Phytopliagous Coleoptera. 459 



twice as In-oad as long ; sides rounded, narrowly uiaryiiiod, 

 straight and diverging from the base to the middle, all the 

 angles produced, the hinder ones acute, the anterior ones 

 excurved, the apex obtuse; disc smooth and shining, faintly- 

 excavated on either side near the middle. Scutellum black, tri- 

 gonate. Elytra broader than the thorax, parallel, convex, not 

 impressed below the basilar space, rather closely and somewhat 

 strongly punctured. 



Genus monolepta, Erichs. 

 1. Monolepta cavipennis, n. sp. 



Elougato-ovata, convexa, flava, nitida, pectore, scutello, femo- 

 ribus ]:»asi capitisque vertice nigris; thorace lasvi, tenuissime 

 punctato ; elytris tenuissime punctatis, basi et apice, plagaque 

 irregulari vix pone medium transversim posita, nigris ; utrisque 

 disco externo fovea magna cuneiform!, a-callo humerali ad pauUo 

 pone medium extensa, extus et postice ad apicem, elevato-mar- 

 ginata, impressis. Long. 2f lin. 



Mas. Antennis corpore multo longioribus ; abdominis a})ice 

 trilobato. 



Hab. TheHiUs. 



Vertex shining, impunctate; encarp^ separated from the front 

 Ijy a transverse groove, thickened, subti'igonate, their upper 

 halves contiguous; carina raised, its apex extending upwards 

 l:)Ctween the lower halves of the encarpaj; antennaj much longer 

 than the body, fihform ; the third joint one-half longer than 

 the second, the fourth eipial in length to the two preceding 

 united. Thorax twice as broad as long; sides sinuate near the 

 l)ase and apex, rounded in the middle, the anterior angles 

 }»i-oduced, slightly thickened, obtuse; basal margin sinuate- 

 emarginate just in front of the scutellum ; disc convex, minutely 

 punctured, the punctures only visible under a deep lens. Elytra 

 broader than the thorax, narrowly oblong-ovate, convex, as 

 finely punctured as the thorax; each elytron with a large wedge 

 shaped excavation, which, commencing just below the shoulder 

 and increasing in depth and width towards the apex, runs down- 

 wards on the outer disc to just below its middle, the apex, 

 which is rounded, is surrounded by a strongly raised callosity, 

 which forms a transverse hump extending nearly across the 

 disc of the elytron, the outer edge of the fovea is also narrowly 

 thickened for the lower half of its course. 



The above description is drawn up from a ^ , in the ^ the 

 fovea and also the hump on the elytra arc probably absent. 



