210 INSECUTOR INSCITI^ MENSTRUUS 



Expanse, 31 mm. 



Habitat. — Popocatepetl Park, Mexico ; also from Morelos. 



Type.— Cat. No. 35632, U. S. Nat. Mus. 



This species is figured in the Biologia Centrali Americana 

 Heterocera, pi. 56, fig. 21, as the female of Hydriomena cydra 

 Druce. 



Hydriomena vulcinaria, new species. 



Male. — Head, collar, and thorax mottled black and white. 

 Abdomen white thickly irrorated with mouse gray and black 

 leaving segmental white lines. Fore wings grayish white ir- 

 rorated with darker scales ; base black followed by a yellow 

 green shade to subbasal line which is black, oblique on costa, 

 excurved and outbent below cell ; antemedial and medial lines 

 suffusing in cell, deep mouse gray edged with black ; the similar 

 postmedial and still broader subterminal bands slightly oblique 

 to vein 3, then inset, the subterminal followed by pale green 

 mottling ; termen with trigonate black spots ; the lines on costal 

 margin preceded by yellow green spots ; some green scaling on 

 inner margin. Hind wings silvery white sufifused with mouse 

 gray darkest on termen ; faint postmedial and subterminal lines. 

 Fore wings below silvery smoky gray with traces of darker 

 postmedial and subterminal shades, the latter fuscous on costa ; 

 whitish spots on costa. Hind wings below silky white irrorated 

 with mouse gray forming postmedial and subterminal lines. 



Expanse, 31 mm. 



Habitat. — Slopes of Popocatepetl, Mexico, at 13.000 feet. 



Type.— Cat. No. 25633, U. S. Nat. Mus. 



Nearest Hydriomena proha Druce found at the same locality. 

 The colors of the hind wings immediately distinguish the two 

 species. 



Hydriomena stylites, new species. 



Male. — Palpi fuscous ; f rons white ; vertex salmon buff with 



some tav/ny hairs and a transverse black line in front. Collar 



and thorax salmon buff, the collar with a reddish brown stripe 



• and similar shading on thorax in front and on patagia. Abdo- 



