50 H. T. Atkinson—Notes on Indian Rhynchota, [No. 1, 
Head broad or very broad, sometimes somewhat narrower than the 
thorax ; sides of clypeus very often without a ridge ; thorax posteriorly 
roundly sinuated, without ridges or furnished only with an obsolete 
median ridge: scutellum very large, long: tegmina flat, ample or very 
ample, costa dilated ; costal membrane transversely veined or reticulated : 
last tibie spinose ; first joint of last tarsi short or shortish. Differs from 
Tropiduchina in having the thorax without discoidal ridges or only with 
a single rather obsolete one and the first joint of the last tarsi being 
short or shortish (Stal). 
Genus Ricanta, Germar, Stal. 
Mag. Ent. iii, p. 221 (1818) ; Stal, Hem. Afric. iv, p. 221 (1866): Fieber, Rev. 
Mag. Zool. (3 sér.) ii, p. 842 (1875). 
Germar formed this genus from Plata, Fabr., taking the Indian 
species R. hyalina, Fabr., as his type with the following description :— 
‘Head short, transverse: frons lower, subovate, margined on the sides: 
clypeus annexed to the apex of the frons, conical, subulate at the apex : 
labrum concealed; rostrum shorter than half the body: eyes globose, 
pedunculate above: ocelli inserted on the lower margins of the eyes: 
antenns distant from the eyes, short, first joint minute, cylindrical, 
second short, thicker at the apex, obliquely truncated, setigerous.’ This 
was subsequently reduced by the creation of several genera which Stal 
reviews, absorbing some, and making other sections or subgenera. 
Stal includes in Ricania his own genus Scolypopa (Berl. Ent. Zeitschr. 
ii, p. 325, 1859) and gives the following diagnosis of the genus :— 
Body very broad, not prominent before the eyes anteriorly trun- 
cate or obtusely rounded: vertex very broad, short; frons transverse or 
equally long and broad, very often keeled; sides of clypeus without a 
ridge: thorax slightly arched, very often furnished with a fine ridge in 
the middle: scutellum furnished with three ridges running through it 
and anteriorly on both sides with an abbreviated ridge: tegmina varying 
in form and size, very often triangular and very ample; basal tegula 
large or somewhat largish; two veins emitted from the base of the 
clavus united in the middle or behind the middle of the clavus: wings 
moderate or small, anal area furnished with a simple vein: feet moder- 
ate, simple; last tibies very often bispinose, very rarely trispinose. 
The principal divisions or subgenera are :— 
1. Pochazia, Am. and Serv. Hist. Nat. Ins. Hém. p. 528 (1843) ; 
which includes Ff. fasciata, Fabr., and various African and Indian species. 
2. Tarundia, Stal, Berlin Ent. Zeitschr. iii, p. 325 (1859) and 
Rio Jan. Hem. ii, p. 70 (1862); which includes several species from 
Africa and the Indian Archipelago. 
