102 IOWA STUDIES IN NATURAL HISTORY 



North Carolina and Kentucky to Texas; August. 



The under side of the secondaries is very strikingly different from any 

 other species, but I see no structural basis for Stomyles, of which textor 

 is the type. 



Genus LERODEA Scudder 

 Lerodea Scud., Syst. Rev. 59, 1872. Type Hesperia eufala Edw. 

 Palpi upturned, very smoothly sealed ; third joint about half 

 as long as second but buried in vestiture of second almost to its 

 tip. Antennae much less than one half as long as primaries; 

 apiculus slender, shorter than thickness of club. Primaries api- 

 cally produced; costa slightly emarginate or straight except at 

 apex and humeral angle; outer margin slightly sinuate, convex 

 from apex to vein 2. Secondaries rounded, lobed at anal angle. 

 Both primaries and secondaries longer and more rounded in the 

 female than in the male. Cell of primaries about three-fifths 

 as long as wing; discocellulars weak, scarcely oblique; vein 5 

 almost straight, about two-thirds as far from 4 as from 6 ; 2 much 

 nearer to 3 than to base of wing in both sexes. Male without 

 stigma. Mid tibiae spined. Fig. 28. 



1. LERODEA ARABUS 



Pamphila ambus Edw., Papilio n, 26, 1882. 



Arizona, April. 



Differs from eufala in the presence of a dark brown discal shade on the 

 under surface of the secondaries. 



2. LERODEA EUFALA 



Hesperia eufala Edw., Trans. Am. Ent. Soc. n, 311, 1869. 

 Pamphila ftoridae Mab, Bull. Soc. Ent. France (5), vi, p. ix, 1876. 

 Holland, Butterfly Book 356, pi. xlvi, f. 33, 1898. 

 Biol. Cent. -Am., Rhop. II, 500, pi. 95, ff. 16-18, 1900. 

 Wright, Butt. W. Coast pi. xxxi, f. 445a, b, 1905 (as nereus). 

 Florida, Texas, Arizona; April to July, October and November. 



GROUP D 

 Key to the genera 



1. Middle tibiae without spines .Prenes 



Middle tibiae spined 2 



2. Male with stigma ; under surface of secondaries mottled with 



several shades Thespieus 



Male without stigma ; under surface of secondaries uniform- 

 ly colored Calpodes 



