392 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 59. 



shade from the middle of costal margin to toruus; irregular trans- 

 verse streaks between the veins, those below cell continuous to inner 

 margin; the streaks very faint on costa. Hind wings pale brownish 

 gray with slightly darker lines from costa to vein 2; inner margin 

 broadly shaded with grayish brown, the lines hardly visible. Wings 

 below almost the same; no oblique shade on fore wing; hind wings 

 without darker shading on inner margin but a black streak along 

 costa. 



Expanse. — 36 mm. 



Habitat. — Quirigua, Guatemala. 



Type.— Cut. No. 23426, U.S.N.M. 



GIVIRA MODISMA, new species. 



Male. — Palpi and frons light brown, vertex fuscous brown, collar 

 and thorax purple brown, all mottled with whitish hairs. Abdomen 

 dorsally mottled red brown and yellowish, laterally dull gray, ven- 

 trally as above. Tibiae and tarsi with numerous dark rings. Fore 

 wings purple brown, shading outwardly to dull purple, crossed by 

 numerous fine broken lines of dull fuscous; costa somewhat paler 

 with dark brown spots; inner margin narrowly fuscous gray; cilia 

 pale at base, followed by a fine brown line, the tips mottled. Hind 

 wings whitish yellow; veins and a few irrorations, pale brown; a dark 

 streak from base below cell, expanding into a triangular fuscous space 

 from vein 2 to anal angle terminally. Fore wings below brown, the 

 costa with yellowish irrorations between the numerous brown spots. 

 Hind wings below yellowish white with some fine pale irrorations 

 chiefly on veins; dark brown streaks on costal margin. 



Expanse. — 38 mm. 



Habitat. — Quirigua, Guatemala. 



Type.— Cat. No. 23427, U.S.N.M. 



LENTAGENA PERFIDA, new species. 



Male. — Palpi, head, collar, and thorax white, thickly mottled with 

 reddish brown; the collar behind and patagia dorsally edged with 

 fuscous brown. Abdomen whitish with fuscous segmental lines, and 

 paired dorsal brown tufts on second and third segments; laterally 

 with a few dark scales; ventrally with dark brown spots largest 

 toward base. Fore wings: Costal margin pale brown with large fus- 

 cous spots edged with white; base brown, broken into spots by a 

 white subbasal line and veins; a broad white antemedial shade evenly 

 outcurved; a dark gray streak in cell medially below subcostal; inner 

 margin white, mottled with brown and crossed by fuscous striae; 

 postmedial space mostly gray, crossed by thick fuscous brown striae; 

 a white and yellow streak on discocellular; veins from cell yellow 

 brown; terminal space mottled gray and brown with some white mot- 



