58 MR. M, JACOBY ON PHYTOPHAGOUS COLEOPTERA. [Jau. 3, 



black spot near the scutellum and another broad baud of the same 

 colour, the anterior part of which is greatly narrowed and concave 

 at its inner margin ; this band does not extend quite to the lateral 

 margin or the apex. Underside and femora testaceous ; tibise and 

 tarsi black. 



My collection and that of the British Museum. 



14. Malacosoma flavomarginatum, sp. noT. 



Elongate, testaceous. Head and thorax fulvous ; elytra closely 

 nunctured, blackish blue, the lateral and sutural margins flavous. 



Length 3 lines. 



Hab. South Africa. 



Head convex, closely punctured. Antennae half the length of the 

 body, black, first three joints flavous. Thorax of the same shape as in 

 M. quadrimaculatum, its surface distinctly but less closely punctured. 

 Scutellum flavous. Elytra very closely and rather strongly punc- 

 tured, black with a bluish tiut, the sutural and lateral margins, as 

 well as the apex, narrowly flavous. Underside and legs of the same 

 colour ; tarsi piceous. 



Collection Jacoby. 



GoNioPLEURA, Westwood. 



1.5. GONIOPLEURA BASALIS, Sp. UOV. 



Elongate, convex, rufous. Thorax finely punctured, its sides tri- 

 dentate ; elytra finely pubescent, metallic green or blue, the base 

 more or less broadly rufous. 



Length 7 lines. 



Hab. Sumatra. 



Head finely and closely punctured. Clypeus slightly transverselv 

 depressed, its anterior margin deeply concave and bidentate. Apex 

 of jaws black. Antenuce light fulvous, extending to one third the 

 length of the body. Tiiorax subquadrate, punctured like the head ; 

 each lateral margin produced at the middle into a biangulate flat 

 protuberance preceded by a small tooth, from which an oblique 

 depression extends across the disk towards the base. Scutellum 

 rufous. Elytra convex and parallel, closely and rather more strongly 

 punctured than the thorax, and covered, especially towards the apex, 

 with whitish pubescence ; metallic green or blue, witli a more or less 

 broad rufous transverse band at the base. Underside and legs 

 rufous. 



Collection Jacoby and British Museum. 



From G. viridipennis , Clark, to which the present species bears a 

 great resemblance, it may be distinguished by the dentate and 

 angulate lateral thoracic margin, which in Clark's species consists of 

 a single tooth only, while here it is followed by an almost square- 

 shaped broad angular protuberance. The rufi)us basal margin of 

 the elytra varies in width, but is constant. This species forms the 

 fourth of the genus Gonioplev.ra. 



