FAM. MEMBRACIDiE 199 



189. GENUS PLATYBELUS Stal 



Platybelus Stal, Hem. Afi. IV : 96 (1866). 



Characteps : The insects of this genus are distinguished by their strongly oblique robust 

 suprahumeral horns and slender, sinuate, acuminate posterior process which does not touch the 

 scutellum. Head subquadrate, wider than high, usually pubescent; base strongly arcuate andsinuate; 

 eyes ovate; oceUi not conspicuous, equidistant from each other and from the eyes and situated above a 

 hne drawn through centers of eyes ; inferior margins of genae sloping downward and feebly sinuate; 

 clypeus extending for half its length below inferior margins of genae, tip pointed. Pronotum convex 

 with long suprahumerals; metopidium vertical, wider than high; median carina strongly percurrent; 

 humeral angles large, triangular and blunt; suprahumeral horns long, triquerate, sharp, extending 

 outward and upward, much longer than the distance between their bases; posterior process long, sinuate, 

 tectiform, acuminate, tip reaching a point well beyond the internal angles of the tegmina and usually 

 beyond the end of the abdomen ; scutellum well exposed on each side. Tegmina hyaUne ; base narrowly 

 coriaceous and punctate ; veins strong; five apical and three discoidal cells; tip pointed; apical hmbus 

 broad. Hind wings with three apical cells. Legs simple ; femora cylindrical; tibiae triquerate; hind 

 tarsi longest. 



Typejlaviis 5ignoret. 



Geographical distribution : This is an African genus with one (doubtful) species from southern 

 Asia. 



1. africanus Distant, Rhynch. Notes SaS (1916). Cameroons,Uganda, Buamba, 



SemliU, Budongo, Unyoro. 



2. albescens Funkhouser, Ann. Mus. Acad. U.S.S.R. XXVIII : 146 Zanzibar. 



(1927). 



3. aries Jacobi, Kil. Exp. XII : 7. iii (1910). KiUmandjaro. 



4. brmiieus Funkhouser, Journ. N. Y. Ent. Soc. XLII : 3. 33^ (1934). Transvaal, Natal. 



5. dschagga Jacobi, Kil. Exp. XII : 7. 122 (1910). KiUmandjaro. 



6. escaleranus Distant, Rhynch. Notes 324 (1916). Cameroons. 



7. flavns Signoret, Thoms. Arch. Ent. II : 33^. 646 (i858). Calabar. 



varipennis Distant, Rhynch. Notes 326 (1916). 



8. gowdeyi Distant, Rhynch. Notes 3^5 (1916). Uganda, Mabira. 



9. insignis Distant, Rhynch. Notes 3^6 (1916). Nyassaland. 



10. luteus Funkhouser, Journ. N. Y. Ent. Soc. XXII : 3. 2^9 (1914). Banguay. 



11. macrocerus Pelaez, Bol. Soc. Espanola XXXVI : 194 (1936). Abyssinia. 



12. projectus Funkhouser, Rev. Suisse de Zool. 43 : 2. 193 (1936). South Africa. 

 i3. s!KZ(os».s Distant, Rhynch. Notes i55 (1916). — Pl, 1 0, fig. 164. Nyassaland. 



190. GENUS EVANCHON GODING 



Evanchon Cioding, Journ. N. Y. Ent. Soc. XXXVIII : 40 (i93o). 



Characters : This is a genus characterized by the horizontal suprahumerals and the very 

 strongly sinuate posterior process which is elevated above the scuteUum. Head subquadiate, a Uttle 



