COLEOPTERA. aO 



and all the joints of the tarsi arc alike in both sexes, elongated and 

 simply pilose. 



They are peculiar to the western continent *. 



There, the hooks of the intermediate tarsi are alone unequal. 



Plectris, LepeJ. and Serv. 



The largest of these hooks and the two of the other tarsi bifid ; 

 first joint of the posterior tarsi very long f. 



In the others, all the hooks of the tarsi are unequal ; those of the 

 two posterior ones, at least, are always entire ; one at least of the 

 two or four anterior tarsi of the males, and sometimes of the females, 

 is bifid. 



PopiLiA, Leach. 



The sternum advancing between the legs in a compressed and 

 truncated, or very obtuse lamina J. 



EucHLORA, Mac L. — Anomala, 3Ieg. Dej. 



No sternal projection ; one of tlie hooks of the four anterior tarsi 

 bifid in tlie males ; body arched ; epistoma short and transversal ||. 



Anisoplia, Meg. Dej. 

 No sternal elongation ; but one of the hooks of the four anterior 

 tarsi is bifid in the tAVO sexes ; the back is depressed, and the episto- 

 ma usually narrowed anteriorly, and raised at its extremity § 



Lepisia, Lepel. and Serv. 



No sternal spine, but distinguished from the preceding by the four 

 anterior tarsi, the hooks of Avhich are bifid **. 



The Hoplidae or the Phyllophagi, of our third and last division 

 have small depressed mandibles, as if divided longitudinally into two 

 parts, the inner of which is membranous, and the other corneous ; 

 there are no sensible dentations at their superior extremity. The la- 

 brum is concealed, or but little apparent f f , The maxillae have fre- 

 quently but small dentations. The body is short, depressed, and 

 Avide ; the elytra are narrowed posteriorly on the outer side. The 

 two last tarsi usually have but one hook ; in those where they all 

 have two — Dicrania — the first joint of the anterior tarsi is prolonged 

 inferiurly, and presents on the inner side a stout, hooked tooth. 



* 71/. suhspinosa, Fab., and several undesciibed species. 



-f- Encyc. Method., article Scarabetdes. 



X Trichius 2-punctatus, Fab. 



II The M. viridis, bicolor, errans, marginafa, cyaaoccphala, viiis, Jtdii, Frischii, holo- 

 sericea, aiirata, ike, of Fabricius. See Hor. Entotn., I, p. 147. The genus Mimela, 

 Kirby, appears to me to approximate closely to Euchlora ; not having seen a speci- 

 men of the former, I can say no more. 



§ The il/. ho)iicola,floricoJa, auricola, fruticola, agncola, lineata, &.C., Fab. 



** Encyc. Method., article Scarab eides. 



ft In the latter of the preceding subgenera this part also, viewed from before, 

 merely presents a linear, transverse edge, either entire or slightly emarginated in the 

 middle, 



VOL. IV. D 



