OF THE UNITES STATES. |7" 



17. C. glandicolor, castaneus, fusco-pubesccns, fronte minus convexa, thorace latitudine vix 

 longiore, a basi Bensim angnstato, lateribua rectia ad apicem Bobito rotundatim angni 

 subcanaliculato, parce grosae punctata, elytria subparallelis, Btriia panctatis, interstitiia plania 

 parcc punctatis, antennia (feminae) pabeacentibos, articulia 2 et 3 Beqnalibas. I. ag. "70. 



Melon >tus glandicolor Mods. Proc. Acad. Nat. Sc. 2, L52. 



One specimen from IVnn-\ Ivania in Dr. Melsheiuoer's collection. Tbia .-p« ci< 3 is v< rj 

 distinct by the form of the thorax, the sides of which are perfect]] Btraighl and ' >I>1 m p i« - 

 Irom the tip of the posterior angles to within one-sixth of the apex, where the) are sud- 

 denly rounded; the carina of the posterior angle is one-third the length of the thorax. 



L8. C. fiaailis, fusco-piccus, brunneo-pubescens, fronte margine panlo reflezo, parnm prodn 

 thorace elytria latiore, latitudine panlo longiore, antrorsum valde angnstato, lateribns rotundatis, an- 

 gnlia poatdcia bicarinatia non divaricatia, sat gros-.- punctato, non canalicnlato, elytria b baai attenua- 



jeriatim punctatis, interstitiia parcc punctatis, et rngosia, antennia artienlo : '" Beqnente \i\ 

 viorc. I I — -tli'. 



tonychus laticollia Erichaon, Germ. Zeitscbr. 3, L02. 

 . Elater brevicoUu Herbst, Kafer, 1", 16, tab. 162, fig. 3. 



• myehus ochracei} M Isbi inn r, Proc. Acad. Nat. Sc. 2, 150. 



Cratonychus sphen idalia Melabeimer, Proc. Acad. Nat. Sc. 2, 150 (teste Melsheimi 

 Elatt r ■ His) Say, Trans. Am. Phil. Soc. 6, 183. 



Elater it 'an tus) ctnereuaf Harris, [ns. Injurious to Vegetation 2nd ed. 18. 



Abundanl in the Middle and Southern State-. Easily distinguished by the thorax beine 

 wider than the elytra, and not channelled. C. ochraceipennis is an immature specimen, in 

 a had condition. The posterior angles of the thorax in this species are distinctly bicari- 

 natc, and the basal Gssun s very distinct 



19. C. commnnis, fascna, brnnneo-pube nte non concava, paulo prodncta, thorace elytria 

 snblatiore, latitudine non longiore, nntrorsiim val 1 angu - pc 



punctato, postice canalicnlato, eljtria si aterstitiia tninna dense mgosc 



pnnctnlatis, antennia articul [nente panlo breviore. I. g. '45 



Dejean, rm. Zeitscbr. 8, 102. 



Elater communis Gyllenhal, SchSnh. Syn. 1 I, A] I -. 1817; Bay, Tr. Am. Phil. Soc. 6, 184. 



/' unit Kirby, Fan I' ir. Am. I l B. 



F.l'ii' r i Mi lanot mil II irris, I 18. 



Elater , Ent. 77. 1801.) 



Abundant, as far as Nebraska. The lasl synonym is usually given to the preceding 

 species, but, as Weber says,"Thorax punctatua basi canaliculars," it cannot be there 

 placed. His name has properly priority ; but as many entomologists will refu lopl 



the view here given, (which has indeed already been advanced l>\ Kirby,) the changi 

 name would only had to c< infusion. 



One specimen from New Orleans, gh n mc l»\ Dr. Schaum, has the fronl modi 

 deeplj concave: the thorax appears a littli i avex, and more deeply channelled ; but 



(here does nol appear suffii ii nl reason to -• pa rate it. 



20. < '. e x d 1' e r a n s, fuaco-i 



