BTJTTERFLIES OF THE DISTRICT OF COLUMBIA 71 



Notes. — Some individuals of this butterfly have the band on the 

 fore wings very dark {mdritima, pi. 3, figs. 1, 2), while in others the 

 band is an almost pure white, as in the form (pi. 3, fig. 4) that alone 

 occurs in the mountain valleys of southern West Virginia and the 

 Carolinas. In occasional males the lower eye spot within the yellow 

 band on the fore wings is reduced to a dot, as is sometimes the case 

 in eastern Massachusetts. If caught nearer the sea such specimens 

 would be properly considered as referable to the southern coastal 

 form pegala (pi. 2, figs. 6-8). 



It has not been possible to secure a sufficient series of specimens of 

 this insect to warrant any very definite statements about it. But 

 from observations in the field — ^this butterfly is far more easily ob- 

 served than caught — the typical form is the most common, the mari- 

 tifma form is locally frequent, the white-banded form is rare and is 

 confined to the woods above Cabin John, and the 'pegala-Y)k& males 

 are exceptional and occur only with the maritiina form. 



CERCYONIS ALOPE MARITIMA (Edwards) 



Plate 3, Figures 1, 2 



This form, conspicuous on account of its very dark color and 

 especially the deep shade of the band on the fore wings, is locally 

 frequent in pine woods along Paint Branch and the Eastern Branch 

 and in the adjacent territory. In the limited areas where it is found 

 it usually predominates over the typical form. It first appears 

 nearly or quite a week in advance of the latter. 



In the males the lower eye spot in the yellow band on the fore 

 wings is sometimes reduced to a dot showing an approach to C. a. 

 pegdl-a (pi. 2, fig. 6). 



NOTE 



In addition to the species of Satyrinae given in the preceding 

 pages, the following should be looked for in this region : 



Neonympha gemma (see p. 243). Cercyonis alope pegala (see p. 244). 



Neonympha phocion (see p. 243). Enodia portlandia (see p. 244), 



Neonympha sosyUus (see p. 244). 



Subfamily Nymphalinae 



KEY TO THE SPECIES 



a* Hind wings with the outer mai-gin devoid of any processes, 

 except that there may be a slight tooth near the anal angle. 

 6\ Hind wings beneath with many conspicuous silver spots. 

 c\ Larger, the fore wings more than 30 mm. long. 



d^. Fore wings above reddish orange with delicate black 

 markings ; hind wings above purplish black, with two 



66544—32 6 



