184 
Annals of the Transvaal Museum 
in the genus Stauropus. All species known to me differ, however, from 
Stauropus , in having four spurs on the hind legs, having vein 10 of fore wing 
from beyond vein 7, having vein 8 of hind wing not touching the upper median, 
as it does in Stauropus for over half of cell, and in having rather long and 
upturned palpi. I only keep mediata Wlk. in Stauropus. A $ specimen of 
Desmeocraera interpellate in my collection has been identified by Prof. Auri- 
villius and the same distinguished entomologist drew my attention to the fact 
that atriguttata and calliope have to be placed in Desmeocraera on account of the 
four spurs on the hind legs. As the type of D. interpellatrix Wllgrn. is probably 
in the Stockholm Museum and the species is apparently well known to Prof. 
Aurivillius, I have no doubt that his identification is correct, though I cannot 
confirm this for certain on strength of the descrip’tion. It is true, that my three 
specimens agree well with the description, but the description is of course far 
from complete. The only difference of importance is, that the ground colour of 
my specimens is not grey, but greyish green ; seeing, however, that this green 
colour is not easily preserved, it is quite well possible that Wallengren’s 
specimens were rather faded. 
Desmeocraera hierax Dist. has to be taken out of this genus and has to come 
in the genus Pararethona as the wing venation and other structural characters 
show little direct relationship to Desmeocraera and why Distant has placed it 
there is a mystery to me. 
Key to the South African species: 
1 a. Ground colour of fore wing green or irrorated with green . . 2 
b. Ground colour of fore wing white, irrorated with grey or with brown, 
or ground colour greyish-green ...... 9 
2 a. Ground colour of fore wing malachite-green (xxxii), orbicular and 
reniform defined by narrow silvery white lines ; a fuscous sub-terminal 
patch between veins 5 and 6; some silvery white edging on sub- 
terminal, antemedial, medial and postmedial lines . calliope p. «i86 
b. Fore wing not malachite-green, but lighter ...... 3 
3 a. Sub-terminal line represented by a more or less irregular fine, often 
faint line ........... 5 
b. Sub-terminal line represented by spots between the veins only . . 4 
4 a. All markings on the fore wing somewhat diffused, sub-terminal spots 
most clearly defined of all; postmedial line very diffused; wing 
thickly irrorated with biscay-green (xvii) ; hind wing brownish 
atriguttata p. 186 
b . Markings on the fore wings sharply defined and edged with white, post- 
medial line well defined, narrow, black and very irregular; ground 
colour of fore wing pale olivine (xxxii) ; hind wing whitish thalassina p. 187 
5 a. Ground colour of fore wing water-green (xli), three diffused rounded 
spots, the smallest at lower angle, a larger one before this on lower 
median and one below lower median at before origin of vein 2 
tripuncta p. 189 
b. No diffused spots on fore wing as mentioned above; ground colour of 
fore wing water-green or slightly darker ...... 6 
6 a. All markings, except sub-terminal line, very diffused, almost absent; 
antemedial and postmedial lines indicated by some dark scales, 
mixed with yellow scales; indications of white-ringed orbicular 
and reniform ....... vernalis p. 186 
b. Markings more distinct; no yellow scales mixed with it 7 
7 a. Postmedial area irrorated with dark green scales; hind wing of $ 
whitish, veins beyond the sub-terminal line not streaked with 
black ........ interpellatrix p. 185 
