very like cariiiata or h if urea in general form, black, 

 dull. Head densely punctured. Thorax trapezoidal, 

 wider than long, widest one-third from apex, apex feebly 

 emarginate, angles not prominent in front, sides arcuate 

 in front, oblique behind, hind angles rectangular not 

 prominent, disc rather strongly convex densely and rather 

 roughl}^ punctate, more roughened at sides and base. 

 Elytra oval, broader behind the middle, one-half longer 



