256 Journal New York Entomological Society. t^'°'- ^-^■ 



the Horn series of crihrosns. As I had suspected, the Owens Valley 

 specimens prove to belong to an entirely distinct species — the nccopi- 

 nus n. sp. of the present paper. The true crihrosns appears to be 

 strictly confined to the coast line of the Pacific, ranging from British 

 Columbia to San Diego, Cal., and very likely into the Peninsula. 

 C. parvus Schaef. Can. Ent., June, 19 12, p. 185. 



Head black, finely punctate, labrum and epistoma yellow. Prothorax small, 

 rufous, immaculate — rarely with black spot — smooth, % or ^i wider than long, 

 sides very broadly arcuate. Elytra green or blue, dilated posteriorly, punctua- 

 tion dense, about as in tricolor. Antennae (c^) piceous, the basal joint yellow 

 with a black spot; ($) basal joint pale, 2-4 bicolored, following joints piceous. 

 Abdomen rufous with lateral black spots. Femora black, tibise and tarsi pale. 

 Length 3-3 M mm. 



Douglass, Arizona (Snow); Thornton, N. Mex. (Fenyes) ; S.W. 

 Texas (Horn Coll.). Schaeffer describes simply from Arizona. 



This species resembles tricolor in color but is smaller, and nar- 

 rower anteriorly, the prothorax but little more than half as wide as 

 the elytra. The color of the legs is quite constant in the four ex- 

 amples before me and quite different from tricolor. The basal joint 

 of the antennae in the c? is strongly angulate in front and obviously 

 sinuate posteriorly (not so in tricolor), the large joint piceous on its 

 convex face. 



There are specimens of this species in the LeConte collection 

 bearing the MS. name fcmoratus, which was evidently unpublished. 

 Gorham uses this name for a Guatemalan species and the description 

 fits the present insect very well, but the length, which is said to be 

 5^-6 mm., is so great as to make the identity of the two altogether 

 improbable. I am much inclined to believe that the species referred 

 to as punctatus on p. 316 in the supplement to Vol. HI of the Biologia 

 is the one here described and not the true punctatus. 



C. tricolor Say (Malachius). Jour. Acad. Nat. Sci. Phila., Ill, 1823, p. 183. 



" Head black ; labrum, clypeus on its anterior margin and palpi at base 

 rufous ; antennae pale rufous, dusky at tip ; thorax transverse, nearly oval, rather 

 short, rufous, immaculate ; elytra dark bluish green or somewhat violaceous, 

 middle of th^ lateral edge obsoletely piceous ; postpectus and feet deep black ; 

 venter testaceous." 



The above is the original description of Say, to which I may add, 

 that in the specimens at hand the prothorax is polished and subim- 



