86 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxx. 



with brown; dark streaks on the discocellulars; a dark-brown outer 

 line; the postmedial more bufl- white, with onl}" traces of black shades. 



Expanse. — 150 mm. 



Habitat. — Rio Grande do Sul, Brazil. 



Some males are smaller than the t3'pe specimen, and the female is 

 considerabl}^ larger. 



Tyj)e.^C2ii. No. 94.51, U.8.N.M. 



ARSENURA DRUCEI, new species. 



Body brown, the thorax tinged with gray. Primaries: costa to 

 postmedial line dark gray, thinly irro rated with black; a grayish butf 

 shade below subcostal also irrorate with black; otherwise brown, more 

 reddish brown between postmedial and subterminal; inner margin 

 grayish brown; a vague dark-gray streak on discocellular; postmedial 

 dark brown, slightly wavy, tine, black, outcurved at vein T, then iinel}" 

 wav}^, followed by white between veins 4 and 5 and by smaller white 

 spots at veins 3, 2, and below vein 2; from below vein 4 an irregular 

 blackish shade to inner margin, crossed by a bluish-white line; a 

 broad lilacine gray space from vein 6 to costal margin, outwardly 

 indentate at vein 7 and edged by a tine white line, terminating in a 

 small black spot on costa, partly followed ))y a reddish shade. Sec- 

 ondaries grayish brown to outer line, then dark brown to subterminal, 

 which is whitish, finely wavy, and followed b}' a blackish line, thick- 

 ening between the veins. Underneath lilacine buff, irrorated with 

 black; black spots on discocellulars; a tine dark-brown outer line; the 

 postmedial lunular, wavy, consisting of a geminate line of lilacine 

 scales, the outer margins olive brown without irrorations. 



Expanse. — Female, 145 mm. 



Ilahitat. — Chiriqui, Panama. 



This species is figured'* as the female of C. arcaei Druce, of which 

 1 have both sexes. The two species are quite different underneath. 



Ty2)e.—C2it. No. 9452, U.S.N.M. 



ARSENURA THOMSONI, new species. 



Body buff, the thorax tinged with gra^^sh brown. Primaries, light 

 brown, strongly shaded with gray at base and above median and vein 2 

 to near the outer line, this grayish portion irrorated with black; faint 

 traces of an antemedial brownish line; discocellular edged with brown; 

 the outer line fine, blackish brown, nearly straight from vein 6 to inner 

 margin, outwardly shaded with white between veins 4 and 5 and 

 between 2 and submedian, otherwise followed b\' large patches of 

 iridescent steel-gray; above vein the line continues straight to costa 

 as a grayish shade, followed by a lilacine gra}^ space outwardl}' edged 

 by a fine white line, deeply indentate on vein 7, and b}^ black points 



a Biologia Central!- Americana, pi. xix, fig. 3. 



