NORTH AMKRICAN LEPIDOPTERA. 69 



by him. No reasons are given for the sequence, and only two 

 large divisions are adopted : the 1st, broad winged, without anal 

 tufts containing all the genera save Pterogon and Macroglossa, which 

 form group 2, distinguished by narrow wings and tufted anal seg- 

 ment. 



Bearing date 1857, Walker, in the eighth volume of the " British 

 Museum Catalogue of Lepidoptera," gives a monograph of the 

 Sphingidse of the world. Tliis is really the first attempt at a com- 

 plete monograph, and a mine of information concerning the literature 

 of the family, whatever may be said of the work in other respects. 



The term Sphingidw is used to include the Seme, and the whole 

 series is divided into two tribes, viz. : Sesii and Sphingii. The Sesii 

 contain two fomilies : Stygiidce and jEgeriidce, the latter family in- 

 cluding the genera Thyretes, Thyris and Ama, usually separated as 

 a distinct family. 



The Sphingii are included in one family, Spldngidce, and the best 

 way to give an idea of the classification adopted is to reproduce the 

 iSynopsis of Genera, premising that the translation (from the Latin) 

 is a free one, and that generic synonyms are omitted here. 



Abdomeu tufted at apex. 



Anterior vviags with the outer marfjiii entire. 



Wings hyaline Sesia. 



Wings opaque, with scaly clothing ^laoroglossa. 



Anterior wings with the outer margin excised. 

 Thorax not crested. 



Antennse clavate Proserpiims. 



Antennie not clavate. 



Primaries without silvery spots. 



Head not conic Tliyreus. 



Head conic. 



Primaries with outer margin hardly excised. 



Wings with outer margin hardly dentate I*erigoiiia. 



Wings with outer margin moderately dent;ite Toiiiiiora. 



Primaries with outer margin moderately excised Lopliura. 



Primaries with silvered spots C'allioiiiiiia. 



Thorax crested Euyo. 



Abdomen untufted at apex. 

 Wings very long. 



Abdomen slender, gracile Alllbulyx. 



Abdomen stout, thick Cal.yiiiuia. 



Wings not very long. 



Tongue long, or very long. 



Abdomen long, or moderately long. 



Abdomen with silvery spots ISaNiotliia. 



Abdomeu with silvery, golden, or pallid stripes. 



