60 



IOWA STUDIES IN NATURAL HISTORY 



Genus ANCYLOXYPHA Felder 

 Aneyloxypha Feld., Verb. z.-b. Ges. Wien xii, 477, 1862. Type 

 Hesperia numitor 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- 

 tween veins 4 and 6. Male with- 

 out stigma. Fig. 20. 



Fig. 20. Aneyloxypha numitor Fab. a. 

 Club of antenna, b. Section of palpus; 

 outer line shows limit of vestiture, c. Pal- 

 pus, d. Neuration 



1. ANCYLOXYPHA NUMITOR 



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

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

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

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

 Holland, EWterfly Book 345, pi. XLvn, 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 



Aneyloxypha, 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 ii, 26, 1882. 



Apaustm leporina Plotz, Stett. Ent. Zeit. XLV, 166, 1884, (fide G. & S.). 



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



Biol. Cent.-Am., Ehop. ii, 472, pi. 92, ff. 35-38, 1900. 



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

 the under surface of the primaries. 



