110 INSECTA. 



AcANTHOPTERA, Lat. — Callichroma, Purpuricenus, 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*. 



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 f- 



Another species with a depressed body, and in which the 

 third joint of the antennse, and the three following ones are ter- 

 minated by a little bundle of hairs, approaches the Callichromae, 

 with which we formerly arranged it, in its general form and the 

 musky odour it diflfuses. It is the A. alpina; Cerambtjx alpinus 

 L. ;01iv., lb,, 67, IX, 58; cinereous-blue; six blackish spots 

 disposed longitvidinally on each elytron, the two middle ones 

 united and forming a band ; a spot of the same colour on the 

 anterior part of the thorax ; superior part of the joints of the 

 antennae also black. Common in the Alps ; it is sometimes 

 taken in the timber j^ards at Paris. 



The following Cerambycini have but eleven joints in the antennae. 



In some, at least in the males, the antennae are long and setaceous, 

 the last joint of the palpi is obconical, the thorax is either almost 

 square, and slightly dilated in the middle, or oblong and nearly cy- 

 lindrical — it is frequently rugose and tuberculated. on the sides. 

 They compose the subgenus 



CERAMBYx,^r()pe?'. — Cerambyx, Lin., Fab. 

 Certain species, with an unequal or rough thorax, usually spinous 

 or tuberculated and dilated on the middle of its sides, Avith the third, 

 fourth, and fifth joints of the antenna?, evidently thicker than the 

 following ones, thickened and rounded at the end ; and the latter 

 abruptly longer and thinner, almost cylindrical, forming, with the 

 preceding ones, an abrupt transition, have been generically distin- 

 guished by the name of Hamaticenis. The antennae are much longer 

 in the males than in the females. 



C. her OS, Fab. ; Oliv., lb., I, 1. Length one inch and a half; 

 black; extremity of the elytra brown, and prolonged into a small 

 tooth at the suture ; thorax extremely rugose and with a pointed 

 or spiniform tubercle on each side ; antennae simple, Common 



* Insect., Spec, Nov., p. 511, et seq. 



t The Cerambyx Kahleri, Desfontainii, Fab.; — C hudensis, Goeze. The C. tin- 

 culatus of M. Geimar, which he referg to the Purpuriceni, is a Callichroma. M. 

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

 the name of Cemmbi/x zonatm, in a work entitled PericuU EntomogrupMci, Species 

 Insectorum nondum descrijJta^ proposituri fasciculus, \\-ith four plates. He then 

 figures various Cucurlionites forming new genera, according to the system of M. 

 Schoenherr. The descriptions are modelled on those of M. Gyllenhall, and are very 

 complete. 



