1875.] 189 [Scudder. 



markings of the under surface rather heavier. But the two females 

 are undersized, measuring but 21 mm. in expanse ; one of them has 

 but few, and the other no, blue scales on the disk above; neither of 

 them has a trace of any orange spots upon the outer border of the 

 hind wings above, and very little, or no tinge of orange upon the 

 outer border of the fore wings beneath. In all these respects, speci- 

 mens from the southern coast of Labrador agree better with those 

 from Canada and New York than with those from Cape Breton. 



Chrysophanus Epixanthe. Whether Dorcas is distinct or 

 not, I do not now venture to assert, but the specimens from Cape 

 Breton belong to Epixanthe, and not, as we should expect, to the 

 Dorcas type. 



Eurymus Philodice. The most interesting insect brought 

 home by Mr. Thaxter is unquestionably our common E. Philodice. 

 The males hardly differ at all from the normal type, as found in New 

 England, excepting in possessing a less conspicuous spot at the ex- 

 tremity of the cell in the fore wings above, although there, as here 

 it varies to a considerable extent. In both sexes it is usually a very 

 pale orange transverse spot, edged narrowly with dusky scales. The 

 female, too, is dimorphic in both places, but whether yellow or pallid, 

 Cape Breton specimens invariably show a uniform and considerable 

 departure from the normal type. New England individuals have a 

 very broad, dark border to the upper surface of the fore wings, ex- 

 tending down to the inner border, almost or quite as conspicuously 

 as in the male, although not extending along this border toward the 

 base ; this marginal band encloses a curving submarginal series of 

 ill-defined yellow (or pallid) spots ; it is only occasionally so narrow 

 that the spots are situated at its very edge; so, too, there is a 

 marginal band upon the hind wings, like that of the males, though 

 narrower, often broken, and with an ill-defined interior edge ; this, 

 however, is occasionally reduced to a few scattered grimy scales be- 

 tween the upper subcostal and middle median nervules, very much 

 as appears in the female of Eurymus Pelidne, when they are present 

 at all. Now in the females before me, from Cape Breton , the mar- 

 ginal band of the hind wing is either totally absent, or is reduced to 

 a few scales clustered about the extremity of the subcostal nervules, 

 and is, in only a single instance, continuous along the border between 

 these nervules; while the border of the fore wing, broad indeed next 

 the costal margin, narrows rapidly, and terminates usually at the 

 lower median nervule, or, if it reaches to the submedian nervure, it 



