346 
EXOTIC M1CROLEPIDO PTERA. 
Hindwings beneath with downwards-directed appressed fringe of 
pale greyish hairscales from upper margin of cell from middle of 
cell to end, vein 2 and a short part of cubitus preceding it fringed 
beneath with pale greyish hairscales. 
Texas, Alpine, 5000-8000 feet, April, May; 2 ex. Resembles a 
strongly marked rivulata, but quite different in palpi and neural 
fringes of hmdwings. 
Gelechia isocrossa, n. sp. 
cf $ • 16-19 mm. Head grey-whitish or whitish-ochreous, 
speckled dark fuscous. Palpi dark grey irrorated blackish, apex cf 
second joint whitish, terminal joint sprinkled whitish. Thorax 
grey-whitish to light brownish-ochreous, usually speckled dark 
fuscous. Abdomen ochreoiis-whitish, segments suffused grey except 
margins, 3 basal segments pale ochreous-yellowish, anal tuft of 3 
grey-whitish without yellow suffusion, median ventral area clear 
whitish. Forewings pale greyish speckled dark fuscous, somewhat 
sprinkled whitish and variably tinged or mixed brownish-ochreous, 
sometimes tending to form streaks or patches; a short black longi¬ 
tudinal sometimes interrupted streak in disc beyond middle, end 
often enlarged and representing second discal stigma ; indistinct 
small whitish opposite spots on costa at | and tornus, sometimes 
connected by a faint hardly curved shade: cilia whitish-grey, rows 
of grey and blackish points, base irregularly scaled black. Hind- 
wings light grey, thinly scaled in disc anteriorly, darker on termen 
and towards apex; cilia pale ochreous-grey. Hindwings cf beneath 
with downwards-directed appressed fringe of pale jmllow-greyish 
hairs from upper margin of cell from base to end of cell, cubital 
vein to end of cell fringed on both sides with light greyish hair¬ 
scales. 
Texas, Alpine, 5000-6000 feet, April, May ; 40 ex. This and 
the three following species are distinguished from all that follow by 
having in hindwings of cf a fringe similar to that of the two pre¬ 
ceding species but extending along the whole upper margin of cell. 
The Mexican nigripectus Wals. is probably allied to the present 
species. 
Gelechia xanthuris, n. sp. 
cf 20-24 mm. Head light glossy fuscous sometimes sprinkled 
darker. Palpi dark fuscous, extreme tip whitish. Thorax fuscous, 
shoulders darker. Abdomen fuscous, segmental margins narrowly 
pale, 3 basal segments sometimes pale ochreous-yellowish but some¬ 
times only obscurely tinged or not at all, anal tuft cf grey-whitish 
suffused orange internally. Forewings fuscous obscurely irrorated 
darker ; in $ sometimes a short dark fuscous streak on fold towards 
base; stigmata cloudy, dark fuscous, plical obliquely before first 
discal, second discal rather large, subtriangular or elongate, but all 
these in cf obscure and sometimes hardly perceptible, in 2 more 
distinct; apical area often sprinkled whitish, a small indistinct 
whitish spot on costa at -i and faint angulated line sometimes per¬ 
ceptible : cilia whitish-fuscous, scattered dark fuscous or blackish 
