428 H. W. BATES 



Aristolebia , nov. gen. 



A. Lebiis differt tibiis intermediis </ apice intus haud incisis 

 sed bidenticulatis ; elytris apice late truncatis utroque angulo 

 acute dentato , thoraceque medio basi late brevissime lobato. 

 Mentum valide dentatum: palpi articulo apicali gracile fusiformi 

 truncate. Tarsi supra glabri, unguibus usque ad apices pectinatis 

 dentibus elongatis 9-10; postici articulo 4.^*^ emarginato nee bi- 

 lobo. Corpus laeve, politum. 



440. Aristolebia quadridentata, n. sp. 



Subelongato-oblonga, postice panilo dilatata, parum convexa, 

 supra nigra nitida; palpis, antennis thoracis limbo laterali, pe- 

 dibus, elytrorum macula rotundata antero-discoidali, et corpore 

 subtus cum epipleuris aurantiaco-flavis. Caput breve punctulatum 

 et indistincte strigosum; oculis maxime prominentibus. Thorax 

 subsemicircularis, capite dimidio latior, lateribus arouatis ; antice 

 multo magis quam postice angustatus, angulis anticis nuHis, 

 posticis rectis, basi fere truncate, lobe mediano lato brevissimo ; 

 supra punctulatus et subtiliter rugulosus sed politus; margine 

 laterali late explanato sed parum reflexo. Elytra ampia, postice 

 dilatata, truncaturae angulis externo et suturali longe et acute 

 dentatis, macula flava antero-discoidali sat magna rotundata inter 

 strias l.am et 6.^"^. — Long. 9 V2-II raillim. a^ 9- 



Bhamò. 



This fine species occurs also in Assam, a large and well 

 preserved </' example from w^hich country has furnished the 

 distinguishing sexual characters above-mentioned. The yellow 

 lateral limb of the thorax extends more or less -to the sides of 

 the disk. 



