THE COMMON SKIPPERS 



B. The pale markings on the under surface of the hind 

 wings obscure, the whole wing flecked with lilac scales 

 on a purplish ground. (A. vialis), p. 270. 



The Roadside Skipper. 



BB. Markings on under surface of hind wings distinct, the 

 whole wing flecked with pale yellowish-green scales on 

 a dark brown ground. (A. samosef), p. 271. 



The Pepper-and-Salt Skipper. 



AA. Fringe of wings not marked with alternating colors. 

 B. Club of antennse without a recurved apical hook, re- 

 sembling the antennae of butterflies. 

 C. Under surface of hind wings with silvery white spots. 

 (P. palmmori), p. 272. The Arctic Skipper. 



CC. Under surface of hind wings without silvery white 

 spots. 



D. Upper surface of hind wings yellow, with the cos- 

 tal and outer margins blackish brown. {A. numi- 

 ior), p. 272. The Least Skipper. 



DD. Upper surface of hind wings of a uniform brown. 

 {O.powesheik), p. 273. The Powesheik Skipper. 



BB. Club of antenna? with a recurved apical hook. 



C. Exceptionally large species, the wings expanding 

 about two inches. With a well-marked vestigial vein 

 in cell R + M of the fore wing. (C. eth litis), p. 285. 

 The Brazilian Skipper. 



CC. Species of moderate size, the expanse of the wings 

 rarely exceeding one and one-half inches. No vestig- 

 ial vein in cell R + M of the fore wing. (The Erynjiis 

 Groups 



263 



