BY W. MACLEAY, ESQ., F.L.S. 61 



iionable, and I incline to think that his Section 1, " Elytra juxta 

 marginem costigera " including Garenum tuberculatum mihi and 

 C. carinatum mihi (which I have no doubt is the second species 

 alluded to by the Baron, under the name of M'Leayi) ought to 

 constitute a distinct genus. 



The new species of Garenum described in the Baron's paper, 

 are, G. foveigeruni of the G. Spencii group ; G. iransversicolle, the 

 position of which is somewhat doubtful ; * G. Gastelnaui, of the 

 G. Bonelli group, and probably identical with G. interrwptum 

 mihi ; and G. convexum of the G. marginatum group. 



M. le Baron has also formed a genus upon three species, 

 which differ chiefly from all the others of the Family, in having 

 only one external tooth to the anterior tibiae. This genus he has 

 named Monocentrum, and in addition to Garenum megaceplialum 

 of Westwood, which he has referred to it, he has described two 

 new species named respectively, grandiceps and longiceps. I 

 have never met with any one of the three species, nor have I 

 ever seen anything at all even remotely referable to the genus. 



Under the name of Conopterum insigne, the Baron de Chandoir 

 describes a peculiar form of insect also unknown to me, and it is 

 to the same genus that he believes the species Garenum superbum 

 and amabile of Castelnau mentioned above, should be referred. The 

 most marked characteristics of the genus are, a large head with 

 elytra broad at the base, and gradually decreasing towards the 

 apex. 



The genus Garenidium of the same author is formed on the 

 Garenum gagatinum mihi. It is clearly a good genus, in the 

 form of the elytra, somewhat resembling the last, but its most 

 marked characteristics are its excavated labrum and pointed 

 antennae. As the Baron de Chandoir's treatise on the genus 

 Garenum above referred to, in which this genus (Garenidium) is 

 described, is not easily procurable in Sydney, I will, when I come 



* Since writing the above, I have seen a specimen of this insect among 

 some Coleoptera, sent by Mr. Diggles from Moreton Bay. The impnnctate 

 elytra would place it in the C. politum group, but the transverse rectangular 

 thorax agrees with that of C. rectangulare, and is utterly unlike that of any 

 other species of Carenum. 



