XXXI, '20] ENTOMOLOGICAL NEWS 243 



the prosternum as well as the shape of that sclerite (Fig. i) 

 is different. In prosternalis the depression near the border 

 of the prosternum extends only down each side, the hairs 

 are short and scattered, the surface is smooth and shining. 

 In robusta the hairs are "thick, extend entirely around and 

 the surface lacks any luster. 



The last ventral segment of prosternalis is stated to be 

 truncate; in my specimen it is slightly sinuate, while in ro- 

 busta it is squarely cut off, almost twice as broad as in pros- 

 ternalis and lacks the definite spines of the latter. Our 

 four* species are, I believe, very readily distinguished a< 

 follows : 



1. Front coarsely, evenly punctate, metallic coppery color, with no prom- 

 inent callosities. Clypeus broadly emarginate, rounded at each corner. 

 Length 8 mm C. purpurescens Schaeffer 



2. Front with scattered, coarse punctures, dull blackish violet with faint 

 greenish tinge. A depression at the vertex and an irregular callosity 

 extending across the middle. Clypeus broadly, slightly emarginate, 

 corners angulate. Length 14.5 mm C. robusta n. sp. 



3. Front coarsely punctate, shining green, with callosities more or less 

 resembling an inverted W. Clypeus more deeply emarginate, angles 

 sharper, edges thickened. Length: 13 mm. .C. prosternalis Schaeffer 



4. Front densely, moderately coarsely, punctate. Coppery bronze, 

 metallic, with a shining green callosity in the shape of an inverted Y. 

 Clypeus triangularly emarginate. Length: n mm. 



C. gracilipes Melsheimer 



There is, I believe, ample reason for separating the above 

 species into different genera as suggested by Colonel Caseyf, 

 but this could only be done by one thoroughly familiar with 

 exotic genera. 



Ultimately the species mentioned above will probably 

 fall into three separate genera. C. gracilipes Mels. in one, 

 purpurescens Sch. in another and C. prosternalis Sch. and 

 robusta n. sp. in the third. 



Agaeocera scintillaiis Waterhouse. 



This beautiful buprestid has not heretofore been reported 

 as occurring in the United States. Dr. Frank Lutz kindly 



* I am unable to distinguish Col. Casey's C. inacilenta from C. gracil- 

 ipes Mels. 



t Casey, Proc. Wash. Acad. Sci. XI, p. 176 (1909). 



