132 U.S. NATIONAL MUSEUM BULLETIN 25 7 



5. Unicolorous deep fuscous, terminal cilia conspicuously white . L. recurvata 

 Not unicolorous 6 



6. Fuscous, with base, a median fascia and apical fifth white, first discal stigma 



obliterate L. acribostola, new species 



Fuscous, with costa suffused with wlaite, a white transverse line at 4/5, first 

 discal stigma well defined L. decorosa, new species 



7. Fuscous, cilia along costa and termen white, only opposite apex a dark attenu- 



ated bar, exaggerating falcate shape of wing . L. niphotricha, new species 

 Cilia not contrasting white 8 



8. Rather dark fuscous, markings ill defined 9 



Pale ochreous, more or less infuscated, stigmata often distinct. ... 11 



9. Unicolorous dark fuscous, termen rounded . . L. leucomastis, new species 

 Not unicolorous, if dark fuscous, then discal stigmata distinct .... 10 



10. Termen convex; discal stigmata black, paler encircled; hind wing whitish with 



darker veins L. telosperma, new species 



Termen concave; discal stigmata faint, not encircled with paler; hindwing 

 unicolorous light fuscous L. activata, new species 



11. Discal stigmata large, conspicuous, rounded, second largest, a dark dor- 



sal suffusion below this; plical stigma absent L. megalopis 



Discal stigmata small, weak or absent; plical stigma often present . . 12 



12. A well-defined series of dark fuscous dots along end of costa, around apex and 



along termen, forming an almost continuous marginal streak. 



L. sophronopa, new species 

 Marginal dots either absent or minute, sparse and ill defined 13 



13. Forewing pale ochreous, not infuscated 14 



Forewing light or pale ochreous, distinctly suffused with darker fuscous or 



brownish 15 



14. Discal stigmata fuscous, small, plical stigma absent; antenna distinctly 



thickened, pale ochreous; terminal segment of palpus slender, little longer 



than median L. docilis, new species 



Discal stigmata black, distinct, plical distinct, below second discal. An- 

 tenna less distinctly thickened, whitish; terminal segment of palpus less 

 slender, being slightly thickened towards base, distinctly shorter than 

 median segment L. goniometra 



15. Plical stigma present, sometimes contiguous with second discal stigma . 16 

 Plical stigma absent; a shade between second discal stigma and dorsum. 



L. fausta 



16. Plical stigma contiguous with second discal stigma . L. luteola, new species 

 Plical stigma large, before first discal stigma . . L. improvisa, new species 



Lecithocera sophronopa, new species 



Figures 202-203, 603 



Female, 15 mm. Head light fuscous, vertex darker. Antenna 

 pale fuscous, finely dark ringed, scape purplish. Palpus long, re- 

 curved, median segment exceeding base of antenna, dilated by closely 

 appressed scales, fuscous, top whitish; terminal segment pale ochreous 

 strewn with fuscous, slender, pointed, almost 1. Thorax and abdo- 

 men fuscous, with faint lilac reflections, anal tuft tawny ochreous. 



Forewing with vein 7 absent, 8 separate; oblong, costa curved at 

 extremities, apex obtusely pointed, termen sinuate, rounded beneath, 



