408 CALIFORNIA ACADEMY OF SCIENCES. 



the costae well marked. Body beneath more shining, 

 slightly blue or green. Abdomen finely punctured. 

 Length .26— .32 inch.; 6.5—8 mm. 



In the male the last ventral is shorter and less produced 

 at middle, the last dorsal is more acute. In the female 

 the last ventral is quite acutely produced at middle. 



This species resembles ?'iiJicoIh's, but the sculpture of 

 thorax will readily separate the two species. 



California and Nevada. 



Chrysanthia Schmidt. 



Form slender. Head moderately elongate. Eyes en- 

 tire, rather finely granulate. Antennae slender, eleven- 

 jointed in both sexes, inserted at a distance from the eyes. 

 Terminal joint of maxillary palpus triangular, widest be- 

 vond the middle. Mandibles bifid at tip. Tibia? with 

 two terminal spurs. Penultimate joint of tarsi alone 

 spongy-pubescent beneath. Claws simple. 



In this genus I place one species, which, from its 

 appearance, has been associated in all collections with 

 Oxacis (bicolor ). 



Chrysanthia repanda n. sp. 



Form slender, piceous black, thorax and front of head 

 reddish yellow, elytra often bluish. Head black, in front 

 of antennae yellow, moderately coarsely, not closely punc- 

 tate. Antennae black, the second joint two-thirds as long 

 as the third. Thorax cylindrical, slightly arcuately 

 broader in anterior half, sparsely punctate, disc some- 

 what uneven. Elytra parallel, closely punctate, finely 

 tricostulate, sparsely clothed with short gray pubescence. 

 Body beneath and legs black. Abdomen sparsely punc- 

 tate. Length .18-.30 inch. ; 4.5—7.5 mm. 



This insect so closely resembles Copidita bicolor that, 



