Phytophaga Malay ana. 229 



than broad, trigonate, its apex obtuse. Elytra oblong, broadly 

 excavated below the basilar space, longitudinally sulcate within 

 the humeral callus, the latter thickened, its lower extremity pro- 

 duced downwards into a short elevated costa, which runs obliquely 

 downwards and outwards to the lateral border ; striae impressed 

 with large round punctures, which, deep and distinct on the an- 

 terior disk, become very shallow behind the middle, and are 

 nearly lost towards the apex ; basilar space thickened, nearly 

 impunctate. 



This species bears some resemblance to Rhyparida lateralis 

 (ante, p. 210). 



C. Antennce filiform or subfiliform ; bodj/ elongate or subelongate, 



metallic. 



25. Nodostoma tubercidatum, n. sp. 

 Elongatum, convexum, viridi-metallicum; antennis nigris; tibiis, 

 tarsis elytrisque viridi-caeruleis ; his anguste viridi-limbatis, 

 infra basin sat profunde excavatis, utrisque ad humeros 

 irregulariter tuberculatis, callo humerali elevato ; striis for- 

 titer punctatis, leviter sulcatis ; interspatiis obsolete con- 

 vexiusculis. 

 Long. 2|— 3 lin. 

 Hab. Tondano. 



Head slightly prominent; face plane; surface irregular, coarsely 

 punctured ; middle of the front impressed with a faint longitudinal 

 line ; epistome not separated from the front, its anterior border 

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

 broad subacute tooth ; encarpas separated from the front by a 

 grooved line, the surface of the latter impressed with a single row 

 of punctures ; eyes oblong, subprominent, nearly entire ; antennae 

 black, with a purplish reflexion, basal joints stained with metallic- 

 green above, piceous beneath ; jaws black; labrum nigro-piceous. 

 Thorax more than half as broad again as long; sides rounded, 

 obsoletely angled behind the middle, thence to the apex obliquely 

 converging, very slightly angled just before the middle ; surface 

 shining, subremotely impressed with deep punctures ; just behind 

 the anterior border is a deep transverse sulcation. Scutellum 

 longer than broad, subpentagonal, sides converging. Elytra 

 broader than tlie thorax, oblong, deeply excavated below the 

 basilar space, longitudinally sulcate within the humeral callus, the 



