PLATYPLEURA. 59 



Siibgen. Pcecilopsaltria, Stal, Hem. Afr. iv, p. 2 (1866) ; Dist. Man. 

 Orient, dead. p. 5 (1889). 



Type. Genus Flatypleura, P. stridula, Linn. ; a S. African species. 



Subgen. O.iyplfnra, O. clara, Amy. & Serv. ; an Ethiopian 



species. 

 Subgen. Pcecilopsaltria, P. octogiittata, Fabr. 



Distribution. Ethiopian, Oriental, Malayan, and Eastern Palse- 

 arctie Regions *. 



Body robust, somewhat short; abdomen in male about as long as 

 space between apex of head and base of cruciform elevation : head 

 broad, truncate anteriorly, including eyes a little or scarcely broader 

 than base of raesonotura, ocelli about twice and sometimes thrice 

 the distance from eyes as from each other, face moderately convex 

 not prominent above ; pronotum with the lateral margins ampliated 

 or laminately medially angulate ; anterior femora not prominently 

 spined ; metasternum with a central elevated plate-like process, 

 which is centrally sulcated and posteriorly somewhat sinuately 

 truncate ; tympana practically concealed by the tympanal flaps or 

 coverings ; opercula in male short, broad, their apices more or less 

 convexly rounded ; tegmina and wings either hyaline or more 

 or less opaquely coloured, tegmina with the basal cell a little longer 

 than broad ; the costal membrane only moderately dilated or arched 

 at base, apical areas eight in number. 



Oxypleiu-a, Amy. & kServ., merely includes species with hyaline, 

 non-opaque tegmina and wings: Pcecilopsaltria,^{ti\.,'L have hitherto 

 regarded as distiiict from PJatypleiira by the slightly greater width 

 of the head including eyes, but I now think that difference alone 

 is too slight for generic separation ; it may, however, be stated 

 that the generic form described by Stal is more dominant in the 

 Oriental Region, while the character of typical Platyphura is a 

 marked feature in the Ethiopian species. 



I. Head including eyes a little wider than base of mesonotum. 



a. Breadth hetween pronotal anr/les greater than space between 



apex of head and base of cruciform elevation. 



b. Tegmina and wings hyaline, the first sometimes more or less 



spotted. 



c. Pronotal margins medially angularly produced. 

 d. nostrum extending to half the length of abdomen. 



1534. Platypleura bufo, Walk. (Oxyplem-a) List Horn. \, p. 27 (1850) ; 

 Atkins. (Platvpleura) J. A. S. Beng. liii, p. 216 (1885); id. 

 J. A. S. Beng. Iv, p. 149 (1886) ; Dist. (Pcecilopsaltria) Man. 

 Orient. C'icad. p. 5, t. viii, f. 20 a, h (1889). 



Head and pronotum brownish ochraceous ; head with two some- 



* Goding and Froggatt have recently described a species from Northern 

 Australia as belonging to Platypleura. They, however, describe it as similar to 

 the Madagascar species P. guttidcda, Sign., which I place in my genus Yanga. 



