512 PROCEEDINGS OF THE NATIONAL MUSEUM. tol. 46. 



LEPTOCTENISTA MALONIA, new species. 



Male. — Palpi: Second joint fuscous brown, fringed with lighter 

 brown; third joint whitish buff. Head, collar, and thorax brown; 

 some buff mottling on head. Abdomen above fuscous brown. Fore 

 wings: Costal margin, cell, and termen light brown; inner margin 

 whitish buff; an elongated black brown space between cell and sub- 

 median from base to middle; a similar space between veins 2 and 5 

 to near termen, subterminally upbent to costa; base of costa dark 

 brown; an antemedial black brown line, expanding on costa, traceable 

 across cell, and on inner margin; orbicular small, fuscous; a large 

 fuscous spot at end of cell, preceded by a whitish line suffusing behind 

 with dark outer space; postmedial fine, fuscous brown, dentate, 

 traceable on pale portions; an outbent pale fascia from median below 

 vein 2, separating the two dark spaces; some light reddish brown and 

 fuscous irrorations on pale portions; terminal triangular lunate dark 

 spots; cilia fuscous gray. Hind wings fuscous brown; a terminal 

 darker line; a darker shade on discocellular. Wings below buff irro- 

 rated with brown ; fuscous discal spots and postmedial shade; abroad 

 subterminal shade. Fore wings shaded with fuscous except on mar- 

 gins. 



Expanse.— ^2 mm. 



Habitat. — Rockstone, British Guiana. 



Very similar to L. pretiosa Schaus; veins 3 and 4 on hind wdngs 

 are from angle of cell; the postmedial shade below is nearer cell, 

 whereas in pretiosa it is remote and linear. 



Type.— C&t. No. 16584, U.S.N.M. 



LEPTOCTENISTA LIGNEA, new species. 



Male. — Palpi dark brown. Head, collar, and thorax reddish 

 brown; collar tipped Avith white; some whitish mottlings on vertex. 

 Abdomen dark brown. Fore wings brown; a black brown shade be- 

 low cell from base to beyond middle at submedian, in front reaching 

 below orbicular, edged with whitish brown; a dark streak at base of 

 inner margin; base of costa and antemedial streaks dark brown; 

 orbicular small, beyond middle of cell, reniform larger, both fuscous 

 brown; postmedial remote from cell, fine, fuscous brown, deeply 

 lunular on costa, preceded below vein 6 by broad darker brown shad- 

 ings, below vein 3 only indicated by shadings, followed above vein 6 

 by a broad subterminal dark brown shade; terminal triangular fus- 

 cous brown spots. Hind wings dark brown. Wings below brown; 

 fuscous discal points, and a dark outcurved postmedial line; no 

 terminal spots. 



Expanse. — 35 mm. 



Habitat. — Omai, British Guiana. 



Type.—C^i. No. 16585, U.S.N .M. 



