172 Mr. W. L. Distant on the Genus Platypleura. 



Exp. tegm. 62 mil Km. 



This species is allied to P. tricolor, White, from which it 

 differs by the longer tegmina and different colour of the same, 

 different colour of the tibise, &c. 



Cerynia maria. 



Pceciloptera maria. White, Ann. & Mag. Nat. Hist, xviii. p. 25, pi. i. 

 f. 3 (1846). 



XXII. — On some African Species of the Homopterous Genus 



Platypleura. By W. L. Distant. 



[Plate II. figs. & D.] 



In his excellent revision of the Cicadidse (Hem. Afr. iv.), by 

 which the late Dr. Stal for the first time placed the genera of 

 this interesting family of Homoptera on a scientific basis, and 

 cleared up much of the synonymy relating to the African 

 species, he not unnaturally made some errors. Evidently 

 trusting to the notes made when he visited the British Mu- 

 seum and with so much success rectified a considerable por- 

 tion of the Ehynchotal work of the late Mr. F. Walker, he 

 subsequently (Hem. Afr. iv. p. 19) stated that the Tettigonia 

 strumosa, Fabr., = the Oxyphura contracta. Walk., and be- 

 longed to the genus Platypleura. Mr. Butler, in a list of the 

 species of the genus (Cist. Ent. i. p. 183), in which he uses 

 Stal's revisions, likewise follows him in this course. I have 

 lately, through the kindness of Dr. Aurivillius, been allowed 

 to inspect a typical specimen of the Fabrician species, and 

 find it to be quite distinct from the P. contracta, Walk., and 

 that it is the species which I, relying on Stal's identification, 

 had described as P. cerea. 



The following appears to be the correct synonymy : 



Platypleura strumosa. (PI. II. fig. C.) 



Tettigonia strumosa, Fabr. Syst. Rhynnr. p. :)4, n . 7 (1830). 

 Cicada strumosa, Walk. List'llom. i. p. 120. n. 51 (1851). 



Platypleura Afzelii, StSl, Ofv. Vet.-Ak. Krh. 1854, p. 241. 

 Platypleura strumosa, StSl (part.), Hem. Afr. iv. p. 19. n. 12 (1866) ; 



Butl. (part.), Cist. Ent. i. p. 191. n. 33 (1874). 

 Platypleura area, Dist. Trans. Ent. Soc. 1881, p. 632. 



It is singular that all the specimens which I have been 

 able to examine are females, and consequently it is impossible 

 at present to describe the male opercula and tympana. 



