of anew Genus of Lamellicorn Beetles. 297 
et simplicia, nec elevata nec porrecta. Pedes brevissimi, in 
maribus preesertim incrassati ; tibiee anticae 3-dentate, den- 
tibus duobus apicalibus approximatis; tibia intermedia extus 
biangulatee, singulo angulo in medio dentibus duobus in- 
structo; tibize postice extus l-angulate, dentibus duobus 
eodem modo positis. Tarsi brevissimi, 5 -articulati, maris 
robustiores presertim in pedibus anticis, articulo 5to majori 
curvato, apice subtus onychia distincta setigera armato; un- 
guibus omnibus in utroque sexu sequalibus: uno bifido, 
altero simplict ; ; unguibus pedum anticorum maris magnis dif- 
formibus, majori valde curvato et supra dente armato, minori 
simplici. 
Fig. 1h, tibia et tarsus anticus; 1i, tibia et tarsus intermedius maris ; 
2e, apex tibiz, cum tarso antico; 2/f, tibia intermedia ; 22, 
tibia postica foemine. 
In the first part of the fourth volume of the Transactions of the 
Entomological Society I described a genus of Lamellicorn beetles 
belonging to the family Rutelide, composed of species inhabiting 
Asia and its dependent islands, being the only insects of that family 
which had hitherto been discovered in that quarter of the world, 
the great majority of the species being almost exclusively natives 
of the New World. The genus Parastasia, in several of its cha- 
racters, constitutes a very marked addition to the family, which, 
with Chalcentis, (formed of two Brazilian species,) and probably 
with the addition of the undescribed Australian group, named Ce- 
lidia in Dejean’s Catalogue, has been formed by Dr. Burmeister 
into a separate subfamily, distinguished by the subsinuated labrum, 
the clypeus generally dentate at its anterior extremity, and the 
short broad scutellum, 
The insects which constitute the genus of which the characters 
are laid down above, represent another and not less important 
link in the classification of this beautiful family. Like Parastasia, 
they are inhabitants of the East; and thus, in an Entomo-geogra- 
phical point, are particularly interesting ; but it is in their charac- 
ters that we look for their chief peculiarities. And here we find 
that whilst they possess, with only one or two immaterial excep- 
tions, the entire characters of the family Rutelide, as laid down 
by Mr. MacLeay in the “ Hore Entomologice,” i. p. 69, they 
possess generic distinctions which will at once remove them from 
every known Rutelideous group. 
It may, I think, be laid down as arule, that where the males 
of any insect exhibit strikingly marked external sexual charac- 
VOL. IV. ~ 
