COLEOPTERA. 529 



C. moschatus; Cerambyx moschatus, L., Oliv., Col. IV, 67, 

 xvii, 7. It is about 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 its thorax is entirely, or only on the sides, of a 

 blood-red. It is found in the south of Europe, in the Cri- 

 mea, Sec. 



South America and the tropical countries of the eastern con- 

 tinent produce several others(l). 

 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 maxillae, are distinguished from the 

 following ones by their antennae, 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 



Acanthoptera, Lat. Callichroma, Purpuricenns, Stenocorus, Dej. 



Dalm. 



Certain species of America, in which the thorax is almost square 

 or nearly cylindrical, and the elytra are most frequently terminated 

 by one or two spines, form the Stenocorus of Dalman(2). 



Others, but generally peculiar to the western countries of the east- 

 ern continent, in which the body is tolerably elevated, the thorax 

 almost globular, and the antennae are simple and without fasciculi of 

 hairs, constitute the Purpuricenus of Ziegler and Dejean(3). 



(1) The Cerambyx virens, albitarsus, nitens, micans, ater, festivus, vittatus, seri- 

 ceus, elegans, suturalis, latipes, regius, albicornis, &c, Fab. 



Certain African species, such as the Cerambyx longicornis, flavicornis, and cla- 

 viger, of Schocnherr, which, though very analogous at a first glance to the pre- 

 ceding, appear to form a separate subgenus by their compressed antennae dilated 

 near the end; but the mouth of the Cerambyx sex-punctatus of this same naturalist 

 Saperda 6-punctata, Fab. which, from its analogy to the Cerambyx clavicornis 

 Sap. clavicornis, Fab. of the same, appears to be congeneric, in the propor- 

 tions 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 in the antennae and the form of 

 the body. 



(2) Insect. Spec. Nov., p. 511, et seq. 



(3) The Cerambyx Kxhleri, Desfontainii, Fab.; C. budensis, Goeze. The C. 

 vinculatus of M. Germar, which he refers to the Purpuriceni, is a Callichroma. M. 

 Sahlberg, professor of Nat. History, has described and figured this last Insect 

 under the name of Cerambyx zonatus, in a work entitled Periculi Entomographici, 



Vol. III. 3R 



