AMERICAN LEPIDOPTERA. 295 



palf, dusted outwardly with darker and obsoletely rosy scales; fringes very 

 pale. Beneath pale ; the primaries almost entirely covered with dark ferrugin- 

 ous scales which are more diffusely scattered over the hind wings. Expanse 

 18 m. m. 



My types are from Texas; I believe, however, that I have seen 

 specimens from Pennsylvania and the Middle States. I regret not to 

 be able to identify both sexes of this pretty species. 



Xanthoptera rosalfoa, Grote. — % £ . — Obscure yellow. Anterior 

 wings with the costal stripe of X. coccinifascia, but its color is pale rose and is 

 not so brilliant. As in that species the stripe extends over the prothorax, and 

 the head and appendages are of the same hue. An oblique but broader trans- 

 verse pale rosy band extends across the wing as in the preceding species; it is 

 narrowly succeeded by the ground color of the wing, and then there is a second 

 similar stripe taking the place of the usual subterminal line; behind this the 

 wing is again obscure yellow to the pink fringes tipped with white, but the 

 colors are not contrasted, and the whole terminal portion of the wing beyond 

 the first oblique transverse band appears diffusely washed with pink. Hind 

 wings dark, narrowly and evenly pink along the terminal margin and within 

 anal angle; fringes tipped with white. Beneath dusted with pink scales on a 

 discolorous ground. Thorax concolorous with fore wings above. Expanse 

 22 m. m. 



Habitat. — Pennsylvania ; Massachusetts. 



In case of the disintegration of M. Guenee's genus, I propose that 

 the generic term be restricted to Xanthoptera nigrofimbria, Guenee, 

 from the Atlantic District as the type. It will then, I think, natur- 

 ally include the foregoing species. 



Xanthoptera fax, Grote. 



A small species with hairy thorax and allied to X. semiflava Guenee, 

 which Prof. Glover has found in Florida, feeding on Scarracenia as 

 figured by Abbot. Both X. semiflava and X. semicrocea have been 

 received from Georgia from Mr. Ridings, and the latter from Texas, 

 collected by Mr. Belfrage. The present little species has the head and 

 thorax very bright orange-yellow, contrasting with the other parts in 

 color. Both wings and abdomen are deep brownish-black above and 

 below, without markings, almost dead black. On the primaries, how- 

 ever, over the basal two-thirds, maybe detected a sprinkling of orange- 

 red scales which do not contrast very strongly nor take on any defined 

 shape, though massed in patches, more obviously twice on the cell. 

 The fringes are concolorous with the wings, but are tipped shortly 

 with orange-red. 



This little species, only in two specimens before me, was brought by 



