COLEOPTERA. 441 



In the remaining Melyrides the maxillary palpi are terminated by 

 a larger and securiform joint. This character, together with the 

 shortness of the first joint of the tarsi, and some other considerations, 

 seems to approximate them to the Insects of our next tribe. They 

 form the 



Pelocophorus, Dej., 

 "Who arranges them with the tetramerous Coleoptera *. 



The fourth tribe of the Malacodermi, that of the Clerii, is distin- 

 guished by the ensemble of the following cliaracters. 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 serrated, and at others insensibly enlarged near the ex- 

 tremity. The body is usually cylindrical, the head and thorax nar- 

 rower 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 tlie genus 



Clerus, Geoff. 



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

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

 serrated. 



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. 



The only species known — Trichodes cyaneus. Fab. — inhabits 

 the Isle of France, 



* Catalogue, &c., Dej., p. 115; Notoxns Illiyeri, Schoen., Synon. Insect, I, 

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

 I will call DiGLOBiCERUs. The antennae 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. 

 Lefdbure de Cerisy. 



