206 ENTOMOLOGICAL NEWS [xxxii, '21 



Pamphila ottoe Edw. and pawnee Dodge, with 

 Description of a New Form (Lep., Rhop.). 



By R. A. LEUSSLER, Omaha, Nebraska. 



A study of ottoe and pawnee has recently been undertaken 

 in an endeavor to classify a form of Pamphila met with from 

 time to time at Omaha, Sioux City and elsewhere in this 

 vicinity, which appeared to be neither typical ottoe nor typical 

 pawnee but partakes of the characteristics of both. 



P. ottoe, described from a single male, is a very lightly 

 marked form in which the fuscous border of the primaries is 

 faint and very narrow. It is apparently correctly illustrated 

 in Holland's Butterfly Book, PL 46, figs". 11 and 12. 



In paivnee the male has broad, well defined, fuscous bor- 

 ders on both primaries and secondaries, with a tendency for 

 the fulvous area to creep out over the dark borders, especially 

 at the apex of the primaries where it resolves itself into dis- 

 tinct spots. On the underside of the secondaries there is 

 almost invariably a row of small light spots. The typical 

 female is quite dark with pale spots on both primaries and 

 secondaries, well defined on upper as well as under surface. 

 Dodge, in his original description, makes definite mention of 

 these spots on the secondaries. 



Race montana Skinner is a very dark form, the upper sur- 

 face with more extensive fuscous areas, and the under sur- 

 face more brownish yellow than pawnee. 



In eastern Nebraska and western Iowa another form is 

 found which differs from both ottoe and pawnee and it seems 

 desirable to name it. I therefore propose the name 



Pamphila ogallala, n. form., 



after the branch of the Sioux Indians of that name. Its char- 

 acteristics are as follows : 



In size it will average slightly larger than paivnee. males measuring 40 

 mm. and females 46 mm. as against 34 mm. and 40 mm. in the case, of 

 Pawnee. 



$ Primaries with fairly broad, fuscous border, not clearly defined, 

 with pale fulvous irrorations over the fuscous borders, not forming dis- 

 tinct spots, however, as in paivnee. Less duskiness below stigma than 

 in pawnee. Secondaries with larger fulvous area than in paivnee; ful- 

 vous tone of both wings tawnier than in pawnee. Under surface more 

 ochreous than in pawnee and without spots on either wing. 



9 . The greatest difference between pawnee and otiallala appears in 

 this sex. While the 9 pawnee is generally dark with well-defined pale 



