4 Bulletin of the Brooklyn Entomological Society IlV. viii 



narrower less definite and shorter central black band beneath. 

 The costal margin of the fore wing is curved as in pruinosa, and 

 not so abruptly bent near its middle as in linnei. It lacks the 

 two broad white dashes at the base of the third abdominal seg- 

 ment so conspicuous in pruinosa. 



We have not followed Distant in the use of the generic name 

 Rihana, for reasons which will be given by Mr. Edward P. Van 

 Duzee in a future paper. 



Iphiclides ajax and Eurymus interior [Lepid.] from the summit 

 of Mt. Marcy, N. Y. 



By F. E. Watson, New York, N. Y., and L. V. Coleman, 

 Brooklyn, N. Y. 



On the afternoon of July 15, 1912, after a long climb up the 

 winding trail connecting the town of North Elba with the summit 

 of Mount Marcy, we reached the highest point in the Adiron- 

 dacks, 5,344 feet. 



Although a violent gale was blowing from the south, Coleop- 

 tera, Hymenoptera and Orthoptera were quite abundant on the 

 bare rocky peak. Butterflies, however, were scarce, except for 

 the genus Eurymus. Quite a number of these were flying between 

 the tree line and the summit, but owing to the wind and the 

 nature of the ground, only four specimens were captured. These 

 proved to be E. philodice 1 male, 1 female, and E. interior 1 male, 

 1 female. In the late afternoon, about four o'clock, while we 

 were enjoying some luncheon on the summit, an ajax flew within 

 two yards of us, or rather was blown by and carried down the 

 north side of the mountain. 



Shortly before evening we made our way down the mountain 

 to Lake Tear-of-the-clouds, near which we camped for the night, 

 at an altitude of 4,300 feet. The following morning we returned 

 to the summit, which we found completely enveloped in clouds. 

 The haze soon cleared away, however, and by nine o'clock the sun 

 was shining with an intense brightness. It was hoped that the 

 wind, which had changed during the night and was now blowing 

 strongly from the north, would drive the ajax back up the moun- 

 tain. This is apparently just what happened, for about ten 



