AMERICAN COLEOPTERA. $99 



varied with pieeous towards the apex; underside pitchy red, four anterior legs 

 and spots at the sides of the 3— 6th segment yellow. L. 1-20 inch. 



9 , thorax and elytra finely strigose, suture more or less broadly smooth. 



% , stridulating plate with four distinct ridges. 



Pennsylvania, Louisiana, Kansas, Georgia. 



C ellipticals, Lee. Ann. Lye. v., p, 202.— Slightly obovate, olive-green 

 above, rufous below; sides of thorax and elytra broadly, base of thorax nar- 

 rowly, yellow; dorsal series of punctures well marked. L. 1-18 inch. 



%, stridulating plate with 3-4 short rugae; ?, longitudinally strigose, su- 

 ture smooth. 



California. (Leconte.) 



C. explanatus, Lee. Ann. Lye. v., p. 202.— Extremely near C. elliplicus ; 

 but the females are generally smooth, and the elytral margin is narrowed at 

 the apex, the stridulating plate has five well marked rugee. L. 1-18 inch. 

 California. 



C. Olivieri, Crotch ; costalis % 01. Ent. iii., 40, p. 9. (nee. Fabr. 1775).— 

 Very near C. fimbriolatus, but smaller, with the thoracic and elytral margin 

 narrower, the elytral vitta leaves the margin gradually and is atteunuated at 

 about three-fourths. L. 110 inch. 



% , stridulating plate with three rugae. 2 > elytra smooth. 



Florida. (Leconte.) 



L.ACCOPHIE.US, Leach. Zool. Misc.. p. 69. (Type minutus.) 

 Scutellum not visible, thorax not margined, presternum carinate, 

 metasternum emarginate in front, terminating in a rounded point, and 

 slightly sulcate, laciniae linear, strongly curved, episterna reaching the 

 coxae ; coxal process hardly bilobed, the raised margins converge in 

 front and join the metasternum just before its apex ; posterior femora 

 not punctate at apex, tibiae short, claws unequal. 



£ . — Four anterior tarsi dilated, clothed with spongy hairs beneath, 

 anal segment carinate, coxal plates with a ridge of fine lines startin» 

 from the apex of the metasternum, and forming a stridulating organ 

 by means of the posterior femora. 



l<. maculosus, Germ. Ins. Spec. Nov., p. 30.— Ovate, elytra obliquely 

 truncate at the apex; head, thorax, legs and under surface rufo-testaeeous : 

 elytra very finely reticulate, the first dorsal series visible, the margin greenish- 

 white, with four irregular transverse prolongations (one between the callus, 

 one in the middle, one at two thirds and one sub-apical), margined with black, 

 a narrow sutural line extending to the middle reddish, the base with three ir- 

 regular greenish-white marks bordered with black, the disc greenish-yellow 

 irrorated with black. L. -24 inch. 



% , siridulatiiig plate with rather coarse, closely approximating striae. 



Georgia, Pennsylvania, Lake Superior. 



