Pomona College Journal of Entomology 677 



In all my experiments, I have used as parents only normal colored individuals, 

 and bred the descendants the second time in a normal temperature, with the results 

 noted above. 



As I desired to iii.ikc other experiments, by breeding Junimia ehrysalids 

 in dry air, but could not obtain anj' new ones from outside, I used these just 

 described butterflies, and picked out again all normal colored males. However, 

 I had to use some females with appendices, as I had only one normal colored. 

 The chrysalides of this third generation, I put in the mirror case with much 

 light, 90 degrees warm, but this time dry air, as I had believed dry air would 

 produce small eye spots. Nevertheless, I got seven females, six of which had 

 appendices ; and sixteen males, three with appendices. In the fourth generation 

 bred in drj' air, I got sixty females, forty with appendices, five of these with 

 double eye spots; and fifty-nine males, three with appendices. Most of these 

 butterflies were somewhat lighter in color than our local form. I bred another 

 generation with the same result. Then I raised six caterpillars on a pot plant 

 in the mirror case, as dry as possible, got the chrysalis there, and bred them 

 there in 90 degrees. The result was striking, all the eye spots being reduced in 

 size. I hope to repeat this experiment again later on. 



I am also developing some most interesting results in breeding out continuous 

 generations in cool air, and these will be recounted later. 



It is now of exceeding importance that other species of the genus be bred 

 under similar widely varying conditions in order that we may possibly come to 

 understand the origin of some of the striking variations that may appear in these 

 bred specimens, and perhaps work out the relationships and phylogeny of all the 

 species more fully. Dr. Dyar expresses the opinion to me that Junonia vellida 

 of Australia is the most primitive type. in the genus. I am exceedingly anxious 

 to obtain eggs or chrvsalids of that species, or any others of the genus and shall 

 be glad to correspond with lepidopterists in any part of the world relative to 

 the matter. 



