294 Mr. J. S. Baly's descriptions of new genera 



quum, aplce concavo-emarginatum. Pedes simplices; 

 coxis anticis prosterno fere Eequialtis; femorihus posticis 

 incrassatis; tibiis anticis quatuor apice muticis; tibiis pos- 

 ticis dorso non canaliculatis, apice spina acuta armatis; 

 tar sis posticis articulo basali tibiae dimidio paullo breviori ; 

 unguiculis appendiculatis. 



Type Aprcsa Jansoni. 



The present genus differs from Aphthona in the absence 

 of spines at the apices of the four anterior tibiae and in the 

 distinctly lobed basal margin of the thorax. 



Aprcea Jansoni. 



Ovata, convexa, picea, nitida, supra cupreo-micans aut 

 piceo - cuprea, vertice pectoreque nigro-piceis, pedibus 

 (femoribus posticis apice exceptis) antennisque fulvo- 

 piceis, his apice nigro-piceis; thorace nitido, irregulariter 

 hie illic profunde punctate ; elytris oblongis, convexis, 

 dorso paullo deplanatis, utrisque infra basin transversim 

 depressis, regulariter punctato-striatis ; interspatiis planis, 

 sat remote, minute punctatis. 



Long. 1^ lin. Mab. — Jamaica. 



Head subtrigonate ; vertex and front nitidous, sparingly 

 impressed with very minute punctures ; encarp^ thickened, 

 transversely ovate, separated at their point of junction by 

 a deep fovea ; carina narrowly oblong, attenuated towards 

 its apex, its surface plane; antennee filiform, rather more 

 than half the length of the body, five lower joints piceo- 

 fulvous, the rest nigro-piceous. Thorax more than twice 

 as broad as long; sides rounded and converging from base 

 to apex, the anterior angles thickened, obtuse; basal 

 margin bisinuate on either side, the medial lobe mode- 

 rately produced, obtusely rounded; upper surface trans- 

 versely convex, excavated on either side at some distance 

 from the lateral margin, coarsely and strongly punctate, 

 the punctures irregularly congregated over the surface; 

 interspaces nitidous, impressed, but not closely, with 

 minute punctures. Elytra broader than the th6rax, ob- 

 long, convex, transversely depressed below the basilar 

 space, the latter very faintly thickened; strongly and 

 regularly punctate-striate, interspaces plane, very faintly 

 convex near the outer margin, sparingly impressed with 

 very fine punctures. 



