Annals of the Transvaal Museum 185 
b. Postmedial area not much darker than ground colour; hind wing of $ 
thickly irrorated with brown; black streaks beyond sub-terminal 
line as far as termen ......... 8 
8 a. Hind wing with white streaks on the cilia; a distinct black irroration 
in middle of postmedial area, edged on the inner side by yellowish- 
green, on outer side by white, below vein 4 connected with a black 
patch to sub-terminal line and below vein 2 with a black streak 
towards base, which is interrupted by green at antemedial area 
platti p. 190 
b. Cilia of hind wings not interrupted by white streaks; no distinct 
irroration beyond postmedial line, though in the $ there is an 
indication of it ; there is, however, no dark patch below vein 4 ; often 
there is a continuous or interrupted black streak, broad or narrow, 
below lower median from base to postmedial line; hind wing with 
postmedial line distinctly indicated near costa by two black streaks 
as far as vein 6 ....... varia p. 187 
9 a. Sub-basal line obliquely outwards towards costa .... 10 
b. Sub-basal line obliquely outwards towards inner margin . . . 11 
c. No sub-basal line at all ....... incana p. 189 
10 a. Ground colour of fore wing thickly irrorated with drab (xlvi) ; some 
yellow hairs at ante- and postmedial lines ; hind wing irrorated with 
brown ......... vernalis p. 186 
b. Ground colour of fore wing light mouse-grey (li) ; hind wing pure 
white except at costa near apex .... canescens p. 188 
11 a. Sub-basal area rather dark, well defined by a double black line; cilia 
greyish; pecten of antennae in over 3 times shaft basalis p. 186 
b. No black lines defining sub-basal area, which is of ground colour, but 
defined by a single brown line; cilia of hind wing almost white; 
pectination of antennae in $ short, about two times shaft . . 12 
12 a. Antemedial line nearly straight; postmedial line somewhat incurved 
at lower angle of cell, beyond which it just passes steniptera p. 191 
b. Antemedial line angled outwards in cell, inwards at submedian fold; 
postmedial line curved outwards beyond vein 3, passing a good 
distance beyond discocellulars .... pergrisea p. 191 
Desmeocraera Interpellatrix. 
(PI. I, fig. 21; PI. IV, figs. 1-3.) 
Stauropus interpellatrix Wllgrn. Wien. Ent. Monats. iv. p. 164 (i860). 
Desmeocraera interpellatrix Wllgrn. Kongl. Vet. Akad. Handl. 2. Bd. v. No. 4, 
p. 52 (1865). 
I have two <^s of this species in my collection, one from White River (Aug. 
1909), and one from Krantzkloof (Aug. 1916); and one $ from Eshowe (Zulu- 
land) (Jan. 1916). One $ in Transvaal Museum from Durban (Febr. 1908). 
As remarked in my notes on the genus, my specimens are not grey, but 
tinged with olivine (xxxii) green; however, for reasons given above, I have 
little doubt as to the correctness of the identification, as moreover, the species 
is very distinct from any of the other species known to me. 
The third joint of the palpus of this species is very minute and only visible 
between the hairs at high magnification. 
