a Family of Coleopterous Insects. 673 



abdomine paul6 breviora. Perfes longiores, femoribus tibiis- 

 que simplicibus. 



This species was received by the late Mr. Francillon from 

 New Holland, and was figured by Donovan in his work upon 

 the insects of that country. 



I am not aware in whose possession the original specimen is 

 at present. It differs materially from the C. latipes not only in 

 its uniform brunneous colour, but also in its narrow form and 

 more slender legs. The preceding specific characters are chiefly 

 derived from Donovan's figure of the species, his description 

 being very short. 



Mr. Donovan also speaks of another species of this genus 

 brought from Bengal by M. Fichtel, who consigned it to the 

 Imperial Cabinet at Vienna, of which, however, he has unfortu- 

 nately omitted to give the characters, and, as far as I have been 

 enabled to ascertain, the entomologists of that city have not yet 

 supplied the deficiency. 



Genus 6. Trochoideus* mihi. Pausus, Dalman. 

 Corpus subovatum, subconvexum. Caput subtriangulare, apice 

 tamen truncato, collo postico nullo. Os aliquantilm pro- 

 ductum. Labrum integrum. Mandihula breves, labro ferfe 

 tectae. Palpi maxillares filiformes, crassiusculi, 3-articu- 

 lati, articulis aequalibus, Imo 2doque breviter obovatis, 

 apicali conoid eo. Palpi labiaks brevissimi. AntenncB 

 spadiceai, clav^ magn^ obovat^, in capitis apice insertae, 

 supra OS, ab oculis aliquantilm remotae, longitudine circiter 

 capitis cum thorace, articulus Imus sat longus obovatus 

 vel pyriformis, 2dus parvus breviter obconicus (ad articuli 

 2di basin, certo situ, articulus alius minutissimus apparere 



* T^oy^iuliii, rotundus ; in allusion to the rounded apex of the elytra. 



4 R 2 videtur. 



