INSECUTOR INSCITI^ MENSTRUUS 307 



silvery gray ; trace of postmedial and subterminal darker liries ; 

 fore wings v/ith a faint medial line, the costa between the lines 

 whitish green. 



Expanse, 24 mm. 



Habitat. — Volcan Santa Maria, Guatemala. 



Type.— Cat. No. 25628, U. S. Nat. Mus. 



Near H. it aria Schaus. 



Hydriomena popoa, new species. 



Male. — Palpi and head white, the former with a yellow tinge 

 laterally. Collar and thorax mottled white, green, and black. 

 Abdomen grayish with broad darker transverse shading above. 

 Fore wings green crossed by irregular fuscous or black lines ; 

 a broad basal line curved from costa to submedian ; subbasal 

 line outbent on costa, angled above median, and vertical to 

 inner margin where it expands somewhat ; antemedial fuscous 

 edged with black, constricted and angled in cell, inbent and con- 

 stricted below fold, expanding and outcurved across vein 1 ; 

 medial line thick on costa, then fine, sinuous, vertical, rather 

 close to antemedial ; postmedial quadrate on costa, then fine, 

 dentate to a spot on discocellular, twice outcurved from veins 

 4: to 2, and vertical to inner margin ; subterminal broader, fus- 

 cous edged with black, dentate from costa to vein 4, twice 

 lunular to vein 2, slightly dentate below vein 2 ; paired trigonate 

 black spots at ends of veins, partly suffusing on tip of vein ; 

 a small spot at apex. Hind wings brownish drab, the cilia 

 whitish with dark spots at veins. Fore wings below whitish, 

 the basal third suffused with dark mouse gray ; a large, fuscous 

 postmedial space from veins 2 to 7, almost reaching termen and 

 connected with costa by two small fuscous spots. Hind wings 

 below white finely irrorated with light drab ; a black point at 

 upper angle of cell; a fine lunular postmedial line; some dark 

 scaling on termen. 



Expanse, 35 mm. 



Habitat. — Slopes of Popocatepetl, at 8,000 feet. 



Type.— Cat. No. 25629, U. S. Nat. Mus. 



