A REVIEW OF THE HESPERIID^E OF THE 

 UNITED STATES. 



By Harrison ('•. Dyar, A.M., Ph.D., 

 Washington, D. C. 



I have remarked on the latest general work on the Hesperiidae 

 (jour. X. Y. ent. soc, xiii, 98, 1905) and pointed out that nearly 

 half of the United States species were omitted therefrom. Our 

 species have, therefore, yet to be correctly placed. An attempt to 

 do this was made in Bulletin 52, U. S. National Museum, but the 

 result is unreliable as there was no time then for special study. Dr. 

 Holland has placed the commoner forms in the "Butterfly l>ook " ; 

 but his arrangement does not agree with Mabille's entirely and he has 

 omitted many species. Scudder's system has been adopted by all the 

 leading students of the Hesperiidae, Watson, Godman and Salvin, 

 Holland, Mabille ; it is time that our species were correctly arranged. 

 1 have endeavored to do that in the present article and have referred 

 all the described forms to their modern genera. Five species that I 

 have not seen are inferred from the descriptions only, viz., Pam- 

 phila harpalus Edwards, P. cabelus Edwards, P. yuma Edwards, P. 

 milo Edwards and P. chusca Edwards. For a few others not seen 

 I have other evidence. I am indebted to Dr. Hy. Skinner for 

 loan of some types and for permission to look over his collection : 

 I have also looked at some specimens in the collection of the Brooklyn 

 Institute by the kindness of Mr. Doll and in the Strecker collection 

 by the kindness of Mrs. E. E. Strecker. My main reliance, naturally, 

 has been the collection of the United States National Museum, includ- 

 ing Mr. Wm. Schaus' material on deposit there. 



Family HESPER1ID.K. 

 Subfamily Pyrrhopygin.^.* 

 Genus PYRRHOPYGA Hiibner. 

 P. arizons Godman & Salvin. 



Our species has been erroneously identified as P. anises Hew.; but 



*The definitions of the subfamilies and sections are given in Mabille's work. 



Ill 



