80 
STERRHA. By L. B. Peout. 
purpKras- 
ccns. 
suhlimharia 
'prKchnlo- 
)na. 
flamingo. 
tornivcslis. 
amputaia. 
rnfimixla. 
rufifascia. 
dcplcticosta. 
mnbricosta. 
pundigcra. 
onwscofia. 
arnhiscrlp- 
ta. 
irissose'))iia. 
aperta. 
fylluklarla. 
huchanani. 
S. purpurascens Prout (8 k) is a pretty, broad-winged species, quite unlike any other yet kno'UTi from 
Africa. Natal: Umkomaas (loc. typ.). Also taken at Makulane, S. Mozambique. 
S. sublimbaria Warr. (7 1). Known by its curiously irregular and broken lines, dark costal marks 
and very heavy terminal line. Antennal ciliation of the rather long. Only known from Natal and 
Pondoland. 
S. prucholonta Prout is smaller, the antennal ciliation rather short, the hindv/ing somewhat more 
rounded, the lines more normal, but very weak, the borders purple-brown rather than blackish and with 
stronger proximal projections. Plganda (type), Congo and Gold Coast, evidently hitherto much overlooked. 
S. flamingo Warr. (8 k). Recognizable by the arched costa and highly oblique, slightly sinuous 
distal margin of the forewing, which thus approaches that of an Indian group typified by acuminata Moore-, 
the hindwing, however, is rather narrow and not bent at the 3rd radial. Luacinga River, Angola, described 
from 2 since taken at Salisbury, Rhodesia. 
S. tornivestis Prout (7 1). At least as long-winged as flamingo, but with the distal margins not sinuous. 
Pale, not reddish, the postmedian line pretty direct but slight, subterminal shades strong, in the $ (here 
figured) more or less suffusing with the postmedian to form a broad dark border, cj hind wing at anal angle 
and distal part of abdominal margin clothed with long coarse specialised scaling which projects somewhat 
beneath. Nairobi, the type and others. Also 1 $ from Mount Mlanje, 2300 feet. 
S. amputata Warr. (7 1), on which Warren founded a genus Cacorista, has the $ rather similar to 
that of tornivestis but smaller, more warmly coloured, with the distal band of the forewing strong, more 
removed from the margin anteriorly. The (J, here figured, has the hindmargin of the forewing somewhat pro¬ 
duced into a short, rounded flap, to cover a specialised area of the hindwing which — together with the 
corresponding part of the forewing beneath — is clothed with coarse ochreous scaling. Hindleg of S weak, 
with very short tarsus. Distributed in W. Africa from Senegal and across Uganda to E. Africa, originally 
described from Unyoro. The specific identity of the two forms was proved by the late A. Bacot, who bred 
them together from one batch of eggs. -- rufimixta Warr. is almost certainly a more unicolorous aberration 
of amputata, though the specialised sex-scaling is less evident. 1 d* from Ogruga, Niger. - rufifascia Prout, 
from Natal, shows better developed red or purplish lines on the ^ forewing, the postmedian band-like. 
Similar forms occur on Madagascar (see our note on limhoJata). 
S. umbricosta is variable, but easily distinguished by its extreme shape, strong silky gloss and 
especially by the loss of the areole, which leaves the 5 subcostals of the forewing stalked together. — 
depleticosta Prout (— minimaria Swinli., err. det.), from Kenya Colony, is a small form with the costal 
margin not, or scarcely, differentiated in colour, the fringe with rather strong dark dots at base. I cannot 
yet separate the race from Madagascar, except that the costal margin sometimes shows signs of darkening. 
— umbricosta Prout (7 1). Vertex whiter; costal margin of forewing red-brown, shaded, especially in proximal 
half, with fuscous. Transvaal (loc. t>qr.) and Cape Colony. - - ab. punctigera Prout from Pretoria is very 
distinct in the presence of large black cell-dots. Possibly a separate species. - - f. omoscotia Prout, from 
Pretoria North, is another rather puzzling form or very close ally, the hindwing apparently a ti’ifle broader, 
cell-dots present but minute, costal margin not reddened, but with a mixture of lustrous leaden-grey and 
fuscous scales at base; lines well expressed on underside. — f. ambiscripta Prout, taken together with the 
preceding, has strongly expressed lines above as well as beneath. 
S. trissosemia Prout. 15 mm. Venation as in umbricosta, shape more normal. Whitish grey, clouded 
almost throughout with chocolate; cell-dots strong, especially on hindwing; forewing in addition with 
2 black costal spots, from which arise the weak ante- and postmedian lines; median line reddish, fine and 
sinuous; fringe long, proximally reddish with distinct black dots. Umbilo, 1 $ in coll. Janse. 
S. aperta Prout (8 k). Venation as in the two preceding. Tongue slight. Antennal ciliation of ^ 
scarcely longer than diameter of shaft. The markings are shown by our figure; the coarse dark irroration 
is mainly longitudinal in direction. British Somaliland, 1 
S. fylloidaria Swinh. (7 1). Venation normal; tongue short and weak. The wing-shape, coloration, 
form of the post-median and strongly marked underside are characteristic; x'ostmedian strongly oblique 
from hindmargin to 1st radial, then very acutely angled and running very oblicxuely inward, here very 
weak, but marked on the forewing by a dark costal spot. Kenya Colony. 
S. buchanani Profit. Smaller (14 mm), ajiex of forewing and distal margins somewhat more rounded. 
Paler grey-brown, not reddish; j^ostmedian line much weaker, about ^mrallel with termen, thus more ju-oxim- 
ally jdaced at the angle on 1st radial, which is less extremely acute; subterminal band stronger, aj^xiroxim- 
ately parallel with termen; hindwing less contrasted in colour x^roximally and distally of the postmedian 
line. Makochia, Damagarim, the ty])e. Two rather larger and less narrow-winged $$ from Stklhiou (Sene- 
