COLEOPTERA. 



361 



tions, seems to approximate them to the Insects of our next tribe. 

 They form the 



Pelocophorus, Dej., 

 Who arranges them with the tetramerous Coleoptera(l). 



The fourth tribe of the Malacodermi, that of the Clerii, 

 is distinguished by the ensemble of the following characters. 

 Two of their palpi at least project and are clavate. The 

 mandibles are dentated. The penultimate joint of the tarsi 

 is bilobate, and the first is very short or but slightly visible in 

 several. The antennae are sometimes nearly filiform and ser- 

 rated, and at others insensibly enlarged near the extremity. 

 The body is usually cylindrical, the head and thorax narrower 

 than the abdomen, and the eyes emarginated. 



Most of these Insects are found on flowers, the remainder 

 on the trunks of old trees or in dry wood. Such of the larvae 

 as are known are carnivorous. 



This tribe will comprise the genus 



Clerus, Geoff. 

 The tarsi of some, viewed from above and underneath, distinctly 

 exhibit five joints. The greater part of their antennae is always ser- 

 rated. 



Of these, some have the maxillary palpi filiform, or slightly en- 

 larged near the extremity. 



Cylidrus, Lat. 



Mandibles long and much crossed, terminating in a simple point, 

 with two teeth on the internal side; four first joints of the antennae 

 cylindrical and elongated; the six following ones formed like the 

 teeth of a saw, and the last oblong; the palpi terminated by an elon- 

 gated joint; that of those attached to the maxillae cylindrical, and 

 the same of the labial palpi, rather thicker and forming a reversed 

 cone; penultimate joint of the tarsi distinctly bilobate. The head 

 is elongated. 



(1) Catalogue, &c, Dej., p. 115; Notoxus Illigeri, Schcenh., Synon. Insect., I, 

 2, p. 53, IV, 7, a. I refer to the same division of Melyrides, a new subgenus which 

 I will call DroLOBicEKus. The antennx consist of but ten distinct joints, of which 

 the two last are larger and globular. It is founded on an Insect sent to me by M. 

 Lefebure de Cerisy. 



Vol. III. 2 V 



