INSECUTOR INSCITI^ MENSTRUUS 215 



Hydriomena ulfrida, new species. 



Male. — Palpi grayish mottled with black at tip. Head white 

 crossed by a black line between antennae. Collar and thorax 

 whitish green crossed by black lines. Abdomen above fuscous 

 with some white irrorations subdorsally, underneath cream 

 white. Fore wings pale yellow green ; a quadrate white spot 

 at end of cell; a basal purplish fascia edged with black from 

 costa to vein 1 ; a fine black subbasal line, angled in cell, then 

 vertical, expanding slightly on inner margin ; a broad ante- 

 medial fascia mostly purple edged with black, vertical from 

 subcostal to inner margin ; a quadrate medial spot on costa, and 

 a few black points below cell near antemedial; a postmedial 

 thick line from costa to vein 4, its inner edge curved at white 

 spot in cell, below 4 obsolete with only a small spot on vein 3 

 and on vein 2, also some black points above inner margin ; a 

 broad subterminal fascia from costa to vein 4, joined at vein 7 

 by an oblique spot from apex, a small spot below vein 3, and 

 a purplish line from vein 2 to inner margin irrorated with 

 black ; terminal paired black spots at veins ; cilia gray divided 

 by a white line. Hind wings white, faintly grayish in cell and 

 along inner margin ; small dark paired spots at veins termi- 

 nally. Wings below whitish, the fore wings showing the 

 markings of upper side in black ; hind wings with a few dark 

 irrorations and a fine postmedial line, the terminal spots as 

 above. 



Expanse, 24 mm. 



Habitat. — Slopes of Popocatepetl at about 10,000 feet. 



Type.— Cat. No. 25639. U. S. Nat. Mus. 



Near H. leucosigtw Dyar. 



Hydriomena prisca, new species. 



Male. — Palpi, head and body white ; some sufifusion on pa- 

 tagia and the dorsal tuft at base of abdomen pale yellow green. 

 Fore wings pale yellow green, the markings chiefly purplish 

 gray edged with black ; six narrow spots on costa tapering 

 behind ; basal spot continuing as a fine line to submedian ; a 

 subbasal point on median contimn'ng as a fine line, expanding 



