59 



are mure particularly associated with the respective families 

 of the Lcpidoptera of our North American fauna. 



As to English names for the American species of Hawk 

 Moths, several have been suggested which I have not referred 

 to here. I, myself, have used the following common names : 

 the Early Bee Hawk, for Lepisesia flavofasciata; the Blue 

 and Green Hawk, for Argons labruscae ; the Particolored Hawk, 

 tor Ampelophaga versicolor: the Wandering Hawk, for Dilo- 

 ello. 



Any approach of the internal feeding Cossinae to the 

 Hawk Moths is, I think, unwarranted. In considering the 

 Sphingidae as a distinct Family, equivalent to the Bonilycidae 

 and Noctuidae, special studies, such as I have here attempted, 

 must decide as to the rank of the component groups and 

 this on similar considerations as influence our separation of 

 the Family itself. In this action, the definitions of the elder 

 Agassiz must be held steadily in view and we must not 

 wholly depend upon a generic class of characters, as would 

 seem to have been the course of that most distinguished of 

 Entomologists-Lederer. 



On the whole the Subfamilies of Sphingidae may be 

 regarded as affording two series, the first embracing the 

 Macroglossinae, Choerocampinae and Sm&nnfhinae, the second 

 the Spliinyhwe and Achcrontinae, the members of each series 

 approaching each other more nearly than the opposed series. 

 Nevertheless the Eyed Hawks afford a synthetic type, the 

 family characters recalling the Smerintkinae appearing in all 

 the groups. So the Bee Hawks approach through Ikidamia 

 and the genera with angulated wings, the Elephant Hawks 

 through Amlnlyx, the Typical Hawks through Ellema. The 

 pattern and colors, outline, habit and general structure, so 

 difficult to properly consider in a linear arrangement, are 

 best appreciated under the present classification. The short 

 antennae of the Death's Head Hawk Moths (Ach&rontinae) 

 seem to me a low character; the pattern and colors, the 

 ringed abdomen, the contrast between primaries and secon- 

 daries ally this Old World group with the Typical Hawk 



