200 
Annals of the Transvaal Museum. 
The type specimen is of a dark grey colour, the broad subterminal 
line therefore showing up very strongly, as in dark specimens of margine- 
punctata, fibulata, etc. ; but a second $, from Nairowa, British East Africa,, 
in coll. British Museum, is brown, so that the colour is evidently variable, 
and it is not absolutely impossible, though very unlikely, that sagittilinea 
Warr. (Novit. Zool., iv, 219) from Mombasa Island is yet another colour- 
form of the same species, in spite of several differences indicated by Warren. 
Ptychopoda sinuilinea, n. sp. (PI. XII, Fig. 17). 
$, 19 mm. Face blackish. Palpus reaching somewhat beyond frons, 
blackish, bage pale. Vertex and base of antenna pale ochreous, antenna 
distally darker. Occiput red-brown. Thorax and abdomen pale reddish 
brown, dorsally irrorated with darker. 
Forewing pale ochreous brown, irrorated and lined with dark red- 
brown ; first line oblique outwards from costa at one-fourth, acutely angled 
in cell, thence rather thick and lunulate to posterior margin at nearly 
one- third ; median line from a thick black spot on costa at nearly one-half, 
preceding the discal spot, slightly irregular, with a marked sinus inwards 
in submedian area, thence approximated to inner line ; postmedian line 
from about three-fourths costa, inangled near costa and between radials, 
and sinuate inwards from M 1 nearly to SM 2 , this sinus showing slight teeth 
proximal on M 2 and fold ; subterminal line pale, strongly lunulate-dentate 
and somewhat zigzag, indistinct in places, distinct between R 3 and M 2 , 
where it encloses two large dark grey spots ; cell-spot black, slightly 
elongate, terminal line fine, black, interrupted at veins ; fringe very 
narrowly pale at base, its proximal half otherwise with large blackish spots 
opposite the veins. Hindwing similar, without first line, subterminal not 
enclosing conspicuous spots between R 3 and M 2 . Underside without the 
dark irr oration ; markings weak, limited on both wings to an indistinct 
discal spot and postmedian line and faint terminal shade. 
Waterberg District, 1898—99 (v. Jutrzencka). Type in coll. L. B. 
Prout ; cotype in Transvaal Museum. 
Somewhat rounder-winged and rather less rufous in tone than Sterrha 
irrufata Warr. (Novit. Zool., xii, 391), and not infuscated beneath ; median 
line nearer base, outward curves in postmedian more regular ; vertex 
slightly paler. Otherwise very suggestive of that species — which, however, 
so far as we yet know, is unique in its group in the possession of a pair of 
hindtibial spurs in the (J. 
Ptychopoda consericeata, n. sp. (PI. XII, Fig. 9). 
$, 18 mm. Face and palpus black, the latter pale beneath. Vertex 
and base of antenna white ; occiput grey. Thorax, abdomen, and legs 
concolorous with wings, forefemur blackish on inner side. 
Wings smooth-scaled, silky, as in subsericeata Haw., and straminata Tr., 
between which it stands in colour ; cream- colour sprinkled with grey, 
lines grey. Forewing with very faint antemedian line ; a black discal 
spot, followed immediately by diffuse median shade parallel with termen ; 
postmedian line at nearly three-fourths, weak, waved, rather nearer termen 
at posterior margin than at anterior ; the lines or shades on either side 
