322 CLASS INSECTA. 



the corslet black, with the exception of its posterior edge, 

 and the cases of a deep blood red. Found on willows. The 

 largest species in Europe.* 



Sometimes the head is disengaged posteriorly, or is not 

 sunk as far as the eyes, which are prominent and globular. 

 The antennae are inserted under the edges of a frontal pro- 

 jection, depressed, and arched before. The body is long and 

 narrow, or almost linear. Such are 



Campylus, Fischer. Exophthahnus, Latreille. Hammio- 

 71US, Miihfeld.j- 



Some elaterides, with filiform palpi and antennae pectinated 

 from the fourth articulation, will compose a final sub-genus ; 

 that of 



Phyllocerus.:]: 



Our second section, that of the Malacoderme, shall be 

 divided into five tribes. 



* See for the other species, Oliv. ibid. Panz. Faun. Insect. Germ., and 

 his Ind. Entom., as well as Herbst. Col. and M. Palisot de Beauvois, 

 Insect. d'Afri. et d'Amer. The genus Dina, of M. Ziegler, and of which 

 the species named elateroides, has been figured by M. Charpentier, in his 

 work entitled, Horae Entoraolog. VI. 8, presents to me no character to 

 distinguish it precisely from the foregoing. 



-j- See Fischer Entom. de la Russia, torn. II. page \55. This sub-genus 

 comprehends the Elater linearis of Linnaeus, of which his masomelas is 

 only a variety ; E. borealis, of Gyllenhal, and his E. cinctus. 



X M. le Comte Dejean having gained but a single individual, I could 

 not sacrifice it for the purpose of studying the characters in detail. Two 

 insects of Java have somewhat of a similar appearance. In the subject 

 in question, the antennae (and most probably those of the females) are 

 simply serrated. The mandibles appear to terminate in an entire point, 

 or without tooth. The last articulation of the palpi is a little larger, and 

 almost oblong. Supposing that the mandibles of the Phyllocesi are similar, 

 those exotic species will be congenerous. 



