5î)4, Rev. F. W. Hope on some Nondescript Insects from Assam. 



word, first used by Pliny, may be of Asiatic origin ; but this poiut 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 Cheirotunus MacLeaii. 



Generic Character. 



Corpus oblongo-ovatum, crassum. 



Caput subquadrangulare, clypeo subquadrato, lateribus subelevatis. 



Antenna' lO-articulata*, articulo I mo et 7nio interne acutis, tribus ultimis 



clavam efForinantibus. 

 Lahriim transversum, antice emarginatum, angulis lateralibus rotundatis, an- 



tice dense et longé ciliatis. 

 Mandihulœ elongatœ, compressée, inermes, interne valdè ciliatœ. 

 Maxilliv mandibulis longiures, apice longissimè ciliatic, margine interno den- 



ticulato. 

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

 culo ultimo oblongo-ovato, apice truncato. 

 Mention elongatum, basin versus angustatum, valdè setigerum, basi abrupte 



latiori, angulis anticis lateralibus rotundatis. 

 Ldhiinn brève, valdè emarginatum. 

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



obovato. 

 Thorax elytris anticè angustior, lateribus subrotundatis valdè serrulatis, dorso 



fortiter punctato et in medio longitudinaliter impresso. 

 Eli/tra thorace latiora, convexa, nitida, lateribus ferè rectis. 

 Pedes robusti, armati, anticè longiores, tibiis irregulariter externe dentatis, 



tarsis elongatis, articulis apice spina brevi armatis, unguibus bidentatis 



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



bus spinaruin armatœ. 



* From ^eipoTovoi, ' qui manibus extensis'. 



