ORDER COLEOPTERA. 405 



which is much more elongated in the males than in the 

 females. The last articulation is in the form of an elongated 

 or lanceolate triangle. 



Dermestes Pellio, Lin. Oliv. ibid. II. ii. is but two lines 

 and a half in length. Its body is black, with three white 

 points on the corslet, and on each elytrum. They are formed 

 by a sort of down. The larva is greatly elongated, of a 

 reddish, shining brown, furnished with red hairs, of which 

 those of the posterior extremity form a tail. It walks in a 

 sliding manner, and as it were by jolts, which the perfect 

 insect does as well as the Dermestes.* 



In the others, such as 



LiMNiCHUs, Zieg. Dej. 



The antennae thicken insensibly, and terminate by a larger 

 and ovoid articulation. They are grained, and lodge under 

 the anterior angles of the corslet. The jaws terminate by 

 two lobes, the exterior one of which is narrow, and in the 

 form of a palpus. The labial palpi are very small, and the 

 last articulation of the maxillary is larger than the preceding, 

 and ovoid. {Byrrhus sericeus, Duft. ; B. PygmcBus, Sturm.) 



In all the following sub-genera, the antennas, or at least 

 their knob, lodges in particular and lateral cavities of the 

 under part of the corslet. The presternum is always dilated 

 or advanced in front. 



In these the knob of the antennae is perfoliate, and not 

 solid. 



Attagenus, Latr. Megatoma, Ejusd. Dermestes, Fab., 

 In which the knob of the antennae is very large, almost in a 



" Add, Dermestes megatoma, of Fab., of which his Macellarius appears 

 lo be the female ; D. emarginatus, of Gyllenhall ; D. undatus, of Fab. 

 The presternum in this last species advances on the mouth. 



