COLEOPTERA. lil 
in all the warm and temperate parts of Europe. The larva 
bores deep holes in the Oak, and is perhaps the Cossus of the 
ancients. 
A species called the mifttaris by Bonnelli, very similar to the 
heros, but without the sutural tooth, and with antenne propor- 
tionally shorter and more knotted, particularly in the female, 
is found in the departments of the south of France. 
The characters drawn from the antennz are much less 
strongly marked in another species from the same country—the 
cerdo, L.—which is much smaller, narrower, entirely black, 
and without a tooth at the extremity of the elytra *. 
We refer to the same subgenus various species of Callichroma, 
Dej., with a smooth or but slightly unequal thorax, which is pro- 
portionally longer, and either of an oval shape, and truncated at both 
ends, or almost cylindrical. They are foreign to Europe; nearly all 
of them belong to South America, and are of asmall size. They are 
usually highly decorated, and some of them have one or two globular 
bundles of hairs on the antennz. Some even present this singular 
appearance on their posterior feet. Fabricius and Olivier arranged 
some of these species among the Saperde. The thighs of these 
Insects are generally clavate, and borne on a long pedicle, and their 
antenne composed of long and slender joints f. 
We will also unite to the same subgenus of Cerambyx the Gnome 
of Count Dejean. Their thorax is much longer and cylindrical. 
The inner angle of the superior extremity of the joints of the an- 
tennz is somewhat dilated. The palpi are almost filiform, and the 
inner side of the mandibles exhibits a tooth. Of the two species, he 
mentions one—G. rugicolls, Fab.—as peculiar to Carolina, and the 
other—sanguinea, De}.—to Brazil. 
Those Cerambycini, in which the antenne are hardly longer than 
the body, and rather filiform than setaceous ; where the thorax, always 
unarmed, is sometimes almost globular or orbicular, and sometimes 
narrower, almost cylindrical, and simply dilated and rounded in the 
middle; and where the palpi, always very short, terminate in a joint 
somewhat thicker and wider than the preceding ones, and in the 
form of a reversed triangle, constitute, in the early works of Fabricius 
and in the Entomology of Olivier, the genus 
, CaALLipium, 
Which is now divided into three. 
* For the other species, see Dej., Catalogue, &c., p. 105. In some, foreign to 
Europe, the thorax is elongated and unarmed, as in the Gnome. The Cerambyx 
battus, and some others with spinous or serrated antenne, should form a particular 
division to be placed after the preceding one. 
+ The Callichrome of Count Dejean—Catalogue, with the exception of the 
alpina, and probably the globosa also. Refer to it also the Callichrome described by 
M. Germar in his Insect., Spec., Nov.; the Callichroma scopiferum, the Cerambyx 
of the Entom. Ind., of M. Kliig, and the Saperda scobulicornis of M. Kirby, Lin. 
Trans. The Cerambyx perforatus, and the collaris of Kliig, and the Gnoma clavipes 
of Fabricius, are remarkable for the length of the thorax, and approach the Gnome 
of Dejean. 
