COLEOPTERA OF BAJA CALIFORNIA. 361 



surface smooth. Elytra very indistinctly six-striate, striee 

 not punctured, the sutural alone entire. Body beneath 

 black, smooth. Length, .11 inch; 3 mm. 



This species more nearly resembles a Blechrus by its 

 slender less depressed form and by the very narrow tho- 

 racic margin, but it cannot be associated with that genus 

 as the base of the thorax is truncate. It differs from all 

 the known species of Apristus by its decidedly blue color 

 and the very feebly impressed strite. 



San Jose del Cabo. 



Callida rugicollis n. sp. 



Oblong, depressed, piceous black, feebly shining, a 

 slight greenish surface lustre more evident on the head 

 and thorax. Antenna? black, first joint testaceous be- 

 neath. Head nearly smooth. Thorax wider than long, 

 slightly wider at base than at apex, sides moderately ar- 

 cuate, feebly sinuate posteriorly, disc convex, slightly de- 

 pressed along the sides, margin reflexed, median im- 

 pressed line entire, surface with transverse and slightly 

 undulating rugce. Elytra finely striate, strise entire, 

 finely and closely punctate, intervals flat, very evidently 

 punctate, less distinctly toward the apex, third interval 

 with four dorsal punctures. Body beneath smooth and 

 shining, with evident aeneous lustre, a few punctures at 

 sides of metasternum. Length, .40— .44 inch; 10— 11 mm. 



This species belongs to the group in which the males 

 have two or three and the females two anal setse. It 

 seems to be allied to obscura Dej. by the punctate elytral 

 intervals and the transversely wrinkled thorax. C. ^lan- 

 idata Lee. is also probably related, but that species is 

 not now in hand for comparison. 



Coral de Piedra, Sierra El Taste, Pescadero and San 

 Jose del Cabo. 



2d Sek., Vol. IV. ( ^4 ) August 3, 1894. 



