PTEROPHORlDiE, 
297 
with two dark fuscous rings. Abdomen greyish-ochreous, base 
mixed white, dark fuscous antemedian and postmedian bands. Fore¬ 
wings termen of second segment obliquely excavated, its upper angle 
forming a short lobe, lower not prominent; brownish-ochreous 
irrorated dark fuscous, a more ochreous band crossing basal half 
of both segments, followed by a dark fuscous band, a few white 
scales on margins of these : cilia ochreous-whitish, at apex a dark 
fuscous projection, on termen basal area grey tipped blackish but 
widely interrupted on middle of each segment, in cleft on dark fuscous 
band grey mixed blackish, on dorsum a dark grey patch on dark 
band. Hindwings dark fuscous tinged reddish, on third segment 
some white scales just beyond middle ; cilia purplish-grey, on 
third segment a black scale or dorsum before middle, and large 
roundish apical tooth of blackish scales occupying both margins. 
Peru, Cocapata, 12,000 feet; 1 ex. I find that the South 
American species which I have attributed to Deuterocopus (and 
Mr. T. Bainbrigge Fletcher to Leptocleuterocopus ) must be transferred 
to Oocyptilus ; no line can be drawn between species in which the 
lower angle of the second segment of forewings projects so as to 
form a short triangular lobe, and others (such as the present) in 
which it does not, so that the wings cannot in any sense be termed 
3-lobed; whilst the true species of Deuterocopus (not American) 
always have three slender well-developed lobes. 
Platyptilia haemogastra, n. sp. 
<4 $ . 13-14 mm. Head, thorax dark fuscous. Palpi slender, 
smooth, curved, black lined white. Abdomen uniform crimson- 
brown. Forewings segments moderate, termen rather oblique; 
dark fuscous, some scattered white specks, costal edge blackish 
minutely speckled white, posteriorly three small white dots ; slight 
whitish irroration about base of segments, and a fine interrupted 
whitish line near termen : cilia light grey, a blackish subbasal 
shade on termen. Hindwings dark grey, lighter and reddish-tinged 
anteriorly, third segment short, linear, suffused coppery; cilia 
grey, a small tooth of black scales on each margin of third segment 
near apex. 
Peru, Cocapata, 12,000 feet; 2 ex. Next chalcogastra. 
Platyptilia thrasydoxa, n. sp. 
<$ . 27 mm. Head, thorax whitish mixed grey. Palpi 2, sub¬ 
ascending, rough-scaled above, obtuse, blackish-grey, tip and rough 
scales of upper surface white. Forewings cleft to |, termen rather 
oblique, on first segment slightly concave, on second slightly 
bowed; white, slightly sprinkled whitish-ochreous and pale grey; 
a dark grey costal streak mixed blackish from base to postmedian 
blotch, its lower edge forming a flattened-triangular blackish pro¬ 
minence before middle of wing; dorsal third irregularly streaked 
transversely grey to near tornus, a blackish-grey spot before i; a 
triangular blackish blotch on costa at J reaching to below cleft; a 
transverse black spot on costa at f not reaching lower margin of 
segment, space between this and preceding tinged ochreous ; some 
