FAM. CICADID/E 



i3 



moderate in size; opercula short and broad, their apices more or less convexly rounded; rostrum 

 reaching the posterior coxaa; tegmina with the costal membrane much arched at base and dilated, about 

 as broad or broader than the costal area, basal cell short and broad, ulnar veins widely separated at 

 their bases. 



Type. — Y. hova, Distant. 



Geographical distribution of species. — Eastern Ethiopian Region. 



A. Tegmina and wings opaque. 



a. Wings piceous or piceous-brown. 



i. Y. antiopa. Madagascar. 



Platypleura antiopa, Karsch, Berl. Ent. Zeitschr. Vol. 35, p. 88, t. 3, f. 2 

 (1S90). 



2. Y. andriana. Madagascar. 



Platypleura andriana, Distant, Trans. Ent.Soc. Lond. p. 476, t. 16, f. 2 (1899). 



3. Y. pembana. Pemba Island. 



Platypleura pembana, Distant. Trans. Ent. Soc. Lond. (1899), p. 477. 



4. Y. seychellensis, nov spec. 1). 



b. Wings ochraceous, more or less shaded with piceous-brown. 



5. Y . guttulata. Madagascar, Nossi Be, 



Platyplmra guttulata, Signoret, Ann. Soc. Ent. Fr. (3), Vol. S, p. 17S, t. 4, 

 f. 1 1 1860 1. 



6. Y. grand id ieri. Madagascar. 



Yauga grandidieri. Distant, Trans. Ent. Soc. Lond. (igo5), p. ig5. t. 11, 

 f. 3a. * 



7. Y . bouvieri. Madagascar. 



Yauga bouvieri, Distant, Trans. Ent. Soc. Lond. (1905), p. 194, t. 11, 

 f. 2a. b. 

 S. Y . handlirschi. Madagascar. 



Pcecilopsaltria Handlirschi, Distant, Ann. Mag. Nat. Hist. 1 6), Vol. 19, p. 282 

 (1897). 



c. Wings piceous. with their margins white. 



9. J". Iieathi. 



Platypleura Heathi, Distant. Trans. Ent. Soc. Lond. (1S99), p. 475, t. 16. 

 f. 1. 



Madagascar. 



d. Wings piceous, their apical areas more or less white. 



10. Y . hova. Madagascar. 



Pa'cilopsaltria hova. Distant, Trans. Ent. Soc. Lond. (1901 ), p. 591, t. 16, f. 2. 



1) Yanga seychellensis, nov. spec. — <jf. Head pronotum and mesonotum obscure ochraceous or brownish-ocliraeeous; head with 

 lateral lines to front and a transverse spot above the insertion of antennae, vertex with the area 01 the ocelli, a slightly curved transverse spot before eyes, 

 four basal spots (those near the eyes largest), pronotum with the anterior margin, the fissures and two small central spots before base, mesonotum with two 

 obconical spots on anterior margin, a larger spot on each side, and a rounded spot near each anterior angle of the basal cruciform elevation, black; abdo- 

 men above black, somewhat thickly greyishly pilose, the head and thorax more sparingly pilose; face ochraceous, clypeus and cheeks black, thickly 

 grt yisbly pilose ; sternum and legs ochraceous ; abdomen piceous, greyishly pilose ; tegmina pale obscure olivaceous, the veins ochraceous, all the cellular 

 areas more or less streaked or suffused wish black or piceous, the whole area greyishly pdose, but from about base to middle the pile, especialy near the 

 veins is long and white, the basal half thus contrasting in colour with the apical half; wings black, the veins testaceous-red, the posterior membrane trans- 

 versely paler near anal angle ; costal membrane of tegmina prominently arched at base and dilated, about as wide or a little wider than costal area: head 

 fiontally produced, not truncate, almost as long as pronotum; face transversely striate; rostrum slightly passing the posterior coxa?; opercula short 

 outwardly and posteriorly convex, slightly overlapping between the posterior coxae, posterior tibiae with three spines on inner and two spines on outer 

 margins. 



Q . The basal whitish area to the tegmina a little less pronounced than in the o\ but in both sexes on the under surface of the tegmina, the 

 whitish area above is replaced by testaceous-red beneath. 



Ix>ng. excl. tegm. cr» 24 millim. ; Q, 27 millim. Exp. tegm. d\ 84 millim. ; Q, q2 millim, 



Hab. Seychelles Islds. ; Mahe (Brit. Mus.l. 



Allied to V. pembana, Dist. 



