Phytophagous Coleoptera. 449 



long; sides straight and parallel, the hinder angle thickened, 

 setiferons; disc shining, impnnctate, nearly covered with a broad 

 deep transverse excavation, which does not quite extend to the 

 lateral margin; in the medial hue is a narrow longitudinal space 

 less deeply excavated than the rest of the surface. Scutellum 

 trigonate, shining black. Elytra broader than the thorax, 

 obsoletely dilated towards the apex, faintly excavated below 

 the basilar space, rugulose, rather closely punctured. Apex 

 of the last abdominal segment deeply concave-emarginate. 



2. Mimastra Uinhata, n. sp. 



Elongata, angustata, parallela, nitida, nigra, femoribus anticis 

 quatuor (vitta dorsali exceptu) tibiisque anticis quatuor basi, 

 sordide fiilvis; supra sordide fulva, antennis (basi picea except;!) 

 nigris; capitis vertice thoracisque maculis piceis; thorace lajvi, 

 utrinque late transversim excavato, lateribus rectis, parallelis; 

 elytris thorace latioribiis, parallelis, infra basin leviter trans- 

 versim depressis, fortiter et sat crebre punctatis, interspatiis, 

 transversim rugulosis, viridi-metallicis, utrisque, apice excepto, 

 fulvo limbatis. Long. 6 lin. 



Var. A. Thoracis maculis intermediis piceis obsoletis. 

 Hab. The hills of Assam. 



Vertex impressed with very fine transverse strife; encarj)JB 

 thickened, transverse, elongate- trigonate, contiguous, their sur- 

 faces finely granulose ; carina ill defined ; antennas slender, 

 fihform, nearly equal to the body in length, the second joint 

 very short, the third twice its length, the fom-th equal in length 

 to the two preceding united ; three basal joints obscure piceous, 

 the rest black; clypeus granulose; apices of jaAvs nigro-piceous. 

 Thorax nearly one-half broader than long; sides straight and 

 parallel, the anterior angles thickened, oblique; basal margin 

 obliquely sinuate at either end, transversely truncate in the 

 middle, faintly truncate just in front of the scutellum ; disc 

 shining, impunctate, broadly excavated transversely on either 

 side, impressed just before the base with a round fovea ; sur- 

 face marked with five black spots, two large placed one on 

 either side near the lateral border, two smaller situated trans- 

 versely just in front of the middle, and one very small placed 

 on the basal fovea. Scutellum trigonate, pale piceous. Elytra 

 coarsely punctured, their whole surfaces covered with coarse 

 irregular transverse ruoaj. 



