300 
EXOTIC MICKOLEPIDOPTERA. 
along costa towards base: a dark fuscous elongate mark on costa 
beyond base of cleft; a subdorsal streak of white suffusion from ^ 
to near cleft; a white streak along lower margin of first segment 
from about ^ to near apex; a streak of white suffusion from 
second discal spot to middle of termen of second segment: cilia 
pale ochreous, on costa tinged white towards apex. Hindwings 
grey ; cilia light grey. 
Costa Rica, Vulkan Irazu, 4000 feet; 1 ex. 
Pterophorus scribarius, n. sp. 
c?. 30 mm. Head light fuscous, forehead ochreous-whitisli. 
Palpi fuscous. Thorax ochreous-whitish. Porewings cleft to |, 
first segment moderate, pointed, second slightly narrower, termen 
very oblique; pale greyish-ochreous, a few blackish specks in disc; 
a greyish elongate mark on costa above base of cleft; a blackish 
dot on lower angle of cell, whence a short fine indistinct fuscous 
oblique line is directed towards posterior end of this; an undefined 
blotch of dark fuscous suffusion in middle of second segment; 
suffused dark fuscous lines on posterior part of veins 4 and 7, not 
quite reaching suffused dots at their extremities ; a larger similar 
dot at extremity of vein 3 : cilia ochreous-whitish, more ochreous- 
tinged at angles and on dorsum. Hindwings pale ochreous- 
greyish; cilia whitish-ochreous. 
Colombia, Mt. Tolima, 12,500 feet, December ; 1 ex. 
Pterophorus crescens, n. sp. 
c?. 34-35 mm. Head ochreous sometimes sprinkled grey, 
forehead white. Palpi 1, whitish, more or less sprinkled grey. 
Thorax ochreous-whitish. Porewings cleft to |, first segment 
moderate, pointed, second broader, termen oblique; ochreous- 
whitish, veins slightly infuscated, also dorsal edge on anterior half, 
a cloudy dark grey dot on lower angle of cell; dark grey dots on 
costa hardly above apex, on lower margin.of first segment towards 
apex, on termen of second*segment at both angles and in middle, 
and one more elongate on dorsum towards tornus : cilia whitish, 
becoming pale greyish-ochreous on dorsum. Hindwings ochreous- 
whitish ; cilia whitish-ochreous. 
Colombia, San Antonio (6600 feet), Tolima Canon (5600 feet); 
2 ex. Near balanotes. 
Pterophorus trachyphloeus, n. sp. 
d 2 . 23-25 mm. Head, thorax light brownish, sometimes 
irrorated whitish and slightly sprinkled black. Palpi light 
brownish sprinkled blackish, tips of joints white. Porewings cleft 
to first segment rather narrow, pointed, second broader, termen 
very oblique, slightly concave ; light brownish, variably suffused 
grey in disc and towards dorsum, with irregularly scattered black 
scales; numerous transverse tufts or ridges of raised scales, a 
larger one towards dorsum at |, and a still larger tuft before cleft, 
