354 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



Ill scahrosa the coarse sculpturing as well as the setose propleurse 

 will serve to differentiate it from horrdi. 



Three males out of the five specimens before me were collected at 

 Mokelumne Hill, Calaveras County, and are no doubt heterotypical ; 

 they are subopaque, larger, the elytra are a little more strongly sculp- 

 tured than in the types; the prothorax is a little more strongly con- 

 stricted at the base and the basal angles are rectangular. 



The narrow elytral base, with the sides very gradually widening 

 to the middle, and the obsolete humeri {nee Plate 12, fig. 33) give 

 hotviii a characteristic facies, the prothorax appearing somewhat 

 remote from the elytra. 



General ohser rations. — The mentum is rather small and subpara- 

 bolic in outline; the surface is distinctly convex at the middle and 

 subfoveate laterally ; the punctures are fine and quite dense lateralh', 

 not noticeably setose. 



The prosternum in the types before me is not suddenly protuberant 

 ventrally with the coxa% although rather strongly and gradually so, 

 evenly arcuate antero-posteriorly, and not in the least mucronate 

 behind, 



Mesosternum arcuately declivous, feebly and broadly concave. 



The metasternum laterally between the coxse is as long as the width 

 of a mesotibia at middle. 



The abdominal process is subquadrate and about a fourth of its 

 width broader than the metasternal salient, equal to the length of the 

 post-coxal portion of the same segment, and also to the second. 



In the male the third segment is about a fourth of its length 

 longer than the fourth. In the female the third is slightly shorter 

 than the second and about a fiftli of its length shorter than the fourth. 



The tarsi are moderate in length and rather slender. The protarsi 

 of the male are noticeably longer than in the female, and about a 

 fourth (male) or two-fifths (female) of their length shorter than a 

 mesotarsus. 



The mesotarsi are about a fifth (male) or about two-sevenths of 

 their length shorter than a metatarsus. 



The metatarsi about a half (male) or a third (female) of their 

 length shorter than a metatibia. 



Tarsal formula : 



Pro. Meso. Meta. Metatibia. 



Male.— 2 , 2j 3 4^ 



Female.— 1 5 2A ;} 4 



ELEODES PARVICOLLIS Eschscholtz. 



Elrodcfi iHinuoJIi.s Esciisciioi/rz, Z(X)1. Atlas, III, 1S;>3, p, 11. — Mannkr- 

 HEiM, Bull, Soc. Nat. Moscow, XVI, 1843, p. 271. — LeConti:. Proc. 

 Acad. Nat. Sci. Phil., 1858, p. 182,- Horn, Trans. Auier. Phil. Soc, 

 XIV, 1870, p. 317. 



