378 Dr. J. L. Leconte on Coleoptera 



fine cinereous pubescence, as in C. gagates^ from which it 

 differs chiefly by its less convex prothorax and elytra, and less 

 rounded sides of prothorax. 



E LATER. 

 Elater anthracinus. 



Niger, nitidus ; pube brevi suberecta nigra parce vestitus, protborace 

 latitudine longiore, antice angustiore, angulis posticis elongatis, 

 fortiter carinatis ; disco convexo, fortiter sat dense punctato, 

 punctis baud ximbilicatis ; elytris striis punctatis, interstitiis vix 

 convexis, punctatis, et transversim subrugosis ; tarsis pieeis ; an- 

 tennarum articuHa 2"^° et 3''" conjunctis sequente paulo longi- 

 oribus, boc 2'*° vix latiore. 



Long. 10 millim. 



One pair. In the male the prothorax is narrowed from the 

 base to the apex, with the sides broadly and obliquely rounded 

 in the female the sides are nearly parallel behind the middle 

 then rounded to the tip, and the elytra are more obtuse behind 

 than in the male. This species is allied to E. carhonicohr. 

 but is much larger, the prothorax is more strongly punctured 

 and the third joint of the antennae is narrower. It also ap- 

 proaches very nearly to an Alaskan specimen of E. nigrinus 

 which, however, has the hind angles of the thorax acutely 

 not feebly carinate, as described by Cand^ze, Elat. ii. 475 

 it differs by its larger size and greater length of the third 

 joint of the antenna?, which is distinctly longer than the 

 second, and by the somewhat more elongate form, longer hind 

 angles of the thorax, and black antennse and feet. 



LiMONIUS. 

 Limonius nitidicolUs. 



Nigro-seneus, nitidus, parce breviter nigro pubescens ; fronto apice 

 late rotundato, margine anguste reflexo, inter antennas biim- 

 presso ; capite tboraceque parce distincte punctatis, boc latitudine 

 paulo longiore, antice vix angustiore, convexo, angulis posticis 

 acutis, rcflcxis, carina brevi margin! approximata, minus con- 

 spicua, basi medio brevissime canaliculato ; elytris striis subtLLi- 

 bus impunctatis, interstitiis plan is, biseriatim punctatis ; auten- 

 narum articulis 2'^° et 3''° aDqualibus, conjunctis 4*° paulo lougi- 

 oribus. 



Long. G millim. 



One pair. Similar in size and form to L. quercinus, but 

 very different by the characters given above, and rather 

 allied to L. aurifer^ Lee, though quite distinct from that 

 species. 



