250 CALIFORNIA ACADI5MY OF SCIENCES. 



This species is not particularly related to any in the 

 Boreal fauna, but is probably nearer chiriquensis, although 

 from description abundantly distinct. 



One specimen. San Jose del Cabo. 



LUPERODES HISTRIO n. Sp. 



Form oblong, color variable above, beneath yellowish, 

 metapectus piceous. Antennae rather longer than half 

 the body, testaceous, the apex and front edge of each 

 joint piceous. Head smooth, blue or green, the front 

 yellow. Thorax slightly wider than long, not narrowed 

 in front, sides slightly arcuate anteriorly, a feeble sinua- 

 tion posteriorly, hind angles acute, the anterior slightly 

 nodiform, disc moderately convex, scarcely perceptibly 

 punctulate. Elytra wider than the thorax, twice as long 

 as wide, sides nearly parallel, disc moderately convex, 

 sparsely regularly, finely punctate. Body beneath yel- 

 low, sides of metapectus piceous, surface sparsely punc- 

 tate with short hairs. Femora yellow, with upper edge 

 and apex piceous, tibiae and tarsi piceous. Length, .16— 

 .22 inch; 4-5.5 mm. 



This insect is very variable in color. 



Typical form: Head bicolored; this is constant in all 

 the varieties. Thorax yellow. Elytra violet-blue to green, 

 with an elongate yellow spot from base to middle, narrow- 

 ing behind, an oval spot near the apex. 



Variety : Thorax piceous with greenish surface lustre, 

 the borders very narrowly pale. Elytra greenish, a basal, 

 elongate oval pale, spot. 



Variety: Thorax entirely yellow. Elytra almost en- 

 tirely yellow, with a very narrow greenish margin all 

 around and along the suture. 



This species is placed in Luperodes, or rather the gen- 

 eric name is adopted for reasons given by me in a synop- 



