AMERICAN LEPIDOPTERA. 297 



Labial palpi somewhat projected, compressedly scaled, third article continu- 

 ous. Expanse 20 to 22 m. m. 



Habitat. — Pennsylvania (Philadelphia). 



I am not certain of the generic position of these two species ; they 

 have the outline of the genus and the size, but the abdomen is bare 

 of dorsal tufts. The rather longer, compressedly and more lengthily 

 scaled, squarely terminated palpi of E. malaca, are distinctive. 



The following is a list of the North American species of Erastria 

 hitherto described, all of which are known to me in nature, and repre- 

 sented in the collection of the American Entomological Society : 



ERASTRIA, Treits. 

 nigritula, Guence. musta, G. &~ R. 



Miana undulifera, Walk. albidula, Guence. 



carneola, Guence. mitographa, Grote. 



synochitis, G. <t- R. malaca, Grote. 



muscosula, Guence. 



In the British Museum Lists two species referred to Erastria are 

 described under the specific names of rubicunda and inscripta. The 

 first of these species belongs to the genus Callopistria, and I believe 

 was previously described by Gruenee under Eriopus. The second is a 

 re-description of Herrich-SchaefFer's Bryophila teratophora. 



M ARASJIAL.US, Grote. 

 HarasmalllS liislrio, Grote. — % 9- 



Eleven specimens from Texas and New York belong, undoubtedly, 

 to a second species of this noticeable genus. It is perhaps a little 

 smaller than M. ventilator. The general color is very different, be- 

 ing darker and of slaty grey. The usually confused and imperfect 

 markings of the primaries can with difficulty be compared ; from the 

 darker color they are less obvious than in M. ventilator. A ferrugin- 

 ous patch appears subcostally margining inwardly the inception of the 

 subterminal line, where, as in M. ventilator, it extends downwardly 

 opposite the reniform spot. This latter is expressed in M. histrio by 

 a single black dot. Base of the wing shaded with ferruginous iuside 

 the arcuate geminate t. a. line. The hind wings are very dark and want 

 the ferruginous patch on the external margin, while beneath there is no 

 similar patch on the fore wings subcostally before the apices as in M. 

 ventilator. The whole insect wants the more lively variegated appear- 

 ance of M. ventilator. A notable difference is at once apparent in the 



