COLEOPTERA OF BAJA CALIFORNIA. 25 1 



sis of Galerucini of Boreal America (Trans. Am. Ent. 

 Soc. 1893, p. 108). It is, however, quite certain that 

 some other use or arrangement of characters must be 

 adopted for the genera of the group Luperites as defined 

 by Chapuis. 



Sierra San Lazaro, Sierra El Chinche. 



SCELOLYPERUS CYANELLUS n. Sp. 



Form elongate, piceous black, moderately shining, 

 elytra violaceous, blue or bluish-green. Head smooth. 

 Thorax quadrate, very little longer than wide, sides very 

 feebly arcuate, anterior angles slightly nodiform, hind 

 angles sharply rectangular, disc moderately convex, 

 smooth. Elytra one-half wider than the thorax, twice as 

 wide as long, disc moderately convex, sparsely punctulate. 

 Body beneath piceous or blue-black, sparsely punctulate 

 and pubescent. Legs black, femora bluish, alutaceous, 

 the anterior and middle cox^ and all the trochanters yel- 

 low. Length, .12-. i6 inch; 3-4 mm. 



The males have the posterior tibiae straight. Variations 

 occur which seem to be merely due to immaturity — the 

 antennse may be brownish-yellow and the under side of 

 prothorax, tibise and tarsi yellowish-testaceous. 



This species lesembles a diminutive form of that variety 

 of niaculicollis with black thorax. 



El Taste and San Jose del Cabo. 



Triphalus cribricollis n. sp. 



Piceous black, feebly shining. Head moderately 

 coarsely and closely punctate with a slight tendency to 

 become strigose ; mandibles more densely and finely 

 punctate. Thorax quadrate, slightly broader than long 

 and slightly narrower in front, sides very slightly arcuate, 

 base arcuate, disc convex coarsely and closely punctate, 

 each puncture (as on the head) bearing a short yellow 



