26 FREDERICK BLANCHARD. 



ratliei-fleusely punctate, impressed behind the frontal margin, which is somewhat 

 depressed at middle ; thorax more finely and less densely puiictulate, convex, 

 feebly longitudinally impressed fi-om before the middle nearly to base, sides 

 strongly rounded, more narrowed in front, as long as wide and sinuate behind 

 in the % , wider than long, and less sinuate in the 9 - somewhat transversely 

 impressed each side at base, lobe broadly emarginate, fissures moderate, the outer 

 not evident, hind angles carinate. Elytra a little wider, subdepressed in the % , 

 very convex in the 9 , a little wider behind the humeri, which are distinct, then 

 parallel to near the apex, whence they are strongly rounded, striae, narrowly im- 

 pressed, punctures fine, rather distant, intervals moderately convex and punc 

 tulate. Body beneath finely not densely puuctulate, with apparent coarser 

 punctures intermixed on the sides of the prothorax as well as elsewhere, sub- 

 marginal lines of prothorax quite absent, iutercoxal process very short and 

 strongly attenuated and ascending behind, anterior lobe short and broadly 

 rounded, hind coxal plates prominent and produced between the legs, but not at 

 all dilated externally nor transverse, the outer margin obliquely sinuate from the 

 inner posterior angle outward. Legs black or piceous, stouter in the 9 - t^'t' 

 tibial spurs short, stouter than usual, tarsi much longer in the % , the last joint 

 very long, in the 9 the tarsi are very short, scarcely exceeding one half the 

 lenath of the tibiae, the last joint relatively long, about equal to joints 1 and 2, 

 claws simple. Length, % .25 inch ; 6 mm. ; 9 ..33 inch ; 8 mm. 



C^alifornia. One pair, Dr. Horn. 



A very peculiar species, easily known by the characters detailed. 

 The % genitalia have the lateral pieces distinctly barbed externally 

 at tip, the middle one slender and a little longer, as usual. The hind 

 coxse are of the same form essentially as seen in Eniconyx, which 

 tends to confirm Dr. Horn's suggestion as to the relationship be 

 tween the Cardiophori and the Aphrici. The species should probably 

 be placed in a new genus. 



Elater filius Randall has been supposed to possibly belong to the 

 present genus, but the description does not apply to any species- 

 known to me. 



Bibliography and Synonymy. 



€ARI>IOI>IIOKL5!i Esch. 



I. 



1. C. amplicoUis Motsch., Bull. Mosc. 1859, iv, p. 385. 



2. C. fenestratus Lee, Proc. Acad. Nat. Sci. 1859, p. 8(j. Feb. 



Lorquinii Cand., Elat. iii. p. 167. 



3. C. cardisce Say (Elater.), Trans. Amer. Phil. Soc. vi, p. 169; Lee, Trans 



Am. Phil. Soc. n. s. x. p. 497; Cand., Elat. iii, p. 170. 



convexus J Erich., Zeitsch. ii. p. 289; Dej., Cat. ed. 3, p. 104. 

 Dejeanii Lee. ( % ), loc. cit. p. 197. 



