COLIAS IV. 



laying eggs. To make sure that I was stating the fact in this particuhar, I 

 questioned Mr. Boll particularly as to the hybernation of both Eurytheme and 

 Keewaydin, and he writes in reply, " I never saw specimens of the bright orange, 

 or late summer type of this species later than the first days of November, and 

 these were always much worn. I never saw Eeewaydin flying between Novem- 

 ber and May." In another letter Mr. Boll states that any worn individuals seen 

 at the close of winter are Ariadne, and in March these are taken in copulation 

 with Ariadne fresh from chrysalis. I received from Mr. Boll in April, 1878, 

 2 <? 3 ? , taken in Archer County, between the 24th and 28th February, all fresh 

 from chrysalis. One of the females is an albino, one pair are typical Ariadne, 

 and the other male and female are similar to the examples had from the Illinois 

 larvae mentioned, Var. A. 



From Colorado, a very small percentage of the butterflies taken by Mr. Mead 

 show a mingling of the characters of Keeioaydin and Ariadne, but nearest the 

 former. (Var. B. Fig. 6.) The orange is limited on primaries to a patch on inner 

 maro-in, and the under side of secondaries is much dusted. Mr. Mead, comment- 

 ino- on Mr. Boll's paper, writes, " I doubt if the form Ariadne occurs at all in 

 northern Colorado, where the winters are severe. I met with Keewaydin and 

 Eurytheme, in Colorado, in about equal numbers, from first of June to last of 

 Auo-ust. when cold weather set in. The nights were cold most of the time, cer- 

 tainly often at the freezing point, during June and August, and by 10th Septem- 

 ber, the whole South Park was covered with snow. Keewaydin was as abundant 

 at the last of the season as at the first. Ariadne I have only found in Yo 

 Semite Valley, California, where it was rather alnmdant about the middle of 

 October, in company with Keeioaydin and a few Eurytheme. The temperature 

 was then moderately cold, and it was at the close of the dry summer season." 

 Examples of the form Eurytheme from northern Colorado have not the intensity 

 of color and the iridescence of those from Texas, but among the butterflies col- 

 lected in southern Colorado, in 1877, by Mr. Morrison, are some Eurytheme 

 quite equaling anything seen from Texas in these respects. 



Mr. Henry Edwards says of these forms, in the paper referred to : " Eurytheme 

 is abundant in clover ami allalfix fields from Jidy to September, the richest and 

 most deeply colored individuals occurring latest in the season. It is rare in the 

 mountains, while Keewaydin is abundant at even very considerable elevations. 

 Keeioaydin is the commonest butterfly of California, appearing in April or early 

 May and continuing through the summer. I have taken it from San Diego in 

 southern California to Vancouver's Island. Ariadne is a local and early species, 

 of which there is a second brood. In the first warm days of February many 

 specimens of Ariadne, entirely fresh, have been taken by me on the hills near 



