228 TRUE TALES OF THE INSECTS. 



in the greater number of forms. The representation in 

 the Old World is the more brilliant of the two, owing to 

 the number of bright-coloured Chcerocampinae of the 

 Himalayan region. In respect of colour, America has 

 the advantage, however, as regards the Smerinthinae ; 

 both Calasymbolus and Paonias, for example, are ex- 

 tremely beautiful. North America is indeed peculiarly 

 rich in species belonging to the more typical ocellated 

 group; but the less typical unocellated genera are not 

 well represented. 



Sphingida have their Metropolis in the Tropics. 



The habits of the Sphingidae, it need hardly be said, 

 render them quite unsuited to cold, rigorous climates. 

 It is in the tropics, where they revel in warm sunshine 

 and a luxuriant flora, that they have their metropolis 

 where they reach the highest development in kinds and 

 numbers. The family is not represented in Iceland, nor 

 in Labrador, in all probability ; but they occur in Van- 

 couver and in Newfoundland, and in Upper Canada the 

 majority of those inhabiting the Middle States may be 

 found. Hemaris diffinis extends further north than 

 most other species. 



