8 PKOCEEDINGS OF THE NATIONAL MUSEUM vol. 79 



Male. — ^Antenna, palpus, head, and thorax dark grayish fuscous; 

 the scale ends paler ; a black spot on basal segment of antenna ; inner 

 side of palpus whitish. Fore wing grayish fuscous with dorsal half 

 somewhat j^aler; a rather broad costal fold, not reaching to middle 

 of Aving, inclosing a thick tuft of yellowish scales interspersed with 

 a few black scales; a very sparse dusting of black scales on costal 

 half of wing; costa faintly striated; a blackish dot at apex and a 

 curved black line over ocelloid patch ; latter consisting of two obscure 

 vertical metallic bars inclosing two faint black dots on a pale ground ; 

 veins 3, 4, and 5 approximate toward termen ; termen concave. Hind 

 wing pale smoky fuscous ; hair on cubitus in the form of a thick pale 

 tuft (similar to that of Crocidosema plebeians) at base followed by 

 a line of whitish hairs beyond; a long yellow hair pencil from 

 extreme base; black sex scaling on anal area to and including vein 

 lb, on area between cell and costa and along upper and lower veins 

 of cell; the sex scaling repeated upon the same areas on under side 

 of hind wing; cell clear, somewhat paler than remainder of wing; 

 cilia pale with dark basal band, whitish at inner angle. Under side 

 of fore wing with area of tlie fold distinctly ocherous and rough 

 scaled; costal half of wing (except for area under the fold) from 

 dorsal margin of cell and to end of cell covered with black sex 

 scaling. Similar black scaling on dorsum of abdomen and on tibia 

 of metathoracic leg. Throughout, the black sex scales are overlaid 

 but not obscured by a scattered dusting of white scales. 



FeTJiale. — Differs from the male in having no black sex scaling; 

 in having the costal area of fore wing paler than the dorsal and the 

 head and thorax darker. Fore wing v»ith a blackish-brown incom- 

 plete basal patch on dorsum; a similarly colored patch on dorsum 

 before tornus; area between them whitish or whitish ocherous; on 

 disk above this an oblong dark (brown or blackish) patch; remainder 

 of wing pale ocherous-brown with a faint rosy tint; costal striae 

 brown interspaced beyond middle with sordid white; apical dark 

 dot conspicuous. Hind wing very pale smoky fuscous, darker toward 

 apex and termen ; cilia slightly paler, wdth a dark basal band. 



Genitalia figured from type (male) and paratype (female) from 

 the tj'pe locality. 



Alar expanse. — 12.5 to 15.5 mm. 



Tppe and paratypes. — U.S.N.M. No. 43257; paratype also in Cor- 

 nell University collection. 



Type locality. — Lima, Peru. 



Food plant. — Alfalfa (Medicato) , cowpesis (Vigna). 



Revmrks. — Described from male type and 3 male and 11 female 

 paratj^pes reared from larvae boring in stems of cowpeas and re- 

 ferred by Dr. Johannes Wille under No. 154-29; 1 male and 1 

 female paratype labeled "On Palms, E. Gandron, collector;" 1 



