[Proc. Rot. Soc. Victoria, 27 (N.S.), P'r. I., 1914J. 



Aim'. Hi. — Threr New African ('ieadas. 



By HOWARD ASH TON. 



(With Plate III.) 



[Read 14th May, 1914]. 



All these species come from Central Africa, and all belong to 

 the dominant African genus Platypleura. The first one, P. nir/ro- 

 marginata, is distinguished by its immensely dilated pronotal 

 angles, being allied to Butler's P. quadniticoUis, but differing in 

 the lighter colour of the liead and thorax, and the generally yellow 

 venation of wings and tegmina. It is also smaller than Butler's 

 species. 



The second species, P. s/kiunha, is the smallest of this genus, I 

 think, so far recorded from Africa, It is a very distinct little 

 species, being placed in Distant's divison of the genus, in whicli tlie 

 tegmina and wings are wholly opaque. The only hyaline or trans- 

 parent portions are the first discoidal and a small spot in the 

 second discoidal areas, a postcostal spot in the radial area, a 

 fascia extending along the basal halves of apical areas, except the 

 ■seventh, some minute spots at the extreme apices of these areas, and 

 the tegminal and wing margins. The general effect of the tegmina 

 is of a broad fuscous wing, with two transparent fasciae running 

 diagonally along the apical half. 



The third species, P. longirostris, is closely allied to P. adouma, 

 Dist., but may be at once distinguished by the yellow colouration 

 of the wings. It somewhat resembles Walker's P. signifera, 

 but differs by the fact that its tegmina and wings have no 

 parent spots, and that the margins, whicli are very narrow, are 

 coloured right to the edge. The rostrum, also, is very much longei-. 



The genus Platypleura, besides being widely distributed over 

 Africa, Asia, Malaysia, and the Philippines, lias Ijeen recorded by 

 Mr. W. W. Froggatt, from Northern Australia, a typical species 

 having been taken by Mr. J. 0. Tepper, and named after him. 



