246 Phytophaga Malayana. 



sulcate, interspaces convex, those on the outer disk thickened. 

 Anterior thighs strongly thickened. 



48. Nodostoma imperiale, n. sp. 

 Breviter ovatum, convexum, viridi-cyaneum, nitidum; abdomine 

 nigro-cseruleo ; antennis filiformibus, nigris, basi fulvis ; tho- 

 race lateribus rotundatis, disco subremott profunde punc- 

 tato, lateribus profunde et crebre punctatis, interspatiis 

 elevato-reticulatis ; elytris purpureis, thorace latioribus, con- 

 vexis, infra basin leviter excavatis ; striis integris, minus 

 fortiter punctatis, obsolete sulcatis, interspatiis fere planis ; 

 femoribus incrassatis, muticis. 

 Long. I7 lin. 

 Hab. Sumatra. 



Head short, coarsely and distantly punctured, the punctures 

 scattered irregularly over the surface ; anterior border of epistome 

 concave- emarginate, angles of the notch produced each into a 

 subacute tooth ; encarpae separated from the front by a single 

 row of deep punctures ; labrum nigro-piceous ; jaws black ; an- 

 tennae half the length of the body, four lower joints fulvous, 

 stained with piceous above. Thorax twice as broad as long ; 

 sides rounded, converging from base to apex, angles tuberculate ; 

 surface impressed just behind the anterior border with a shallow 

 transverse groove, disk deeply and coarsely but subremotely 

 punctured; sides closely and deeply punctured, interspaces on the 

 sides elevate- reticulate. Elytra broader than the thorax, sub- 

 quadrate-oblong, apex broadly rounded, lateral margin narrowly 

 dilated ; convex, slightly excavated below the basilar space, longi- 

 tudinally sulcate within the humeral callus, the latter thickened ; 

 strise distinctly but not coarsely punctured, entire, very faintly 

 sulcate, punctures placed somewhat irregularly on the striae ; in- 

 terspaces nearly plane, obsoletely wrinkled. 



49. Nodostoma castaneum, n. sp. 

 Breviter ovatum, valde convexum, castaneum, nitidum ; antennis 

 nigris, basi et apice obscure fulvis ; thorace lateribus rotunda- 

 tis, antice paullo convergentibus, tenuissime remote punctato; 

 elytris thorace latioribus, subquadrato-oblongis, convexis, 

 margine laterali paullo dilatato, infra basin excavatis, intra 

 callum humerale sulcatis, hoc incrassato ; striis integris, 



