220 



Canadian Buiterjlies. 



raerous in the new world than in the old, but the differotice is by 

 no means considerable. In tbo former, Brazil alone produces be- 

 tween forty and fifty species ; and in the latter, the greatest num- 

 ber occur in the islands of tlie Indian Archipelago, which is also 

 the natural country of the magnificent Ornithoptera, (another 

 genus of the Papilionidfe.) The continental parts of India, China, 

 Java, <fec., likewise possess many fine species, and a few are found 

 in New Holland. Europe is exceedingly poor in insects of this 

 group — only three or four species being indigenous, of which but 

 one is found in England. Boisduval describes twelve species as 

 inhabiting North i\.merica. They all have the hinder wings 

 tailed, excepting P. Polydamas. Only two species, we believe, 

 occur in the Canada?, viz., P. Asterias and P. Turnus. We are 

 not aware that P. Troilus^ Glaucus, Ccdckas, or Pkilenor mhahit 

 any of these Provinces, though it is not unliKely that the first at 

 least occurs in some of the more southeni portions, as it is included 

 iu lists of insects inhabiting Massachusetts. Our two species are 

 very readily distinguished from eacli other, not only in the Imago, 

 but also in the Larva, as they are of a different shape, as well as 

 ornamented in a very different manner. 



Spectes ].— PAPILTO ASTERIAS. 



Butterfly. 



Black Swallow-tailed 



I^lato iii., fia;. 2, mnh ; fig. 0, female. 





^MMVlU illjWk 



a. The Caterpillar, b. The Chrysaliis. 



Clerc . I;on3s, t. xxxiii, fig. 3, 4 ; Holmia;, \l5l-\lQi. 

 P. Astprkts, Fabricin-^, l.ntom. Syit, Em., t. i.i., pars 1, p. 6, n. 



