54 INSECUTOR INSCITI^ MENSTRUUS 



formed of lilacine white irrorations, its outer edge lunular or 

 dentate. Wings below lilacine gray on basal half, the outer 

 half darker gray, with some dark striae, the two shades sepa- 

 rated by a pale brown, lunular dentate narrow shade; a sub- 

 terminal wavy fine dark gray line edged with whitish scales, 

 preceded by paired fuscous shades at veins, and followed by 

 small reddish brown spots at veins ; discocellular spots black, 

 containing some ochreous scales, the spot on forewing small, 

 the spot on hind wing a little larger and round. 



Expanse, male 130 mm., female 140 mm. 



Habitat. — Balzabamba, Ecuador. 



Type.— Cat. No. 23975, U. S. Nat. Mus. 



Very similar to Arsenura arcaei Druce ; the hind wings 

 crenulate as in Arsenura batesi Felder. 



Received from Prof. Edward T. Owen. 



Arsenura oweni, new species. 



Male. — Head and palpi fuscous brown; a whitish shade 

 around base of antennae which are yellowish. Collar and 

 thorax grayish brown, the former darker shaded in front. 

 Abdomen above and below a little darker ; lateral yellow points. 

 Thorax below and legs fuscous brown. Fore wings light 

 brown ; costal margin to post-medial line and cell to ante- 

 medial shade whitish thinly mottled with brown scales ; ante- 

 medial shade broad, dark brown but faint on costa, outangled 

 below vein 2 ; post-medial line fuscous brown, faintly in- 

 curved, suffusing and followed by a broad dark chestnut brown 

 shade widest toward costa; subterminal line fine, dark gray, 

 outcurved below costa to vein 6, then diffuse, wavy, broader, 

 below vein 2 straight and inbent to inner margin, preceded by 

 a grayish brown shade, followed between veins 6 and 4 by 

 small grayish lunules, and below 4 by a wavy line forming 

 lunules between veins 4 and 2, below vein 2 parallel with post- 

 medial marked with some small black spots and with a faint 

 whitish shade between the two lines ; some broad ochreous 

 shading follows the lunules on interspaces ; above vein 6 the 

 post-medial is followed by a narrow light brown shade ; a fine 

 white streak and a gray shade edged by a fine white line. 



