Annals of the Transvaal Museum 
167 
formed somewhat like the postmedian. ; median discernible from cell-spot 
to hind margin, parallel with postmedian ; postmedian falling nearly 
perpendicularly from costa just proximally to two-thirds, thick and 
somewhat indented (and followed distallv by a slightly pale space) between 
costa and R 3 , afterwards finer and indistinct, forming a point distad between 
R 3 and M 1 , then running to posterior margin staircase-wise, being bent 
alternately inwards and outwards, the inward angles placed on M 2 and 
SM 2 , the outward on the fold ; subterminal line whitish, dentate from 
costa to R 3 , more irregular (and in parts indistinct) behind, but with a 
purer white spot between R 3 and M 1 and a second behind M 2 ; terminal 
line black, rather thick, interrupted at the vein -ends ; fringe greyish, 
weakly dark-spotted opposite the veins, a pale yellow-grey line at its base. 
Hindwing whitish, the inner margin and distal margin to a width of 1 mm. 
con color ous with forewing ; cell-mark as on forewing ; postmedian line 
(continuing the median of forewing) running perpendicularly from costa 
to R 3 , rather thick but shadowy, only darkened into dashes on the veins, 
nearly parallel with termen posteriorly but incurved in submedian area ; 
the pale band which follows very feebly bisected by a grey line ; sub- 
terminal and terminal lines and fringe as on forewing. Forewing beneath 
paler, becoming white posteriorly ; costal spots, cell-mark and costal half 
of postmedian line nearly as above, terminal area somewhat darkened 
except at tornus, the subterminal therefore indicated through most of its 
course. Hindwing beneath nearly as above, postmedian line rather stronger, 
subterminal line thicker and more ill-defined, diffused nearly to termen in 
torual half. 
Pretoria, 13th December, 1909. Barberton, 4th January, 1911 (A. J. T. 
Janse), kindly presented to my collection. A worn $ from White River, 
May, 1908 (A. T. Cooke), probably also belongs here ; antennal cilia tion 
minute. The Barberton specimen is a little darker than the type, but 
not in quite such perfect condition. 
Eupithecia rubidimixta , n. sp. (PI. XXV, Fig. 23). 
$, 21-22 mm. Related to the preceding, possibly even a remarkable 
local form of it, differing as follows : termen of hindwing slightly more 
inclining to crenulate, between the radials straight or feebly subconcave ; 
both wings with a strong reddish admixture, especially along the posterior 
margin and in distal area, on the forewing prominently, also in the pale 
parts which (more than in gradatilinea) bound the median area ; a reddish 
patch between the radials posterior to the median band in particular 
noticeable ; the dark colouring intensified, especially in the median area 
of the forewing, a distinct dark bar (narrow band) present between the 
basal and median areas which is scarcely at all suggested in the type 
specimen of gradatilinea , but is traceable (though not conspicuous) in the 
Barberton example ; cell-spots thickened ; sub terminal line mostly weaker, 
but with the white dots (especially that behind M 2 ) more prominent. The 
under surface is quite alike in both forms, except for the larger cell-spots, 
and gives, with the form of the postmedian line of the upper surface, the 
chief clue to the possible specific identity. 
Waterval Onder, 22nd to 25th November, 1910 (A. J. T. Janse), the 
latter (cotype) in coll. L. B. Prout. 
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