belonging to the Homopterous family Cicadide. 681 
margins of pronotum widely and acutely dilated; the 
anterior margins rounded, the posterior more acute; 
rostrum reaching posterior coxe ; face globose, strongly 
and transversely striate, and deeply and longitudinally 
sulcated. Long. 28mm. Exp. tegm. 83 mm. 
Hab. East Africa, near Zanzibar. 
Allied to P. quadraticollis, Butl., from which it at once 
differs by the semi-opaque tegmina and wings. The 
tegmina and wings in pattern have considerable affinity 
to P. subrufa, Walk., an Indian species. 
Platypleura inquinata, n. s. 
?. Body castaneous ; mesonotum dark castaneous. 
Head with the frontal margin, a spot above insertion of 
antenne, area of ocelli, a transverse fascia on inner 
side of anterior margin of eyes, and two small longi- 
tudinal fasciz at base between ocelli and eyes, black. 
Pronotum with two transverse fascize, commencing behind 
eyes and carried obliquely to disk, where they are 
thickened, but do not meet; between these and inner 
sides of lateral margins two other straight oblique fascie, 
inner border of dilated lateral margins, and a somewhat 
indistinct central quadrate spot on inner side of 
posterior margin, black. Mesonotum with two obscure 
obconical spots at base, and some other indistinct mark- 
ings, black. Anterior dorsal segmental margins fuscous ; 
anal appendage above black. Anterior margin of face, 
a spot on coxe and trochanters, apices of femora, tibi 
(excepting base), tarsi, and apex of rostrum, fuscous. 
Tegmina creamy, opaque, irregularly spotted and shaded 
with fuscous, with irregular hyaline spots, of which the 
following are the most conspicuous: one near the end of 
radial area, two occupying the centres of the two upper 
ulnar areas, one a little before centre of third ulnar 
area, a smaller one near apex of fourth ulnar area, an 
irregular elongate series (mostly confluent) on apical 
areas, which are largest on the sixth area, and absent 
on the seventh, and a large elongate spot on outer 
margin at end of clavus; veins castaneous; costal 
membrane and area fuscous. Wings ochraceous ; apical 
third castaneous, basal third much suffused with 
castaneous, anal margin pale fuscous, outer margin 
creamy, hyaline near anal margin, and castaneous at 
