COLEOPTEROUS INSECTS. 247 



tice has been noticed in a large species of Oncyde- 

 res found in Brazil ; and it is conjectured that simi- 

 lar observations will soon be made in relation to 

 others of the long-horned beetles. The larva of 

 F. cervicornis is said to live in the wood of the 

 Gossampinus, and is frequently used as an article 

 of food. 



PRIONUS CORTICINUS. 

 PLATE XXIV. FIG. 1. 



The body of this species is rather depressed. The 

 head and antennae are brown, the former having a 

 deep furrow between the eyes, and a dense tuft of 

 hair in front covering the base of the mandibles. 

 The thorax is brown, having a few tubercles in the 

 middle, and several spines on the sides, of which 

 that next the hinder angle is longest. The elytra 

 are elongate, and nearly of equal width throughout 

 their whole length ; they are of a brown colour, and 

 have a small spine at the apex of each. The un- 

 der side of the body, and the legs, are brown. It 

 is a native of Cayenne. 



The tribe of Cerambycida bears a considerable 

 resemblance to the preceding in the general ap- 

 pearance of the body; but they differ in having 

 mandibles of ordinary size, and nearly alike in the 

 two sexes. The eyes are notched on the inner side, 

 and partly surround the base of the antennae ; and 



