306 G. H. HORN, M. D. 



One specimen before me collected in the Amador Valley, Califor- 

 nia. 



ELATER, Linn. 

 E. atripennia, n. sp. — Body entirely reddish-yellow, head piceous, elytra 

 black, shining ; form elongate parallel feebly narrowed at the extremities. 

 Head coarsely punctured and sparsely clothed with short yellow hairs. An- 

 tennae ferruginous, tliird joint cylindrical longer than the second, shorter than 

 the fourth, joints four to ten feebly subserrate. Thorax broader ihm long 

 feebly narrowed in front, sides slightly rounded and feebly sinuate near the 

 hind angles, which are short, acute and obtusely carinate; disc moderately 

 convex, sparsely punctured and clothed as the head. Elytra as wide as thorax 

 feebly narrowed to apex; color black, shining, sparsely clothed with short 

 black hairs ; surface moderately convex feebly striate, stride deeper at sides, 

 punctured; intervals flat, sparselj' rugosely punctulate. Body beneath and 

 legs entirely reddish yellow, sparsely punctulate and pubescent. Length .34 

 inch ; 8.5 mm. 



Allied to collar iii and palam, but differs from either by its more 

 elongate form and from all other Elaters of similar system of colora- 

 tion above by the entirely reddish-yellow abdomen and legs. The 

 thorax is uniform in color, the hind angles being of the same color as 

 the rest of the surface. 



One specimen, 9 , in cabinet of Mr. Ulke, from California. 



E. Behrensi, n. sp. pi. IV, fig. 5. — Body black, feebly shining, elytra red with 

 an irregular cordiform spot at apex. Head black, coarsely but sparsely punc- 

 tured. Thorax scarcely longer than broad at base, gradually narrowed iu front 

 sides feebly rounded in front gradually divergent behind, hind angles acute, 

 carinate; disc moderately convex coarsely but not densely punctured and with 

 the head sparsely clothed with black hairs. Elytra as broad as thorax, sides 

 feebly rounded and gradually narrowed to apex, disc moderately convex, 

 striate, striae coarsely punctured, intervals flat sparsely punctulate and sparsely 

 clothed with reddish-yellow hairs, those of the black space being dark brown. 

 Body beneath black, sparsely punctulate and sparsely clothed with brownish 

 hairs. Legs black, tarsi brown. Length .42 inch ; 10.5 ram. 



The apical black space occupies about one-third the length of the 

 elytra and is of irregular cordate form, and extends to the margin. 

 Allied to cordifer and dimidiatus, diflfers from the former by the ex- 

 tent of the elytral spot and the more deeply striate elytra, and from 

 the latter by its more densely punctured thorax and by the hairs 

 clothing it being black while in dimidiatus, they are reddish-yellow. 



One specimen from Sonoma, California, presented by Mr. James 

 Behrens. 



The following species so nearly resembles the preceding in form and 

 sculpture that the points of difference only are given. 



E. cordatus, n. sp. pi. IV, fig. 7.— Thorax more densely punctured and with 

 the head clothed with ferruginous yellow hairs; sides more strongly rounded. 



