COLEOPTERA OF SOUTHERN CALIFORNIA. 251 



Described from specimens collected on San Clemente 

 Island. 



D. elemental is a near ally of D. dissimilis, but is quite 

 distinct from the latter species because of its stouter 

 form, more strongly aeneous lustre, longer, less uniform 

 pubescence, and entirely pale legs. 



65. Dasytastes insularis, sp. nov. 



Black, elytra slightly bronzed; head, prothorax, legs, and antennae, 

 except the three outer joints, rufous. Pubescence much inclined and 

 without trace of erect hairs; punctuation rather tine and sparse throughout, 

 a little coarser toward the base of the elytra than elsewhere. Head a little 

 convex, front scarcely impressed, eyes moderately prominent. Antennae 

 subequal in length to the head and prothorax, joints four to ten as broad 

 as long, the outer submoniliform; eighth a trifle smaller than the seventh 

 and more evidently smaller than the ninth; eleventh as long as the two 

 preceding combined. The eighth joint is usually quite pale like all that 

 precede, but is sometimes a little obscure. Prothorax unusually convex, 

 about one-third wider than long, widest near the middle, base and apex 

 subequal; sides rather strongly rounded, and distinctly sinuate before the 

 hind angles, which are obtuse but denned; margin serrulate and with an 

 even fringe of recurved hairs; pubescence dark. Elytra about two-thirds 

 longer than wide, widest behind the middle, strongly transversely im- 

 pressed from side to side behind the base, the sides sinuate behind the 

 humeri; apex obtusely rounded; pubescence luteo-cinereous in the trans- 

 verse impression and at the apex, but otherwise dark. Beneath finely 

 punctate and sparsely pubescent. 



Length, 1.8-2 mm. 



Specimens taken on Santa Catalina Island. 



D. insularis is a very singular species, which how- 

 ever must be placed in Dasytastes because of its feeble, 

 ungual appendages and the lack of lateral rugose area 

 on the pronotum. It is without much doubt confined 

 to the island. It should follow D. bicolor in Casey's 

 table. 



66. Elasmocerus calif ornicus, sp. nov. 



This Californian species, which passes as terminatus 

 in some collections, and as " n. sp." in others, seems 



