BUa?TEBFL,IES OF THE DISTRICT OP COLUMBIA 205 



until about the middle of July. It reappears late in July and may 

 be found until about the last of September. But it is much less 

 common in summer than in spring, the second brood being apparently 

 only partial. 



Habits. — It has a strong, rapid, and highly irregular flight, keep- 

 ing usually very near the ground. It is very fond of flowers early 

 in spring, particularly those of blueberries, later especially those of 

 the red clover. Early in July it is attracted by the flowers of the 

 Endianpipe, or ghost plant, and the nectar from these seems partially 

 to stupefy it. 



When feeding this species holds its wings partially extended, some- 

 times fully extended, in contrast to the silver-spotted and the frosted 

 skippers, which hold their wings erect and parallel. 



Cate^yiUar. — The caterpillar much resembles those of the preced- 

 ing species, particularly that of AchaXarus lyciudes., from which it 

 differs most obviously in its very narrow neck, which is less than half 

 as wide as the head. It feeds especially on clover and on bushclover, 

 and also on various related plants. 



THORYBES DAUNUS (Cramer) 



SouTHEBN Smoky Skipper 



Plate 31, Figures 2, 3 



OoGurrence. — Common in suitable localities throughout the Dis- 

 trict and the surrounding country, though somewhat less abundant 

 than the northern smoky skipper {T. 'pylades). 



It first appears in the second week in May, becoming common in 

 June and flying until the middle of July. Its period of greatest 

 abundance is the last half of June, whereas the preceding species 

 {T. 'pylades) is most abundant in the first half of June. It later re- 

 appears, flying throughout August. Ernest Shoemaker has speci- 

 mens taken on August 21, 1900. Like the preceding, it is much more 

 numerous early than late in summer. 



Habits. — This species occurs with the preceding, and the habits of 

 the two seem not to differ to any appreciable degree. 



Genus PYRGUS Hubner 



PYRGUS CENTAUREAE WYANDOT (Edward*) 



Grizzled Dartee 

 Plate 32, Figure 4 



Occurrence. — One of the specimens upon which "W. H. Edwards 

 based his new species Hesperia wyandot was taken at Washington 

 by Mr. Drexler. Ernest Shoemaker took a specimen in Arlington 



