50 Lord Walsingham on Western 
indented above vein 5. Neuration, 12 veins, all separate ; 2 from 
commencement of outer third of cell, 3 and 4 somewhat straight, 8 
totermen. J//indwings broader than the forewings (or at least equal 
te the extreme width outwardly), evenly rounded. Neuration, 8 
veins; Sand 4 from a point or short stalk, 6 and 7 from a short 
stalk, 8 free, 5 straight ; outer edge of cell somewhat receding 
upwards. Legs, hind tibie slightly hairy. 
Allied to Hilarographu, Z., but differing in vein 8 of 
the forewings running to the termen instead of to the 
costa, in the much straighter costa and in the conspicuous 
indentation between veins 5 and 6, 
Tliothauma africanum, sp.n. (Pl. IL., fig. 9.) 
Antenne ochreous with greyish cilia. Palpi pale straw-colour. 
Head brownish fuscous, with some pale straw-coloured scales. 
Thorac brownish fuscoas, streaked at the sides with pale straw- 
colour. Forewings reddish orange, streaked with brownish fuscous, 
dark fuscous, pale straw-colour and metallic lilac ; the ground- 
colour of the basal third is brownish fuscous, in which are two con- 
spicuous pale straw-coloured marks, the one from the middle of the 
base depressed along the fold, thence tending upwards and attenu- 
ated to a sharp point below the costa at about one-third the wing 
length ; the second at one-third of the dorsum, cuneiform, oblique, 
and ending in a point at about the middle of the discal cell 
immediately beyond the apex of the basal streak already described ; 
separated from the outer edge of this mark, by a narrow line of 
brownish fuscous, is a rather narrow band of shining cupreous 
scales illuminating the orange ground-colour of this portion of the 
wing, this is entirely narrowly margined with brownish fuscous, its 
upper extremity being above the middle of the wing, but not 
reaching to the upper edge of the discal cell, and therefore ter- 
minating before the apex of the pale straw-coloured wedge; a 
dark fuscous shade leaves the dorsum at two-thirds from the base, 
tending outwards to the end of the cell above its middle, its upper 
portion contains a short orange streak and its extremity is con- 
tiguous with a shade of a similar colour which approaches the 
lower half of the termen extending to the tornus; between these 
two shades a short cuneiform spot of brilliant cupreous scales 
leaves the dorsum immediately before the tornus, occupying the 
central portion of the orange patch of which they form the 
boundaries ; along the costa are seven pale straw-coloured streaks, 
