of mi: UNI n.n - i \ it.-. I.: 1 ' 



Abundant at Lako Superior: smaller and more Blender ilian the nexl spi ci< s, hnrdl) di- 

 lated on tlir sides: it is easily distinguished by its convex, less rounded and I. -- dens< l\ 

 punctured thorax. 



11. C aratus, crasaiusculus, seneo-niger, tenuiter cinereo-pubescens, thorace latitndine >ulilon- 

 giore. paulo convexo, lateribna antice rotundatis, angnlia posticia acutia, productia, rufeacentibn 

 profunde canaliculato, confertim, lateribna densina pnnctato, elytria Btriia tenoibus, punctatis, u 

 stitiis prsecipue plania, disperse punctulatis, pedibua rufis, antennia pici Lot - I '.--■.".;. 



Abundant at Lake Superior: closelj resembles in form and charai tera < '. splendons, but 



is distinctly pubescent, ;md a little nnuv -lender in its general form: the Fourth joiul "1 the 

 antenna' is nol longer than the lilth. 



A — _' — o. 



]■_'. C. spl en dens, crassiusculua cupreo-senens, vel brui n ipra vix tenuis ime pal 



cons, thorucc paulo convexo, latitndine longiore, lateribna antice rotundatis, posticia prodi 



rufescentibus, confertim lateribus confertissimc punctato, elytria Btriia punctulatis, antennia u 

 pedibua prosterniqne lobo rufis. Long. - 4 — '52. 



Via mthus splendena Ziegler, Proc. Acad. Nat. So. -. I I. 



Pennsylvania, Massachusetts, Lake Superior: it is Elater metallicua of Harris 1 cata- 

 logue. The epi pleurae are sometimes tinged with rufous. The specimens from Lake v n 

 perior usual!] have the thorax more densely punctured, but otherwise do nol differ from 

 those found nearer the Atlantic. 



13. C. SB r i p e n n i s , crassiuscnlus, niger, Bupra glaberrimna, thorace minua convexo, latitndine 

 sublongiore, 1 rotundatis, confertim pnnctato, angnlia pa iidi- 



rencis nitidis, .-triis punctata, interstitiia minus dense punctulatis. Long. "5 — 

 I tripennis Kirby, Fauna Bor. Am. L50, (1837.) 



/.' • - pinquam Randall, Bost. Jour. Nat. Hist. 2, 5, I 

 /' ■ mthus :• rij 1 1 »chr. 1, 32. 



Very abundant at Lake Superior: found by Randall in Maine. The elytra varj in co- 

 lour, being sometimes almost coppery. 



II. C. carbo, nigerriuiua, supra glaber, thorace latitudin 

 ribna coni I ibua rotundato, at j tria 



fere planis, punctnlat 



One specimen from Oregon. N •' 30 broad in its form as C. raripennis, but having, like 

 that species, the fourth joint of the antennas conspicuousl) longer than the lilth : it n Bern- 

 bli - very much the next, but the thorax 1- entin ly black, and the dorsal hue 1- verj faint, 

 and \ isiblc only near the Li e. 



I".. C. I a t e r a 1 i s , nigerrimua, aupra glaber, thorace latitudine 1 

 latei me punctato, antice angustato el lateribua 



yl 

 t. 

 One specimen, Oregon, Col. M'Call. The inflexed portion of the thorax, as w< 

 broad lateral margin, 1- Banguineous: the onti una? are 1 in the two pr< 1 ling 



