176 Phytophagn Malay ana. 



jaws nigro-plceous. Thorax twice as broad as long; sides 

 rounded and converging from base to apex ; hinder angles sub- 

 tuberculate ; surface subremotely impressed with round shallow 

 punctures, irregular in size, largest on the sides and base, smaller 

 on the anterior disk, Scutellum rufo-piceous, semiovate, its 

 apex subacute. Elytra much broader than the thorax, parallel, 

 obsoletely excavated below the basilar space, deeply sulcate within 

 the humeral callus, the latter subprominent ; striae entire; inter- 

 spaces plane, very finely and subremotely punctured. 



20. Rhyparlda suhmctalUca, n. sp. 



Subelongata, convexa, nigra, nitida ; abdomine nigro-piceo; 

 thorace fortiter punctato; elytris obscure nigro-aeneis, infra 

 basin et intra callum humerale excavatis, striis sulcatis, dis- 

 tincte punctatis, apicem versus fere obsoletis ; femoribus 

 muticis. 



Long. 2| Up. 



Hab. Tondano. 



Head minutely granulose on the vertex, finely but not closely 

 punctured ; epistome longer than broad, subcuneiform, the apical 

 suture obsolete for a short space in the middle ; anterior border 

 trisinuate, the middle notch concave, broad ; surface subrugose- 

 punctate ; the usual longitudinal groove on the front obsolete; 

 labrum and jaws nigro-piceous ; antennae slender, two lower joints 

 obscure fulvous. Thorax more than twice as broad as long ; 

 sides regularly rounded, obliquely converging in front, all the 

 angles armed with a stout obtuse tooth ; surface coarsely and 

 irregularly punctured. Scutellum semiovate, its apex subacute. 

 Elytra broader than the thorax, parallel, slightly but distinctly 

 excavated below the basilar space, longitudinally impressed within 

 the humeral callus, the latter subprominent; striae sulcate in 

 front, somewhat strongly punctured, on the hinder disk they 

 become less distinct, and are nearly lost towards the apex; inter- 

 spaces in front distinctly convex, gradually flattened as they ap- 

 proach the apex. 



21. Rhypar'ida impressicollis, n. sp. 

 Oblonga, convexa, subtus piceo-fulva, nitida, supra piceo- 

 cuprea; antennis fuscis, basi fulvis ; thorace fortiter sub- 

 crebre punctato ; elytris violaceo-aeneis, cupreis, infra basin 



