Publ. 12. IX. 1934. 
THALATHA; ORANIOPHORA; ACRONIOTA. By M. Oaede. 
31 
2. Genus: Tlialatlia WIcr. 
Proboscis and palpi normal. Frons with a small hum]), d’horax tnftless, the abdomeo with l)nt one 
t)ift at the base. Neuration normal. Type: sinens Wkr. from Imlia, China. 
1. Antennae of with one row of serrations. 
Th. malagassica Hmps. (5 a). Thorax red-brown. Forewing pale reddish-yellow, with a faded blackish muludaHnU-.d. 
band in the submedian fold. Interior and exterior lines of black spots, the former reddish-yellow at the inner- 
margin. Ring-macula and reniform macrda large, white; the former oblong, the latter with a reddish-yellow 
centre, blackish between them. Besides darker reddish-yellow from the middle of the costal margin to vein 2. 
The reddish-yellow submarginal line with a black s])ot before the middle of the distal margin. Abdomen wliitish- 
ochreous, hindwing yellowish, d' 40 mm. Madagascar. 
Th. waterloti Boursin (5a). Somewhat similar to tnalagassica, but the antennae of the d' ^.re filiform, waterloli. 
Thorax greyish-black, abdomen greyish-brown. Forewing grey. A grey basal ray in the submedian fold, inter¬ 
rupted for some distance in the middle, then extending to the margin. Interior line rather inconspicuous. A 
median shadow is present, the median area light grey. Ring-macula white, edged with black. A blackish oblique 
band behind it. Reniform macula well visible, grey. Exterior line black, far excurved, broadly edged with 
white inside. Submarginal line present. Darker at the margin between veins 4 and ti, as well as at the ai)ex. 
Hindwing greyish-brown, somewhat darker at the margin, d' 40 mm. Aladagascar. 
Th. occidens Hmps. Thorax reddish-yellow. Forewing lighter reddish-yellow. A dark basal ray is occidens. 
edged with white above, only as far as the interior line. Interior and exterior lines white, edged with black 
scales. Ring-macula and reniform macula white, centred and edged with reddish ochreous; a square brown 
spot between them. Exterior line formed of dentate spots. A light submarginal line as far as vein 3, very in¬ 
distinct. Black marginal dots inside with white lunae, fringe speckled. Hindwing light brownish ochreous. 
34 mm. Niger District. 
Th. varicolor Warr. (5 a). Greyish-browm, with a slight green reflection, more distinctly marked. In- varicolor. 
terior and exterior lines similarly shaped, but not white. A short black basal ray below the cell. Coniform macula 
large, fine black; ring-macula somewhat oblong; reniform macula large, grey, nut-brown inside, edged with 
black. A nut-brown stripe in the distal area. Hindwing white inside, brown outside. $ 34 mm. Cape Colony. 
2. Antennae of foliated. 
Th. melanostrota Poult. (5 a) is quite different. Thorax and forewing greyish-brown, dusted black, melano- 
with indistinct oblique dark lines and black marginal dots. Hindwing white, brownish at the margin. 24 mm. stwta. 
Somali Land. 
3. Genus: Craiiiopliora Snell. 
Proboscis normal, palj)i extending to the frons. Antennae of ^ and $ foliated. Metathorax with a 
parted tuft. Abdomen with small dorsal tufts. Neuration normal. Vein 5 of hindwing below the centre of 
the cross-vein. Type: ligustri Schiff. from Europe. 
Cr. paragrapha Fldr. (5 a). Forewing greyish-white, dusted brown more or less, with a black, broadly para- 
interrupted basal ray, with a spot behind it. Ring-macida and reniform macula edged with black, centred graph 
dark. Between them a broad dark median band, very light behind the reniform maoda. Two or three black 
spots behind the notched submarginal line. Hindwing brown, fringe speckled. — inversa Gaede (5 b) has the invcrsa. 
reniform macida filled with wood-brown, the whole distal area beginning from the median band is very dark. 
40—^44 mm. Cape Colony, [inversa) East Africa. 
Cr. adelphica E. Prout resembles paragrapha in which the black horizontal streak of the forewing is adelphica. 
more interrupted towards the margin. The median shadow is much more distinct in adelphica. Hindwing some¬ 
what darker. —■ E 40 mm. San Thome. 
4. Genus: Aerouicta Ochs. 
Differs from Craniophora only in the absence of the small dorsal tufts, for which reason Craniophora 
is united with Acronicta in Vol. III. Type: leporina L. froni Europe. Only 3 of the immense mimber of species 
of this genus occur in Africa. 
Acr. transvaalica Hmps. Body brovvuiish-white, forewing greyish-white. A strong black streak below trans- 
the cell as far as the interior line, with a lateral spur in the middle below. Interior line black, double, obliquely 
outward. Ring-macula and reniform niaoila edged with black, the latter rusty brown inside. The feeble median 
line is slightly angled inwardly at vein 1. Exterior line double, dentate, excurved as far as vein 4, then sharply 
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