546 PROCEEDINGS OF THE NATIONAL MVSEVil. vol.46. 



costa; a pale brown, deeply wavy, subterminal line; terminal 

 fuscous, linear spots. Abdomen and hind wings dark-gray brown; 

 an interrupted darker terminal line. Fore wings below fuscous 

 gray, the costa tmged with buff; a medial small dark spot. Hind 

 wings below dirty white, the costa irrorated with brown; a dark 

 discal point, and postmedial line. 



Expanse. — 27 mm. 



Habitat. — St. Laurent, Maroni River. 



Type.— C&t. No. 16653, U.S.N.M. 



FOCILLA GRADIVUS. new species. 



Male. — Palpi orange brown. Head, collar, and thorax dark- 

 reddish brown, with a few white irrorations. Abdomen fuscous. 

 Wings brown; a marginal fuscous line broken into spots opposite 

 cell. Fore wings: Base tinged with olive and irrorated vnth. white 

 between ceU and submedian; antemedial fuscous brown, lunular, 

 inset in cell; the orbicular indicated by a white edging on outer side; 

 a wavy medial line touching antemedial line below submedian, 

 followed by a parallel line, interrupted by reniform, which is light 

 brown edged with white except in front, and contains a roseate buff 

 line ; costa shaded with roseate brown between lines, but not at base 

 or apex; postmedial fuscous, outcurved, wavy angular, outwardly 

 edged with whitish on costal margin; a black shade from postmedial 

 at vein 6 to termen at vein 4, inbent and broader at vem 2, preceded 

 by some grayish scaling below vein 4; traces of a paler subterminal 

 line above vein 6, terminatmg in a whitish costal spot. Hind wings: 

 Space above cell to subterminal, and a streak below cell and vein 2 

 tinged with slate color; antemedial and medial fuscous lines; a post- 

 medial finer black line; a heavy subtermmal black shade from vein 

 5 to inner margm, outwardly edged with a pale line; the subterminal 

 less distinct on costa. Fore wuigs below: Inner margin light brown; 

 cell and just below steel gray; an antemedial line on costa, which is 

 mottled brown and gray; a fuscous outcurved medial Imc, preceded 

 by another line from cell; reniform and postmedial as above, the 

 latter followed by whitish buff shadings; outer margin paler, the 

 subterminal reduced, faintly marked; markings otherwise as above. 

 Hind wings below brown, uTorated with white; a large pale lunule 

 on discocellular ; a fuscous shade between medial and postmedial 

 lines, the latter outwardly pale edged; subterminal angular, finer, 

 outwardly pale shaded. 



Expanse. — 38 mm. 



Habitat. — St. Laurent, Maroni River. 



Wings crenulate and angled. 



Type.— C&t. No. 16654, U.S.N.M. 



