ACE/EIJSriE. 
133 
named species, they seem to be rather scarce. Two or three others 
have been brought from Kaffraria Proper, but it is not until Natal is 
reached that the genus is richly represented ; nine more species, mostly 
very numerous in individuals, inhabiting that region. Zululand and 
Delagoa Bay are equally rich, the latter being, moreover, the only 
known South- African locality for the remarkable A. Rahhaiw ; and the 
Eastern Transvaal contains a good many species. A. Caldarma^ Aglao- 
nice, Anemosa, and probably Barhcri^ are characteristic of the Tropical 
interior country, and only just enter South Africa proper. 
34. (1.) Acr^a Rabbaiae, Ward. 
Acrcea Rahhaica, Ward, Ent. M. Mag., x. p. 152 (1873). 
„ „ Oberthiir, Etudes d'Ent., iii. p. 25, pi. ii. f. i (1878). 
Exp. al., 2 in. 1-9 lin. 
Trans'parent^ almost colourless^ with a feiu fuscous markings ; neura- 
tion strongly defined, dark brown. Fore-wing : base narrowly suffused 
with fuscous ; near base, between median and submedian nervures, a 
more or less conspicuous fuscous spot, variable in size and shape ; 
rather before than beyond middle, a very irregular transverse sub- 
macular fuscous stripe, from costal to submedian nervure ; the upper 
part of this marking is broadest and occupies the outer extremity 
of discoidal cell, — it is immediately preceded by a small (usually con- 
tiguous) costal spot above the cell ; apical and hind-marginal border 
very faintly tinged with brownish, crossed by some just perceptible 
very pale-yellowish inter-nervular rays. Hincl-iuing : not so trans- 
parent as fore-wing, thinly covered with white scales, unspotted ; base 
narrowly suffused with fuscous ; a broad more or less even hind- 
marginal fuscous border, containing six or seven semi-transparent 
sagittate spots faintly tinged with ochreous-yellow ; of these spots, the 
first (next apex) is much the smallest and sometimes almost obsolete, 
— and the first and seventh (and occasionally also the second) are some- 
times joined to the ground-colour of the wing. Under side — Glossy, 
almost scale-less ; markings the same as on upper side, but fainter 
(except the fuscous markings of fore-wing, which are quite as dark). 
Palpi and thoracic spots pale creamy-yellow ; abdominal spots 
(more or less confluent posteriorly) creamy-whitish. 
M. Oberthtir (pi). cit., p. 25) notes that the hind-wings are white 
or yellow, and that the transverse band of the fore-wings is variable in 
development. The colouring of his figure is more ochreous than that 
of any of the Delagoa Bay specimens which I have seen ; and the 
transverse band of the fore-wings considerably narrower and more 
macular. 
This beautiful Acroea is very distinct from all the known South- African 
species ; its almost total want of colour and extreme transparency, together 
with the conspicuous central black bar across the fore-wings, rendering it very 
