426 INSECTA. 



But few species are known, and all of them are from Bra- 

 zil(l). The 



Areodes, Leach. Mac L. 



Have ten joints in the antennae, a corneous sternum, and all the 

 hooks of the tarsi equal in the individuals presumed to be females — 

 Lepel. and Serv. — and unequal in the malesj the thickest of the two 

 anterior ones of the latter is bifid, and all the others are entire. 



The colours of these Insects are very brilliant(2). 



In all the preceding Phyllophagi, with some few exceptions, we 

 have found the antennae to consist of ten joints. In all the following 

 ones of the same division, or that of the Melolonthidae, we shall find 

 but nine. 



Here all the hooks of the tarsi are equal? one of the two anterior 

 ones, at most, is sometimes larger. 



Dasyus, Lepel. and Serv. 



Hooks of the anterior tarsi, at least in the males, bifid; and the 

 others entire(3). 



Serica, Mac L. — Omalopia, Dej. 



All the hooks of the tarsi bifid; body ovoid, arched, silky, and fre- 

 quently with changeable reflections; thorax much wider than long(4). 



DiPHUCEPHALA, Dej. 



Plerc also all the hooks of the tarsi are bifid; but the body is nar- 

 row and elongated, and the thorax almost square. The first joints 

 of the four (male) or two (female) anterior tarsi are short, and 

 provided with brushes underneath; the same joints are dilated, or 

 wider in the four first tarsi of the males. The epistoma is strongly 

 and angularly emarginated. 



These Insects are peculiar to New Holland(5). 



(1) I'he Ceraspis pruinosa, Lepel. and Serv., Encyc. Method., is the M. bivul- 

 nerata of Germar. The M. variegata of the latter also appears to me to be a 

 true Ceraspis. 



(2) Hor, Entom., I, p. 158. 



(3) Encyc. Method., article Scarabe'ides. 



(4) Mac Leay, Hor. Entom., I, 146. The M. brunnea, variabilis, ruricola, &c., 

 of Fabrlcius. M. Mac Leay says that the antenns are composed often joints, but 

 I can find but nine. The length and form of the tarsial segments vary. 



(5) Mdohntha colaspidoides, Schoenh., Synon. Insect., I, 3, App., p. 101. See 

 the Catalogue, he, of Dej., p. 58. 



