184 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



This fine form was collected in Maine by Mr. Anson Allen, to whom 



1 respectfully dedicate the species. It is a little larger than graphica, 

 and differs at once by (he markings on the under surface of primaries 

 and in color. 



MeLIPOTIS STYGIALIS, n. sp. 



S. — Allied to nigrescens, but smaller, and with ill-defined lines or 

 shades on the fore wings. Primaries fuscous, with an ill-defined, paler 

 shade-band beyond the obsolete t. a. line, which is marked on costa. A 

 velvety-black dash on the cell before the narrow, curved reniform, and 

 surmounted by a blackish costal shade. A vague, pale patch in the 

 usual place behind the reniform. T. p. line merely indicated on costa, 

 and beyond it a blackish patch, limited outwardly by the inception of 

 the pale s. t. line, which also vanishes inferiorly. Some black scale- 

 points on internal margin, where the t. a. line and t. p. line may be sup- 

 posed to terminate; also along inception of t. p. line. Hind wings 

 almost wholly blackish; whitish on disk; fringes white at apices to 

 vein 4, then dusky, again white opposite a yellowish spot between veins 



2 and 3, breaking the dark border. Beneath opalescent-white at base, 

 with a black discal streak ; the broad, dark border broken as on upper 

 surface, but here the spot is white ; fringes as above. Fore wings white 

 at base and beyond the median blackish band ; the blackish terminal 

 field is broken by two subterminal superposed white marks before the 

 apices. Expansion, 35 millimetres. Illinois (lir. Bean, 'No. 645). 



I think I have noticed this form in the Philadelphia collections. 

 From my material, I am led to suggest that ochreipennis may be the 

 male sex of nigrescens. I can only repeat that, from actual specimens, 

 I have shown that fasciolaris is abundantly distinct from nigrescens, and 

 that Mr. Morrison's contrary suggestion, made without knowing Hiib- 

 ner's species in nature, is quite unwarranted. ^ 



Panopoda kufimargo (Hubner). 



From a series of specimens taken near Buffalo, I can no longer con- 

 sider roseicosta as distinct. The reniform varies by the presence or 

 absence of an inferior black spot. The ground-color varies from dull 

 ochrey to reddish. The lines are variably distinct. I return to my 

 opinion that we have but two species of Panopoda so far known, namely : 

 RUPiMAEGO of Hiibner, to which I would refer ruhricosta and roseicosta 

 of Guenee and my cressonii as synonyms, or as designating indefinable 

 varieties; and caeneicosta of Guenee, which may always be known by 

 its color and shape of the t. p. line, while the discal spots are here also 

 subject to great variation in form. 



POAPHILA PLACATA, n. sp. 



2 . — The smallest species yet known. Fore wings dark brown, with a 

 purple reflection. T. p. line diffuse, angulated opposite the cell, sinuate, 

 but not scalloped. Eeniform upright, inconspicuous. Subterminal shade 



