594 Rev. F. W. Hore 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. 
Eucaerrinæ. Hope. 
CHEIROTONUS *, 
Type of the genus Cheirotonus MacLeaii. 
Generic Character. 
Corpus oblongo-ovatum, crassum. 
Caput subquadrangulare, clypeo subquadrato, lateribus subelevatis. 
Antenne 10-articulatæ, articulo Imo et 7mo interne acutis, tribus ultimis 
clavam efformantibus. 
Labrum transversum, anticè emarginatum, angulis lateralibus rotundatis, an- 
ticè densè et longé ciliatis. 
Mandibule elongate, compressæ, inermes, internè valdè ciliate. 
Maxillæ mandibulis longiores, apice longissimè ciliatæ, margine interno den- 
ticulato. 
Palpi mazillares 4-articulati, articulis sensim magnitudine crescentibus, arti- 
culo ultimo oblongo-ovato, apice truncato. 
Mentum elongatum, basin versüs angustatum, valde setigerum, basi abrupte 
latiori, angulis anticis lateralibus rotundatis. 
Labium breve, valdé emarginatum. 
Palpi labiales 3-articulati, articulis duobus basalibus, ultimo majori sub- 
obovato. 
Thorax elytris anticè angustior, lateribus subrotundatis valde serrulatis, dorso 
fortiter punctato et in medio longitudinaliter impresso. 
Elytra thorace latiora, convexa, nitida, lateribus fer? rectis. 
Pedes robusti, armati, antice longiores, tibiis irregulariter externè dentatis, 
tarsis elongatis, articulis apice spina brevi armatis, unguibus bidentatis 
setisque duabus in medio positis. Tibiæ 4 posteriores seriebus irregulari- 
bus spinarum armatze. 
From xetporovos, qui manibus extensis’. 
