41 



Papilio Cresphoxtes. 



In our report for 1878, reference was made to this handsome swallow-tail butterfly, 

 and a figure given of it, but as this report may not be available to many of our readers, 

 we shall reproduce it here (see fig. 19). Since 1878 it has become more common, and has 



been reared from the larva by collectors in Hamilton, as well as by myself. They have 

 been found chiefly on prickly ash (Xanthoxyhtm fraxineum), and on Dictamnus fraxi. ella. 

 This year I found the caterpillars, nearly full grown, in June, which shortly entered the 

 chrysalis state, and produced the butterflies in about a fortnight afterwards. I have also 

 taken the full-grown larvae late in the fall, which passed the winter in the chrysalis state, 

 from which facts the inference may be fairly drawn that this butterfly is double-brooded in 

 Ontario. 



The wings of this stately insect are black, streaked and spotted with yellow, as shown 

 in the figure. The caterpillar is a very singular looking creature: it is brown, with large, 



