480 



REVISION OP THE ELATERID.E 



nel, which is, however, very short. The thorax is more convex in the female, and more 

 rounded on the sides than in the male. 



30. C. insipiens, elongatus, testaceus, cinereo-pubescens, fronte non concava, paulo producta, 

 tliorace latitudine longiore, lateribus antice late rotundatis, minus dense punctato, postice canaliculato, 

 elytris subparallelis, striis punctatis impressis, interstitiis punctulatis, antennis articulo 3'° sequente 

 paulo breviore. Long. -23. 



Elater insipiens Say, Trans. Am. Phil. Soc. 6, 184. 



Southern States. Distinguished from the following by the dorsal channel of the thorax, 

 and its rounded sides. 



31. C. t e n e 1 1 u s , elongatus, testaceus, cinereo-pubescens, fronte non concava, paulo producta, 

 tliorace latitudine longiore, lateribus rectis obliquis, minus convexo, minus dense punctato, non cana- 

 liculato, elytris a basi subangustatis, striis punctatis impressis, interstitiis parce punctulatis, sutura 

 late fuscescente. Long. •IS — -23. 



Ericlison, Germ. Zeitschr. 3, 114. 



Georgia. The darker suture gives this insect somewhat the appearance of Adrastus 

 recticollis, but a very slight glance enables them to be separated. 



32. C. oregonensis, nigro-piceus, longior, cinereo-pubescens, fronte non concava, vix pro- 

 ducta, thorace latitudine longiore, convexiusculo, lateribus obliquis ad apicem rotundatis, angulis pos- 

 ticis divaricatis, sat grosse, lateribus densius punctato, postice canaliculato, elytris fere parallelis, striis 

 punctatis vix impressis, interstitiis parce punctulatis, pedibus antennisque piceis, his articulo 3 10 se- 

 quenti sesqui breviore. Long. -48. 



One specimen, Oregon, Col. M'Call. Sufficiently distinct from any of those above de- 

 scribed, and resembling perhaps most nearly C. infaustus, but having the thorax more 

 densely punctured and more oblique on the sides, and the third joint of the antenna? hardly 

 more than half the size of the fourth, and only one half larger than the second. 



33. C. longulus, testaceo-fuscus, elongatus, cinereo-pubescens, fronte non concava, thorace la- 

 titudine longiore, lateribus obliquis antice vix rotundatis, parce subtiliter punctato, postice breviter 

 canaliculato, elytris fere parallelis striis punctatis subimpressis, interstitiis parce subtiliter punctatis, 

 antennis articulo 3 io 2 mI ° sesqui longiore. Long. *37. 



Georgia. My specimens are in bad condition. The third joint of the antennas is inter- 

 mediate in length between the second and fourth: the feet are paler than the body. 



34. C. Sagittarius, fuscus, vel testaceus, elongatus, cinereo-pubescens, fronte subconcava, apice 

 swbangulata, thorace minus convexo, latitudine non longiore, antrorsum angustato, lateribus antice 

 late rotundatis, postice breviter canaliculato, parcius sat grosse punctato, elytris a basi angustatis, 

 seriatim punctatis, interstitiis parce punctulatis, antennis articulo 3'° secundo sesqui longiore, pedibus 

 pallidioribus. Long. *54. 



Middle States, rare. This and the next species seem to differ from all the preceding 

 ones in having the clvpeus almost angulated at the apex, although not as convex as in the 

 species of Elater: from C. corticinus, macer, and exuberans, which alone resemble it in 

 general form, it is easily distinguished by the characters above given. 



35. C. paradoxus, elongatus, nigro-piceus, cinereo-pubescens, fronte subconcava, apice suban- 



