Annals of the Transvaal Museum 
i59 
two short veinlets in the cell; 6 from about middle of areole, which is nearly 
as long as half vein 10; 7, 8, 9 stalked and from end of areole; 7 from stalk at 
-frd of whole stalk, which is as long as f distance end of areole to apex; free 
part of vein 10 from end of areole; 1 1 from upper median at frd, parallel to 12 ; 
12 parallel to costa. 
Hind wing sub-triangular; costa well curved; apex well rounded; termen 
oblique and well curved ; tornus rounded ; inner margin gently curved ; 1 a and b 
somewhat curved, long; 2 from lower median at fth; 3 from fth distance 2 to 4 ; 
4 from lower angle and curved; 5 from above f discocellulars which are 
somewhat oblique inwardly and have a forked veinlet in the cell; 6 and 7 on 
a stalk of frd 7 and from upper angle ; 8 curved upwards at base, then down- 
wards and approximated to upper median, then curved upwards; a bar to vein 
8 from just before middle of upper median. The hairs of the thorax have a 
tendency to produce a tuft, which is very long and thin in heterogyna and 
practically absent in albicostata; the abdomen has a brush of long hairs, which 
is however absent in albicostata. The description given by Holland is altogether 
insufficient to fix the genus and as the type of the genus is unknown to me, it 
may be that the characters given above do not apply to all species. 
Aurivillius in Arkiv for Zoologi also remarks, that Holland’s description 
is insufficient, and adds many useful characters which refer to fuscinota, all 
of which are found on the species I place in this genus. Hampson in A .M.N.H. 
8. v. p. 492 places Aurivillius’ species for certain in Scalmicauda, and in 
addition, gave me very useful information about the genus, also mentioning 
the hairy eyes, so that I have no doubt that my species are rightly placed here. 
It is to be regretted, that generic descriptions are sometimes incomplete 
to such an extent, that it is impossible to recognise the genus with any certainty 
if the actual type species is not at hand. The original description should, I 
think, mention every character more or less readily observable and of dis- 
tinctive value. This not only applies to genera but also to species. 
The genus seems to be confined to Africa ; three species have been described 
from South Africa to which I add a fourth. 
They may be tabulated as follows : 
la. A long, narrow thoracic tuft of hairs .... heterogyna 
b. No thoracic tuft at all, or if present not long and narrow ... 2 
2 a. White points at the angle of cell of fore wing; a black point in cell near 
base; white points at base of cilia .... griseitincta 
b. No white points on fore wing and no black point in cell near base . 3 
3 a. Costa narrowly white, fore wing maroon-red, no orbicular, reniform or 
macula below lower median ; hind wing in both sexes white ; antennae 
of bipectinated for frd ..... albicostata 
b. Costa of fore wing in $ broadly white, in $ this white is reduced to a 
triangular macula at end of post median line; a brown round 
orbicular, reniform and round macula below lower median and 
before vein 2; cilia tipped with white; antennae of $ bi-serrate for 
frd ........... o’neili. 
Scalmicauda Heterogyna. 
(PL I, fig. 2.) 
Scalmicauda heterogyna Hmpsn. A. M.N.H. 8. v. p. 490 (1910). 
I have a $ and a and have seen another $ which is in Mr Clark’s collection, 
•all in rather broken condition, but distinctly marked. They differ from the 
description in a few points: the brown rings around the orbicular and reniform 
