the Orfhopfera in the British Museum. 147 



?. Lower valves of the ovipositor with the apical parts narrow, 

 distinctly denticulate basally. 



Genotype : Platyphymus granulafus, sp. n. 



Besides the genotype to this genus belong one more 

 new species, Calopenus illepi(h(s Walk, and Euryphymus 

 tricostatus Bol. 



1. Platyphymus granulatus, sp. n. 



(Plate I, figs. 5 and 6.) 



(^. Moderately rugose and with numerous callous granules and 

 tubercles. Antennae somewhat thickened, scarcely compressed. 

 Frontal ridge between the antennae flat, with a few punctures, at 

 the ocellum and below narrowly impressed. Cheeks with callous 

 granules forming oblique rows each side of the oblique sulcus. 

 Fastigium of the vertex elongate- hexagonal, about twice as long 

 as broad, with the apex very narrowly truncate; its surface dis- 

 tinctly impressed. Occiput with a fine carinula and radial post- 

 ocular callosities. Pronotum rather thick, strongly narrowed 

 anteriorly ; the disc slightly tectiform ; median keel slightly raised, 

 thick, shinmg, with a very fine longitudinal furrow, distinctly cut 

 by the third sulcus only ; lateral keels well developed, thick, shining, 

 irregular, deeply cut by the transverse sulci, distinctly divergent 

 between the fore margin and the second sulcus, less so from the 

 second sulcus to the hind margin, the distance between them at 

 the hind margin being half again as much as the distance at the 

 fore margin; prozona scarcely longer than metazona, with a pair 

 of small callous tubercles between the first and the second sulcus, 

 and two pairs between the second and the third sulcus, the hind- 

 most tubercles being the largest and very conspicuous; metazona 

 with scattered small tubercles, especially near to the hind margin; 

 fore margin distinctly rotundato-prominent ; hind angle straight, 

 not at all rounded, with the sides incrassate and slightly concave ; 

 lateral lobes with callous tubercles and rugosities. Prosternal 

 tubercle widened towards the apex which is rotundato-truncate. 

 Elytra reaching the base of the hind knees. The last tergite with 

 a small prominent tooth in the middle of the hind margin. Supra- 

 anal plate broader than long, rotundato-trapezoidal, with the 

 lateral margins rounded and distinctly incised opposite the trans- 

 verse carinulae; hind angles widely rounded; hind median projec- 

 tion rather thick, with a small emargination at each side of its 

 base; median keel low in the apical half and distinctly raised in 

 the basal half, where it is bifurcate; two large and low chitinous 



