122 BULLETIN 417, IT. S. DEPARTMENT OF AGRICULTURE. 



in its entire length except at base, where it is narrower, rather densely muricateb' 

 punctured and in well-preserved specimens of a greenish-bronze color. Under surface 

 and legs black and shining almost entirely smooth and impunctured. Length 0.54-0.68 

 inch; 14-17 mm. 



In most of the specimens before me the margins of the elytra immediately behind 

 the humeri have three or four very distinct serrations. This character is quite com- 

 mon in the species of the tnste group, but not seen in any of our species of the 

 group Callisthenes. 



On comparison the male of this species is found to be as broad as the female of 

 discors Lee, the elytral margin broader and the surface sculpture of a different order. 



Collected by Mr. Win. M. Gabb and myself in the elevated regions of the South 

 Sierras of California. 



Described by Horn * in 1870. The species has later been taken by 

 various collectors in several localities in California and in Reno, Nev. 



CALOSOMA AUROCINCTUM Chaud. 



(Syn.: C. splendidum Perbosc.) 



ORIGINAL DESCRIPTION. 



[Translation.] 



Length 11-13 lines. This species is very distinct from the true C. splendidum 

 Mannerheim, species from Haiti, as I have been able to convince myself by the exam- 

 ination of many individuals of each of the two species. Splendidum is of a beautiful 

 uniform coppery green, while aurocinctum is of a metallic green, approaching blue, with 

 the margins of the thorax coppery and those of the elytra of a brilliant coppery red. 

 Head less heavily punctate; longitudinal impressions of the face much more marked. 

 Thorax proportionately broader and more strongly rounded on the sides. Elytra less 

 elongate, broadening more posteriorly; stria? less heavily denticulate; intervals less 

 convex. Legs blue; the antennae, mouth parts, legs, and tarsi which are reddish in 

 splendidum, have a much darker color in aurocinctum. The habitat of this species is 

 Mexico. I believe that it has nothing in common with irilcoxi Lee. 



GENERAL NOTES. 



This species was described by M. de Chaudoir 2 in 1850. The author 

 bases his description on many individuals of this species collected in 

 Mexico and compares it with splendidum Mann, from Haiti. Bates, 

 in 1884, in his Biologia Centrali-Americana, listed splendidum Perbosc. 

 as a synonym of aurocinctum Chaud. 



Some years ago Mr. C. H. T. Townsend collected a specimen of 

 aurocinctum Chaud. in Brownsville, Tex., which is deposited in the 

 United States National Museum. The fact that a specimen has been 

 taken in the United States is the reason for its mention here. 



CALOSOMA DIETZH Schaef. 



ORIGINAL DESCRIPTION. 



Form of discolor, deep black, the reflexed elytral margin, base and sides of prothorax 

 with a bluish reflection. Head sparsely punctate and very feebly rugose, epistomal 

 impressions deep, causing a light convexity of the front; labrtim angularly emarginate. 

 rugose and impressed; mandibles stout, faintly rugose; antennae nearly as long as the 

 head and thorax, the outer joints at sides glabrous at base. Prothorax not quite twice 

 as wide as long, widest before the middle, sides arcuate anteriorly, becoming nearly 

 straight posteriorly, hind angles broadly arcuate and produced posteriorly, base slightly 

 arcuate-truncate, apex broadly emarginate, with a broad, flattened, impunctured 

 bead; disk moderately convex, basal angles feebly impressed and slightly reflexed, 

 surface very feebly rugose, finely and sparsely punctate, the punctures larger at sides, 



1 Horn, G. H. Contributions to the Coleopterologv of the United States. In Trans. Amer. Ent. Soc, 

 v. 3, p. 69-142, pi. 1 (p. 70), 1870. 



2 Chaudoir, Baron de. Memoire sur la famille des Carabiques. In Bui. Soc. Imp. Xat. Moscou, t. 23, p. 

 349-460 (p. 420), 1850. 



