Phytophaga Malayana. 221 



infra basin et intra callum humerale sat profunde excavatis, 

 tenuiter pinictato-striatis, striis pone medium fere deletis ; 

 linea suturali ante apicem abbrcviaia, liml)is basali et laterali 

 (hoc pone medium obsoleto), callo humerali punctoque sub- 

 marginali pone medium posito, nigris ; pedibus elongatis, 

 femoribus subtus dente brevi armatis. 

 Var. A. Elytroriini signaturis plus minusve obsoletis. 

 Long. 2 lin. 

 Hab. Borneo. 



Head moderately exserted, smootli, impunctate ; epistome 

 wedge-shaped, not separated at its apex from the front, anterior 

 border subangulate-emarginate ; middle of front impressed with 

 a short longitudinal fovea ; encarpae separated from the front by 

 a single row of punctures ; eyes large, prominent, their inner edge 

 sinuate; jaws nigro-piceous. Thorax half as broad again as 

 long; sides moderately rounded, slightly sinuate in the middle, 

 all the angles tuberculate ; upper surface smooth, impunctate; the 

 anterior margin bounded within by a deeply sulcate groove which 

 extends entirely across the thorax. Scutelium trigonate, its apex 

 rounded. Elytra broader than the thorax, oblong, slightly nar- 

 rowed posteriorly, excavated below the basilar space and within 

 the humeral callus, the latter prominent; striae finely punctured, 

 nearly obsolete towards the apex. 



1 1'. Nodostoma placidum, n. sp. 

 Oblongum, convexum, pallide flavum, nitidum ; antennis (basi 

 excepta) fuscis ; thorace transverso, elytris fere eequiiato, 

 lateribus rotundatis, pone medium obsolete angulatis, hinc ad 

 apicem obliquis, tenuiter remote punctato, pone apicem 

 transversim sulcato, rnargine apicali piceo ; elytris parallelis, 

 infra basin et intra callum humerale excavatis, hoc elevato ; 

 utrisque infra basin plaga pallide picea maculatis ; striis sat 

 fortiter punctatis, inierspatiis convexiusculis, striis apicem 

 versus fere deletis, interspatiis planis ; pedibus subelongatis, 

 femoribus subtus dente brevi armatis. 

 Long. 1 h lin. 

 Hab. Borneo. 



Head slightly exserted ; vertex convex, nearly impunctate, a 

 few punctures being visible on either side above the eyes, on the 

 lower portion of the front and on the epistome ; the latter wedge- 

 shaped, not separated at its apex from the front, its anterior border 



VOL. IV. THIRD SERIES, PART II. — AUGUST, 1867. R 



