42 
Annals of the Transvaal Museum 
triangular blackish spot on costa at §, and in $ a small blackish mark from 
tornus opposite, connected with it by a faint ochreous line (in $ not indicated) ; 
a minute black apical dot: cilia whitish, on costa white with dark fuscous 
antemedian line obliquely projecting at apex and very fine indistinct fuscous 
basal line towards origin of cilia. Hindwings grey; cilia grey- whitish, with 
faint rosy tinge. 
Natal, Umkomaas, in January (Janse); two specimens. 
Opostega idiocoma n.sp. 
$ 5-6 mm. Head, palpi, eyecaps, and thorax white, frontal tuft varying 
from yellow-ochreous to dark fuscous. Abdomen whitish-ochreous to grey. 
Forewings lanceolate, apex produced, acute; shining white; an oblique wedge- 
shaped or triangular blackish spot on middle of costa; sometimes a small 
blackish dot on dorsum anterior to this; a rather oblique slender brownish 
line before apex, extended into costal cilia; a minute black apical dot: cilia 
whitish. Hindwings varying from grey to grey- whitish ; cilia whitish. 
Natal, Umkomaas, in January (Janse); four specimens. 
Bucculatrix praecipua n.sp. 
<$ 7 mm. Head and thorax white. Abdomen whitish. Forewings lanceolate, 
apex produced, acute; white; markings pale ochreous, finely speckled with 
fuscous; a faint dot on fold at J; an oblique streak from costa before middle, 
not reaching half across wing; a spot on dorsum before tornus; an oblique 
streak from costa beyond middle to termen above tornus, its posterior edge 
marked with a small black dot below middle; a spot crossing wing before 
apex, and a dot at apex : cilia whitish, with a few black specks. Hindwings 
and cilia whitish. 
Zululand, Eshowe, in January (Janse); one specimen. 
Oxymachaeris Wals. 
Head wholfy rough-haired; ocelli small, inferior; tongue rudimentary. 
Antennae f , basal joint moderate, dilated and rough-scaled above. Labial 
palpi moderate, slender, porrected, second joint with an apical external 
bristle, terminal joint slightly longer than second,' pointed. Maxillary palpi 
moderate, filiform, folded. Posterior tibiae clothed with fine hairs. Forewings 
with apex somewhat upturned ; 1 b simple, cell only reaching middle of wing, 
2 and 3 stalked, 4 absent, 5 and 6 long-stalked, 7 absent, 9 absent, 8 and 10 
long, 11 absent. Hindwings f, lanceolate, acute, cilia 2; 2 and 3 stalked, 
4 absent, cell open between 3 and 5, 5 and 6 stalked, 6 to termen, 7 approxi- 
mated to stalk of 5 and 6 at base. 
There can be no question that the following insect is at least congeneric 
with Oxymachaeris niveocervina Wals., but the highly remarkable neuration 
differs very considerably, if Lord Walsingham’s description and figure are 
correct; in regard to this it may be supposed that the peculiar (quite abnormal) 
breadth indicated in both wings in the figure of neuration is erroneous, since 
the proportions in the coloured figure are widely different; probably the 
neuration described and figured is also unreliable. I have therefore here 
given the generic characters of the following species in full; they are very 
curious, but seem to show that the genus is a highly specialised form of the 
Erechthiad group of the Lyonetiadae. 
