BUTTERFLIES OF THE DISTRICT OF COLUMBIA 65 



July they have altogether disappeared with the exception of per- 

 haps a dilapidated one here and there. This accords with Mr. 

 Scudder's observations, and also with mine. But in central Massa- 

 chusetts, in the hilly region of the Connecticut Valley, Mr. Sprague 

 took fresh males sparingly from July 6 to 10. These were not accom- 

 panied by a single female, nor by any worn individuals. For the 

 next three days he took several more good and fair specimens of both 

 sexes, but none poor. This was in 1885. In other years faded speci- 

 mens were taken in the same region until after August 1. 



W. H. Edwards reported fresh individuals in southern West Vir- 

 ginia in autumn, and it is reported from Bushnell in the mountains 

 of North Carolina on September 1. Mr. Edwards reared one to 

 imago from eggs of the same year. Mr. Scudder did the same in 

 Cambridge, though in the house, and the caterpillar did not pupate 

 until October 13. 



In the District this butterfly first appears at precisely the same 

 time that it does in the vicinity of Boston. But instead of disappear- 

 ing by the middle of July it usually flies into August, and fresh indi- 

 viduals are of casual occurrence throughout August and September. 

 Apparently the same thing occurs in the Kanawha Valley in West 

 Virginia, and in the mountains, though not in the lower portions, of 

 North Carolina. 



Very late individuals, which so far as my experience goes are only 

 to be found at Beltsville, Md., and in the vicinity of the Eastern 

 Branch and seem never to occur in the Potomac Valley west of 

 Washington, are probably from eggs laid earlier in the same year. 



Notes. — Specimens from the District are slightly darker and some- 

 what more grayish than specimens taken in the vicinity of Boston. 

 They also reach a slightly larger size, the largest local females hav- 

 ing the fore wing 23 mm. long. 



Genus SATYRODES Scudder 



SATYRODES EURYDICE (Johanssen) 



Grass Nymph 

 Plate 1, Figures 3 to 6 



Occun^ence. — Very local, but common where it is found. Ernest 

 Shoemaker writes that on several occasions he has found this species 

 quite common along the Eastern Branch. It is very common in the 

 bogs at Beltsville, Md., and I have seen a single individual flying 

 across a field immediately east of Paint Branch just north of the 

 road to Ules Crossing. Mr. Shoemaker has also taken it at Carlin 

 Springs, Fairfax County, Va., in swampy spots along the brook 

 a very short distance from the spring. 



