594 Rev. F. W. Hope on some Nondescript Insects from Assam. 



word, first used by Pliny, may be of Asiatic origin; but this point I willingly 

 leave to others to decide, and proceed next to describe one of the most remark- 

 able forms of Lamellicorn Beetles which has ever fallen under my notice. 



EuCHEiRiD^. Hope. 



Cheirotonus*. 



Type of the genus Cheirotonus MacLeaii. 



Generic Character. 



Corpus oblongo-ovatum, crassum. 



Caput subquadrangulare, clypeo subquadrato, lateribns subelevatis. 



Antennce lO-articulatse, articulo Imo et 7nio intern^ acutis, tribus ultimis 

 clavam efformantibus. 



Labrum transversum, antic^ emarginatum, angulis lateralibus rotundatis, an- 

 ticfe densfe et longe ciliatis. 



Mandibulce elongatse, compressse, inermes, interne valdfe ciliatse. 



Maxillce mandibulis longiores, apice longissimfe ciliatse, margine interno den- 

 ticulate. 



Palpi maxillares 4-articulati, articulis sensim magnitudine crescentibus, arti- 

 culo ultimo oblongo-ovato, apice truncate. 



Mentum elongatum, basin versus angustatuni, valdfe setigerum, basi abrupte 

 latiori, angulis anticis lateralibus rotundatis. 



Labium breve, valdfe emarginatum. 



Palpi labiales 3-articulati, articulis duobus basalibus, ultimo majori sub- 

 obovato. 



Thorax elytris antic^ angustior, lateribus subrotundatis valdfe serrulatis, dorso 

 fortiter punctato et in medio longitudinaliter impresso. 



Elytra thorace latiora, convexa, nitida, lateribus fer^ rectis. 



Pedes robusti, armati, antic^ longiores, tibiis irregulariter externe dentatis, 

 tarsis elongatis, articulis apice spina brevi armatis, unguibus bidentatis 

 setisque duabus in medio positis. Tibice 4 posteriores seriebus irregulari- 

 bus spinarum armatae. 



* From ■}(_eipoTovos, ' qui manibus extensis'. 



