104 



22. 



'Seutel cordilorm, the region 

 about it much depressed . . 



Seutel ovate, convex; body 

 short, thick, oval .... 

 f Antenna; distinctly serrated, bo- 

 dy moderately elongated . . 



23.^ 



24. 



25.^ 



26.^ 



Antennae hardly serrated, near- 

 ly filiform, 24. 

 ' PrtEsternum produced and cov- 

 ering the mouth entirely; 

 body short, thick; tibia; spiny; 

 mesosternum grooved . . . 



Pra;sternum not closing the 

 mouth entirely, 25. 



Fourth to tenth joint of antennae 

 increasing in length; body 

 elongated, slender, almost 

 linear 



Fourth to tenth joint of the an- 

 tennas subequal, 26. 



Fourth joint of tarsi not much 

 shorter than the third; body 

 short, thick, robust, and very 

 convex 



Fourth joint of the tarsi very 



minute, its base received 



within an emargination of the 



third; body slender, almost 



[_ linear 



Cardiophorus Esch. 



E. convexits ? ? ? Say. (Hentz, No. 

 1)5 7.) 

 OppiiORUS Esch. 



E. dorsalis Say. (Hentz, No. 138.) 

 LiMONIUS Esch. 



E. q/lindriformis Say. (Hentz, No. 



145.) 

 E. plebejus Say. (Hentz, No. 



1154.) 

 E. limbalis Hbst. (Hentz, No. 152.) 

 E. quercinus Say. (Hentz, No. 

 161.) 

 Cryptoiiypnus Esch. 

 E. abhreviatus Say. (Hentz, No. 

 956.) 



DoLOPius Megerle. 



E.silaceus Say. (Hentz, No. 164.) 

 inquinalus Say. 



Hentz, No. 142. [Elater lancea- 

 rius Hentz' Mss. Catal.] 



Agriotes Esch. 

 E. obesus Say. (Hentz, Nos. 144 

 and 148.) 



Adrastus Megerle. 

 E. bigeminatiis ? Say. 

 Hentz, No. 156. \_Elater exclama- 



tor Hentz' mss. Catal.] 

 E. pectoralis ? Say. 

 Hentz, No. 153. [Elaier scutatus 



Hentz' MSS. Catal.] 



