60 



IOWA STUDIES IN NATURAL HISTORY 



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Genus ANCYLOXYPHA Felder 

 Ancyloxypha Feld., Verh. z.-b. Ges. Wien xn, 477, 1862. Type 

 Hesperia monitor Fab. 

 Palpi upturned; second joint normal, deeply scaled; third 

 slender, pointed, almost as long as second. Antennae much less 



than one-half as long as primar- 

 ies ; club blunt, moderately large. 

 Costa of primaries rounded at 

 base, less so in outer half ; outer 

 margin broadly rounded, cell 

 slightly less than three-fifths as 

 long as wing ; vein 5 nearer to 4 

 than to 6; 2 and 3 near end of 

 cell. Secondaries rather long 

 through cell, rounded; outer 



margin slightly emarginate be- 

 ing, zu. Ancyloxypha numitor i'ab. a. t A i n hit i m 



Club of antenna, b. Section of paipus; tween veins 4 and 6. Male with- 



outer line shows limit of vestiture, c. Pal- , • -n- r./-> 



pus, d. Neuration OUt Stigma. Fig. 20. 



Fig. 20. Ancyloxypha numitor Fab. 



1. ANCYLOXYPHA NUMITOR 



Hesperia numitor Fab., Ent. Syst. in, (i), 324, 1793. 

 Thymelicus puer Hbn., Verz. bek. Schmett. 113, 1820. 

 Heteropterus marginatus Harris, Ins. Inj. Veg., 3rd ed., 308, 1862. 

 Scudder, Butt. New Eng. n, 1558, 1889. 

 Holland, Butterfly Book 345, pi. xlvii, f. 2, 1898. 



Atlantic coast west to Texas, north into Canada; May to August. 



The disk of the primaries is black below, while that of the following 

 species is ruddy fulvous. 



ab. LONGLEYI 

 Ancyloxypha longleyi French, Can. Ent. xxix, 80, 1897. 



Described from Illinois. A form in which the primaries are glossy 

 black above. 



2. ANCYLOXYPHA ARENE 



Heteropterus arene Edw., Trans. Am. Ent. Soe. in, 214, 1871. 



Copaeodes myrtis Edw., Papilio H, 26, 1882. 



Apaustus leporina Plotz, Stett. Ent. Zeit. xlv, 166, 1884, (fide G. & S.). 



Holland, Butterfly Book 346, pi. xlvii, f. 11, 1898. 



Biol. Cent.-Am., Rhop. n, 472, pi. 92, ff. 35-38, 1900. 



Arizona, August. Differs from numitor in the absence of black from 

 the under surface of the primaries. 



