280 
EXOTIC MICROLEPIDOPTERA. 
Thiotriclia nephelodesma, n. sp. 
5 . 13 mm. Head, palpi, thorax shining white. Porewings 
very narrow, shining white; moderate grey transverse fasciae in 
middle and towards apex, costa and dorsum slenderly grey between 
these, apex suffused grey, confluent on costa with second fascia ; 
cilia grey. Hindwings and cilia grey. 
Hew Ireland, St. Matthias I., July (Eichhorn ); 1 ex. 
Polyhymno plenracma, n. sp. 
cJ. 12-13 mm. Head white, crown tinged greyish centrally. 
Palpi white, anterior edge of terminal joint dark grey. Thorax 
ochreous-fuscous, five white lines. Pore wings apex acute, produced, 
falcate; fuscous, apical area pale ochreous; a white costal line 
from base to middle, thence very obliquely deflected to just above 
apex of median streak; a broad white median streak from base, 
beyond middle beneath with a slight tooth sometimes emitting a 
short fine line on fold, thence narrowed to a point at | ; a short 
white subdorsal line beyond middle, and dorsal edge white posteriorly; 
more or less variable white marking or suffusion beneath apex of 
median streak; an oblique white strigula from costa at f, whence 
an acutely angulated silvery line runs to tornus : cilia light grey, 
on costa white, with two black fuscous bars followed by basal, 
median, and apical lines above apex, on tornus white on basal third, 
with a black basal mark beneath apex. Hindwings rather dark 
grey; cilia grey. 
Natal, "Weenen, March ( Thomcisset ) ; 2 ex. (type Brit. Mus.). 
Nearest parcicma , hut without subdorsal stripe. 
Polyhymno thinoclasta, n. sp. 
S . 13 mm. Head, thorax white. Palpi white, second joint 
light grey except towards apex, anterior edge of terminal joint 
dark fuscous. Porewings apex strongly produced, falcate; dark 
fuscous ; a broad white stripe, ochreous-tinged towards dorsum, 
occupying about dorsal half of wing throughout, upper edge irre¬ 
gularly excavated on median third, beyond this with an irregular 
projection whence a fine white line runs to just above its apex, 
where it meets a similar line running from beneath costa beyond 
middle ; a silvery line running from an oblique white strigula on 
costa at f, acutely angulated just beyond apex of- these lines, and 
continued along termen to near tornus, its upper portion imme¬ 
diately followed by a pale ochreous streak running into apical 
projection : costal cilia above this dark fuscous, with four oblique 
white strigulae, cilia otherwise pale grey, basal half white on upper 
part of termen with a fuscous subbasal line, beneath apical projec¬ 
tion a round fuscous spot edged anteriorly black, opposite apex 
dark fuscous with a white median line. Hindwings grey ; cilia 
light grey. 
S. Bhodesia, Bulawayo, Dec.; 1 ex. (Coll. Janse). Next pciusi- 
macha. 
