K0.1262. NEW AMERICAN BUTTERFLIES— SCHAUS. 435 
CHIOMARA MARTHONA, new species. 
Diagnosis. — Bod 3% brown; base of abdomen and palpi below, grayish. 
Primaries, base light brown, followed by a lilaeine shade, next to which 
^s a velvety black spot below cell; a dark- velvety brown irregular 
median band, shaded on either side with brown, darker than basal 
color, and irro rated with lilaeine scales; an outer lilaeine gray band 
edged with dark-velvety In-own, curved bej^ond cell and joining 
median shade on inner margin; the brown edging forming spots most 
conspicuous below costa, on inner side of outer band; the space 
between median and outer bands light brown above vein 2; outer 
margin brown; a dark brown subterminal shade preceded by a paler 
shade; a terminal darker line. Secondaries, dark brown; a darker 
subterminal broad shade. Underneath, brown, the outer margins 
paler; some white on costa at apex of primaries; a terminal dark line; 
a silver}" line on base of fringe. 
Expanse. — Thirt v-f our millimeters. 
Ilahitat. — Peru. 
Tyjye.—^o. 5993, U.S.N.M. 
THANAOS AUSTERUS, new species. 
Diagnosis. — Wings dark brown. Primaries, markings formed by 
dark-grayish irrorations not very pronounced; a few scales forming a 
median line; a cluster at end of cell, followed by the outer band, 
which is curved around the cell; the outer margin broadly dark gray- 
ish, interrupted by a subterminal dark line; a terminal l)rown line; 
base of fringe, gray; the gra^^ish markings more or less limited by 
five brown lines darker than ground color. Secondaries, dark brown, 
the outer margin paler, interrupted by a dark-brown subterminal 
line and a terminal line. Underneath, lighter brown. Primaries, an 
interrupted outer row of bufl' spots; some clusters of grayish scales 
along outer margin; base of fringe, bull'. Secondaries, as above. 
Expanse. — Thirt}"- six millimeters. 
Ilahitat. — Peru. 
Type.—^o. 5994, U.S.N.M. 
BUTLERIA ARPIA, new species. 
Diagnosis. — Bod}', brown above, pale-yellow below. AVings, dark- 
])rown above. Primaries, a large bright-yellow spot at end of cell 
from subcostal to below vein 2. Secondaries, fringe light gray; a 
large bright-yellow spot in disk. Underneath, primaries black; the 
apex and outer margin pale yellow; the base of costa pale yellow; the 
median spot duller, extending to submedian vein; fringe blackish. 
Secondaries, pale- yellow; fringe yellow at base, outwardly gray. 
Expanse. — Twenty-five millimeters. 
Ilahitat. — Rio Janeiro, Brazih 
Tyjje.—^o. 5995, U.S.N.M. 
