COLEOPTERA. 109 
But a single species is yet known—P, Dejeanii—and that is peculiar 
to Brazil. 
In the others, the antennze, at most, are spinous, or slightly ser- 
rated. 
Several, which are very remarkable for their colours, and the 
agreeable odour they diffuse, present an anomaly with respect to the 
relative proportions of their palpi: the maxillary palpi are smaller 
than the labials, and even shorter than the terminal lobe of the max- 
illae which fr equently projects. Their body is depressed, and the an- 
terior part of the head narrowed and pointed ; the posterior tibice are 
often strongly compressed. 
They compose the subgenus 
Caruicuroma, Lat,—Crrampyx, Fab., Dej. 
Among the species with simple, setaceous antenne, and a dilated 
thorax, spinous and tuberculated on the middle of its side, and in 
which the posterior thighs are elongated, and their tibiee ‘strongly 
compressed : there is one in France, found on the Willow, that diffuses 
a strong odour of roses. 
C. moschatus ; Cerambyx moschaius, L.; Oliv., Col. IV, 67, 
xvii, 7. It isabout an inch long, entirely green, or of a deep 
blue, and somewhat gilded in certain individuals. 
C. ambrosiacus, Stev., Charpent. Very similar to the pre- 
ceding, but the thorax is entirely, or only on the sides, of a 
blood-red. It is found in the south of Europe, in the Cri- 
mea, &c. 
South America and the tropical countries of the eastern con- 
tinent produce several others *. 
Other Longicornes of the same division, but in which the maxil- 
lary palpi, as usual, are at least as long as the labials, and extend 
beyond the extremity of the -maxille, are distinguished from the 
following ones by their antennze, which distinctly present twelve 
joints instead of eleven, at least in the males; they are always long 
and setaceous, and frequently spinous or bearded. The thorax is 
dentated or spinous on the sides. We will unite them in the sub- 
genus 
* The Cerambyx virens, albitarsus, nitens, micans, ater, festivus, vittatus, sericeus, 
elegans, suturalis, latipes, regius, albicornis, &c., Fab. 
Certain African species, such as the Cerambyx longicornis, flavicornis, and claviger, 
of Scheenherr, which, though very analogous at a first glance to the preceding, ap- 
pear to form a separate subgenus by their compressed antennz dilated near the end; 
but the mouth of the Cerambyx seax-punctatus of this same naturalist—Saperda 
6-punctata, Fab.—which, from its analogy to the Cerambyzx clavicornis—Sap. elavicor- 
nis, Fab.—of the same, appears to be congeneric, in the proportions of its palpi, 
resembles a Cerambyx, properly so called. 
The Saperda hirsuticornis, Fab.—Kirby, Lin. Trans., XII, p.442—is a Calli- 
chroma by its mouth, it is true, but differs from it inthe antenne and the form of 
the body. 
