ORDER COLEOPTERA. 317 



rior feet are lodged, when in a state of contraction, in the 

 lateral sinkings of the under-part of the corslet. Such are, 



Adelocera, Lat.* 



Others, with antennae equally of the same thickness through- 

 out, have the articulations of the tarsi entire, but with under 

 pellets prolonged and advanced, like little palettes or lobes. 

 Their head is uncovered. These are. 



LissoMus, Dalm. Lissodes, Lat. Drapetes, Meg. Dej.-f- 



Others have the antenna? equally filiform, but the second 

 and [third articulations, which are larger than the following 

 and flatted, alone lodge in the sternal grooves ; the tarsi 

 resemble those of lissomus ; the head is concealed under- 

 neath, and, as it were, covered by a semi-circular corslet, in 

 which it is sunk. Such are, 



Chelonarium, Fab. 



The antennae in a state of repose, extend parallelly the 

 length of the breast. The first and fourth articulations are 

 the smallest of all, the following seven are of the same size, 

 and with the exception of the last, which is ovoid, are almost 

 in the form of a reversed cone, and equal. The body is 

 ovoid, with the anterior legs broader than the others. All 

 the known species are of South America. 



The last sub-genus of this first division, that of 



* Elater ovalis, Germ.; Elater fusciis. Fab., and some others from the 

 East Indies, brought by M. Labillardiere. 



■\ Dalm. Epen. Entom. 1824. It is Lissomus punctulatus — has great 

 relations with the Drapetes Castaceus of M. le Comte Dejean, and the 

 Elater Itevigatus of Fabricius. 



Europe has one species of this sub-genus, Elater equestris, of the latter, 

 figured, by Panzer, Faun. Insect. Germ. XXXI. 21. 



