THE CANADIAN ENTOMOLOGIST. 25 



I then requested Dr. Wittfeld to bottle leaves of Passion-vine and 

 mail to me pack<;d in a box, which he did. This was in October, and the 

 package was lo days on the road. Two leaves were rotten and worthless 

 for food, but still held together, and four leaves were sound. 



Therefore, it is plain that in corked bottles, or in air tight tins, eggs 

 of butterflies can be forwarded from points 8 to 12 days distant, i. e., 

 Florido. Texas, Arizona, California, Oregon, and the larvae from them 

 will probably reach their destination in good condition. 



I received several tin boxes (soda-powder boxes, and not air tight) 

 from Arizona the past season, from Mr. Doll. Three contained eggs of 

 two species of Lemonias, viz., Palmeri and Nais. They were sent on 

 the leaves and stems of Mesquit, on which they had been deposited, and 

 between layers of cotton wadding. As it happened, the eggs, though out 

 1 2 days, were but partly hatched when I got them, and the hatching pro- 

 ceeded. Had they hatched two or three days earlier, I should have lost 

 every caterpillar, for the leaves were dry as tinder and unfit for food. I 

 believe, as the result of several observations, that it is not well to place 

 the leaves in cotton in any case, as this seems to extract the moisture from 

 them. Even in so short a journey as from Coalburgh to Philadelp^iia, 26 

 to 30 hours, Mrs. Peart has noticed that whenever cotton was in the box 

 with leaves, the latter had suffered. 



Eggs should in no case be sent in wood or in paper boxes, as the 

 leaves dry up at once, and any larvae will .starve. I am very anxious to 

 receive eggs of any species of butterfly, especially of all Satyrids in Rocky 

 Mts. to Pacific, including species of Chionobas ; of all Argynnids and 

 Parnassians \ and if any collectors will send me these, or one or more of 

 them, corked in glass, or in air tight tin, I will pay liberally for them, or 

 exchange butterflies for them to any extent. I would gladly give twenty 

 species of butterflies for one lot of eggs which I have hitherto not had. 



5 On Irregularity of Number of Moults in Larva of Apatuka Flora. 



In Psyche, vol. 3, p. 159, I enumerated the species of butterflies 

 whose larvffi I had bred from the egg, and gave the number of moults of 

 each. One or two had but three, nearly all had four, and some had five. 

 When the species is two-brooded, and the larv^ of one brood hibernate, they 

 usually pass five moults, but in the summer brood of the same species 



