INSECUTOR INSCITI^ MENSTRUUS 53 



slightly incurved to inner margin, outwardly edged with cinna- 

 mon brown and closely followed by a subterminal dark reddish 

 line interrupted from vein 4 to below vein 6 ; a reddish brown 

 streak from subterminal to apex below costa ; termen irrorated 

 with lilacine; cilia brown. Hind wings black; a large yellow 

 spot before termen, inbent narrowly along costal margin to 

 base, its inner edge straight from upper angle of cell to vein 2 

 near termen, its outer edge rounded. Fore wings below black ; 

 a ridge of velvety black upturned hairs along inner margin, 

 which is narrowly yellow ; a post-medial orange spot from 

 costa to vein 2, its inner edge straight, its outer edge rounded. 

 Hind wings below black; the orange spot slightly narrower 

 and only reaching a little beyond middle of costal margin. 



Expanse, 48 mm. 



Habitat. — Joinville, Southeast Brazil. 



Type.— Cat No. 23974, U. S. Nat. Mus. 



Family SATURNIiD^ 



Arsenura crenulata, new species. 



Male. — Head and palpi fuscous brown, a white line on vertex 

 between antennae. Collar and thorax dark brown. Abdomen 

 gray. Thorax below and legs fuscous gray, the tarsi whitish 

 yellow with brown rings. Fore wings dull grayish brown; 

 costal space to post-medial grayish, almost white on costal 

 edge, post-medial line slightly darker than ground color, down- 

 curved and inbent to inner margin at base; a pale spot on 

 discocellular faintly edged with brown which extends to costa 

 on proximal side; a triangular grayish brown shade on inner 

 margin from near base to middle; subterminal line outangled 

 below costa, then incurved and wavy to inner margin, grayish 

 with a white streak on costa, points at veins and a triangular 

 white spot above inner margin, followed by a gray shade, 

 lunular on vein 6 edged by a white line, indentate on vein 7 

 and with a black point on costa. Hind wings dull grayish 

 brown ; a post-medial dark line ; subterminal line pale marked 

 by white points on veins from vein 5 to inner margin, fol- 

 lowed by a narrow dark gray shade crossed by a fine line 



