No. 1601. NEW SOUTH AMERICAN GEOMETRID MOTHS—WARREN. 105 
Hind wing—With the rosy submarginal band; a faint cell spot 
and outer line rosy; this last is faintly traceable also on fore wing. 
Under side suffused with rosy, most densely along costa of fore 
wing and hind margins of both wings, where the band becomes mar- 
ginal. 
Head, thorax, and abdomen yellow dusted with rosy scales; vertex 
and antennal shaft white, the pectinations fuscous. 
Haupanse of wings.—17 mm. 
Locality.—One male from Rockstone, Essiquebo, Dutch Guiana, 
September, 1904. 
Type.—Cat. No. 11399, U.S.N.M. 
CALLIPIA COSTINOTATA, new species. 
Fore wing.—Dingy, cinereous, darker toward apex and hind mar- 
gin, without any distinct markings, except along costa; costal area 
from base to middle bearing dark blotches, three near base and two at 
middle, of which the latter is broader, separated by pale ochreous 
spaces which toward base are tinged with deep red; the lines, of 
which these costal blotches indicate the commencement, are probably 
plainer in some examples; fringe concolorous. 
Hind wing—Wholly cinereous. 
Under side of fore wing blurred cinereous, the apical area black- 
ish, varied with reddish and pale vermiculations; costal blotches as 
above; hind wing wholly blackish fuscous, with thick pale vermicula- 
tions, and indistinct traces of a pale curved fascia beyond middle; a 
white cell spot on upper arm of discocellular; inner margin narrowly 
whitish; fringes of both wings glossy cinereous, mottled with pale. 
Head, thorax, and abdomen cinereous; legs cinereous, the tibiee and 
tarsi mottled with pale. — 
Haupanse of wings.—35 mm. 
Locality One male from Peru. 
Type.—Cat. No. 11400, U.S.N.M . 
MARMOPTERYX ELUDENS, new species. 
Fore wing.—Pale dirty gray, overlaid, especially toward costa and 
hind margin with olive gray scales, the whole wing having a blurred 
look; costa with several slight dark marks, indicating lines, none of 
which are visible except toward hind margin, where the interspaces 
between the veins are marked with a double row of elongate dark 
blotches; fringe slightly paler gray. 
Hind wing.—Pale gray; the dark interspaces of under side show- 
ing through. 
Under side of fore wing darker gray, the costal area olive gray, 
with sight darker shading between the veins; hind wing with the cell 
and all the interspaces charged with coarse dark green scales. 
