COLEOPTERA. 13 
pletely envelope the intermediate or tenth, or form a sort of box for 
it, form three subgenera. That of 
Artuyreus, Mac Leay, 
Approximates to the Coprophagi in its intermediate legs, which 
are more remote at base than the others *. ; 
Exvepuastomus, Mac Leay. 
The Elephastomi are remarkable for their epistoma, which is 
dilated on both sides and prolonged anteriorly, in their middle, 
in an almost square lamina, thickest and forked at the end; and 
for the length of their maxillary palpi, which is almost thrice that 
of those attached to the labium. The mentum is profoundly emar- 
ginated, and the mandibles are dentated at the extremity f. 
Boxsoceras, Airby.—Ovonrxus, Zieg—Scarasaus, Lin. Fab. 
Where, as in Ochodeus, to which they closely approximate, 
one of the mandibles is simple at the extremity, and the other den- 
tated. The maxillary palpi are not much longer than the others, 
and there is no emargination in the mentum. 
B. mobilicornis; Scarab. mobilicornis, Fab.; Panz., Faun. 
Insect. Germ., XII, 2. Small; black above, fulvous beneath ; 
the head armed with a very long, linear, slightly recurved and 
mobile horn; the thorax deeply punctured, canaliculated in the 
middle, and furnished anteriorly with four tubercles; elytra 
marked with dotted strice ; the body sometimes all fulvous—S. 
testaceus, Fab. Found in France. 
One of the sons of that celebrated traveller and ornithologist, Le 
Vaillant, observing that Frogs and Toads are excessively fond of 
this Insect, procured numerous specimens by eviscerating those Rep- 
tiles t. 
Our first division of the Scarabeides Arenicoli is terminated by 
those in which the antennze, as in the most of the subsequent Sca- 
rabeeides, are composed of ten joints. 
The last joint of their palpi is elongated. The maxillary lobes 
are membranous. The labrum is less salient than in the preceding, 
or projects but little. The mandibles are not at all or but very 
slightly dentated. The epistoma is short, either arcuated and round- 
ed, or projecting into an angle. They are very small Insects, whose 
thorax is destitute of horns. 
Hysosorus, Mac Leay.—Caranmus, Grorrures, Fab. 
The first joint of the antennz in the form of a reversed and elon 
* Hor. Entomol., I, 1, p. 123. 
+ Hor. Entom., I, p. 121; Scarabeus proboscideus, Schreib. Lin. Trans., VI, 
p. 189. 
+ Balboceras australasie, Kirb., Lin. Trans., XII, xxiii, 5 ;—the Scarab. quadri- 
dens, cyclops, and lazarus, Fab. 
