428 M}\ Kirby's Century of Insects. 



Maxillce apcrtee. 



Falpi brevissimi, conici. 



Menttim cordatum. 



Antenme integral, basi submoniliformes, apice clavatse : clava tri- 



fida perfoliata: articulo extimo in maribus longissimo 



cjlindrico. 

 Corpus obcuneatum. 

 Tliorax teretiusculus. 



I sent, a sketch of an insect of this genus to M. Latreille, and 

 he was of opinion that it belonged to a genus he had constructed, 

 but which is not yet pubUshed, under the name of Orthorhj/nchus. 

 I have since been informed by him, that the type of that genus is 

 Lixtis semipunctatus Fabr., which from Olivier's figure appears to 

 be more nearly related to Lixus hidentatus of Mr. Donovan, and 

 is distinguished by acuminated elytra and filiform antennae; 

 whereas no species of Etirhimis, and there are several, has acumi- 

 nated elytra, and the antennae terminate in an oblong clava, the 

 last joint of which, in the males, is very long. Olivier describes 

 Lixus semipunctatus as antennis moniliformibus vix extrorsum cras- 

 sioribus (v. 242. n. 242. t. xVu f. 141.) In L. bidentatus the an- 

 tennae are not moniliformes, but they are extrorsum vix crassiores. 

 So that Orthorhynchus seems to be a connecting link between 

 Eurhynus, the antennae of which are submoniliform at the base, 

 and Lixus bidentatus, but belonging to the same genus with the 

 latter. Tliere are several species of Orthorhynchus in Mr. Mac- 

 Leay's rich cabinet. As Lixus semipunctatus is in the Banksian 

 cabinet, it may be easily ascertained whether these observations 

 are correct or not. 



scabrior, 65. Eu. niger, piloso-incanus, elytris striatis, basi sub- 

 cristatis, granulis tuberculisque acutis scabris. 



Plate 



