Minot.] 320 [February 24, 



in the latter part of May. The female was captured hovering over 

 blueberry blossoms, and it is upon this plant that the larvas probably 

 feed. The male, also, though captured on a different day, was taken 

 in close proximity to these bushes. Mr. Walter Faxon has also a 

 female, which he caught near Blue Hill, in the middle of May. 



In the male, the black velvety dash on the primaries extends from 

 the first divarication of the median to the outer termination of the 

 cell. Over the basal half of the wing are sprinkled a number of 

 bright chromaceous scales, most numerous near the costa. The basal 

 half of the space included between the dash and the outer margin 

 and the branches of the median, is suffused with chromaceous. Of 

 the two spots at the termination of the discal cell, that nearest the 

 costa is a little advanced and dirty white, as in the female, while 

 the lower is of a bright chrome color. Otherwise the primaries above 

 are the same as in the female. Secondaries as in the female, though 

 the markings of the under side are more distinctly repeated. 



Beneath the primaries and secondaries tinged with ochraceous. 

 The markings the same as in the female, but more distinct. In both 

 the males and females the nervures beneath are considerably lighter 

 than the ground color. 



Mr. Scudder, in the description of bis specimen, states that the 

 " secondaries are uniform in tint." This does not agree with either 

 my female or Mr. Faxon's, for in them both the secondaries are 

 considerably darker at the base than at the margin. 



Mr. Minot also remarked that from an examination of 

 about t'^'enty specimens of Ilesperia Pocahontas and H. 

 Quadaquina, he was convinced that they belonged to the 

 same species. 



The Secretary stated that during the past year an expedi- 

 tion, composed mostly of students fi-om Williams College, 

 under the lead of Prof James Orton of Rochester, N. Y., 

 had returned from S. America, where they had been making 

 collections in natural history. The field of the expedition 

 lay between the Pacific shore and the headwaters of the 

 Amazons, and the general route was from Guayaquil up the 

 Rio Guayas, over the western Cordillera near Chimborazo 

 into the valley of Quito ; thence over the eastern Cordillera 



