HENRY SKINNER, M.D. 299 



Revision of the American Species of the Genus 

 CCENONYUIPHA. 



BY HENRY SKINNER, M. D. 



These little butterflies have presented difficulties in determining 

 them, which induced me to take an interest in the genus. They are 

 very variable as to the number of spots and ocelli, and vary greatly 

 in the color of the under side. The color of the upper side is fairly 

 constant in the species respectively. I have been making an effort 

 to get specimens for quite a number of years and I have kept all I 

 received ; therefore, I have long series representing distribution and 

 seasonal variation. The species in all cases appear to have been 

 described from very few specimens, and the describers could have 

 had no idea of the kind or character of the variation, or its value 

 for erecting new species. Kodiak was described from one male ; 

 var. pulla from one male; pamphiloides from one female ; ampelos 

 one pair; brenda two males, one female; elko two males, one 

 female. It was only by accident that I found out what elko was. I 

 happened to see that I had some of the original specimens from J. 

 E. Bates in my own collection, otherwise I would probably still be 

 in the dark. After a careful study of all the species, I have arrived 

 at the conclusion that of any single character the color of the upper 

 side is the most reliable. It is no infrequent thing to find the ocelli 

 and spots differing on the two sides of the same insect. The origi- 

 nal descriptions are given in all cases, so that students of the subject 

 can compare the specimens and the views of the authors with my 

 own conclusions. 



€'• californica Douh.-Hew., Gen. Diur. Lep., pi. 67, f. 2. 



" Shape and size of our davus : resembles it in the appearance of the under side, 

 hut it is very different on the upper side, which is white, as in phyrne 9 ! it flies 

 in cool shady places." 



The figure represents the upper side and is probably a female. 

 The primaries have a single well-marked ocellus, and a narrow 

 white band extending across the wing from the costa to the inner 

 margin. The secondaries have two ocelli on each wing and a 



* The remarks in quotations following descriptions are parts of the original 

 articles. 



TRANS. AM. KNT. SOC. XXVI. JULY, 1900. 



