ME, A. G. BUTLER ON THE SPHINGIDJE. 521 



15. Hemaris alternata. 



Scsia alternata, Butler, Ann. & Mag. Nat. Hist. ser. 4, vol. xiv. p. 366 (Nov. 1874). 



Hakodadi(TOf<%). Type, B.M. 



16. Hemaris axillaris. 



Sesia axillaris, Grote and Robinson, Trans. Am. Ent. Soc. ii. p. 180 (1868). 

 Hemaris axillaris, Grote, Bull. Buff. Soc. Nat. Sci. p. 6, pi. 1. fig. 9 (1873). 

 Sesia grotei, Butler, Ann. & Mag. Nat. Hist. ser. 4, vol. xiv. p. 365 (1874). 



Texas {Belfragc). B.M. 



17. Hemaris marginalis. 



£ , Hemaris marginalis, Grote, Bull. Buff. Soc. Nat. Sci. p. 6, pi. 1. fig. 10 (1873). 

 Michigan (Strecker). 



Section H^emorrhagia, Grote 1 . 



18. Hemaris thysbe. 



Sphinx thysbe, Fabricius, Syst. Ent. p. 548 (1775). 



Sesia thysbe, Fabricius, Mant. Ins. i. p. 99 (1787). 



Hannorrhagia thysbe, Grote aud Robinson, Proc. Ent. Soc. Phil. vol. v. p. 174 (1865). 



Sphinx pelasgus, Cramer, Pap. Exot. iii. p. 93, pi. 248. fig. B (1782). 



Sesia pelasgus, Harris, Cat. N.A. Spbing., Sill. Journ. xxxvi. p. 308 (1839). 



Sesia cimbiciformis, Stephens, 111. Brit. Ent. Haust. vol. i. p. 135 (1828). 



Massachusetts (Doubleday) ; United States {Milne). B.M. 



19. Hemaris ruficaudis. 



S« ruficaudis, Kirby, Faun. Bor.-Am. vol. iv. p. 303 (1837). 



Hamorrhagia ruficaudis, Grote and Robinson, Proc. Ent. Soc. Phil. vol. v. p. 175 (1865). 



Canada West {Bush) ; United States. RM - 



This species has been much discussed by Messrs. Grote and Robinson, who make the 

 following statement (Proc. Ent. Soc. Phil. v. p. 175) :-» Kirby's description presents too 

 many points of difference with H. gracilis to allow us to refer that species as intended, 

 while Mr. Walker evidently describes our species as intended by Kirby." Now although 

 Walker included one example of//, gracilis with our examples of // mjicamhs it is im- 

 possible to say that he « evidently describes" that specimen. I believe myself that the 

 Walkerian type (registered "United States") is referable to the present spec.es. It 

 might be considered the American representative of H. fucifornm; but it is in some 

 respects more nearly allied to Hcemorrhagia floridensis of Grote and Robinson. 



This may, perhaps, he a genus, the species being more densely scaled than in Uanaris, and having conse- 

 .p.ently a somewhat different aspect , on the whole, however, I prefer to regard it for the presents a sccUo,, 



