COLEOPTERA OF BAJA CALIFORNIA. 419 



narrower than the thorax, humeri very obHquely rounded, 

 lateral marginal ridge reaching nearly to the apex, disc 

 moderately convex and with three costte, the outer be- 

 ginning at the lateral margin behind the humerus, extend- 

 ing near to apex and sinuous near its end, the second 

 costa does not quite reach the base, is sHghtly obhque to 

 the suture and indistinctly joins the outer costa near 

 apex, inner costa faint joining the next outer one fourth 

 from apex, these costaj and the lateral edge fimbriate at 

 their summits with extremely short hairs, surface very 

 finely and closely punctate. Pro-, meso- and metasterna 

 coarsely not closely punctate. Abdomen rather closely 

 and finely submuricately punctate with short yellow hairs. 

 Legs roughly puuctate and sHghtly hairy. Length, 

 .42-. 56 inch; 10. 5-14 mm. 



This species must be placed near farallehis differing 

 in its opaque surface, tricostate elytra and more narrowly 

 refiexed sides of the thorax. 



San Diego and Yuma, California. This species will 

 doubtless occur in Baja California. 



AsiDA EMBAPHiONiDES n, sp. Plate vii, fig. 8. 



Form rather slender and graceful, dull brown suture 

 and two lines on each elytron faintly paler. Head 

 coarsely and closely punctate. Thorax more than half 

 wider than long, slightly narrower between the basal than 

 the apical angles, apex deeply emarginate, base bisinuate, 

 sides regularly arcuate, disc flat, the margin broad and 

 widely reflexed, the edge slightly crenulate and with short 

 hairs, surface sparsely punctate, each puncture with a 

 short hair. Elytra less than twice as long as wide, widest 

 at middle, humeri very obhque, lateral margin sharp and 

 slightly reflexed, marginal line suddenly incurved one- 

 fourth from apex, thence obhque nearly to apex, disc 

 nearly flat transversely, surface with sparsely placed erect 



