146 Mr. B. P. Uvarov's Notes on 



the inner side, while the rest of the latter is shining black, except 

 the bright yellow apex. Hind tibiae yellow, with scarcely per- 

 ceptible brownish rings. Hind margins of all abdominal segments, 

 almost the whole of the last tergite and the end of the cerci, black. 



Length of body 26 mm. ; of pronotum 7 mm. ; of elytra 23 mm. ; 

 of hind femora 14-5 mm. 



Dimensions of the paratypic female are as follows : Length of 

 body 29 mm. ; of pronotum 9 mm. ; of elytra 25 mm. ; of hind 

 femora 18 mm. 



British Museum specimens : Herbert, Cape Province, 

 15 V. 1917, 1 (^ (ftfpe) ; Stijdenburg, Cape Province, 

 26 ii. 1917, 1 5; Orange Free State, Bloemfontein distr., 

 Bethiilie, Dealesville to Bloemfontein, Petrusburg, 4 ^(^, 

 1 $ {all the foregoing specimens collected by Ch. Lounsbiiri/ 

 and J. Faure) ; Orange River Colony, 8 SS, 23 ?$ {G. E. H. 

 B.-HamUton) {the last 37 specimens are cotypes). 



The sculpture of the head and pronotum is somewhat 

 variable in this species, but other morphological characters 

 are constant. 



Platyphymus, gen. nov. 



Related to Platacanthoides Kiiby, but differmg from in the 

 following charactei's : — 



Not smooth, but more or less granulose. Frontal ridge in profile 

 strongly prominent between the antennae, and therefore decidedly 

 reclinate, more so in males. Fastigium of vertex in males elongato- 

 pentagonal, distinctly impressed, in the females rotundato-penta- 

 gonal, feebly impressed, in both sexes distinctly, though not sharply^ 

 separated from the frontal ridge. Cheeks more or less rugulose 

 and granulose, with the oblique sulcus distinct. Disc of the pro- 

 notum with, at least, one pair of small callous tubercles between 

 the second and the third sulcus, often with additional tubeicles 

 and granules scattered elsewhere. 



(J. Supra-anal plate distinctly narrowed posteriorly, rotundato- 

 trapezoidal ; a pair of basal chitinous tubercles, one each side of 

 the basal sulcus ; a pair of tubercles close to the median keel beyond 

 the middle of the plate, and a pair of transverse carmulae sideways 

 from these latter tubercles; lateral margins with a slight inflexion 

 opposite these carinulae ; hind angles widely rounded. Cerci hook- 

 shaped, with both basal and apical parts vertical and practically 

 equally thick; the apical part distinctly longer than the basal, 

 with the apex obtuse, or somewhat widened. 



