96 Annals Entomological Society of America [Vol. XV, 



We find it utterly impossible to agree with the reasoning of Roths- 

 child and Jordan (Rev. Sphing, I, 438) regarding Hemaris. Opinion 10 

 of the International Rules deals with just such cases, and permits the 

 use of Hemaris in place of Hcemorrhagia. 



Sphinx Linn. Logotype Sphinx eupJiorbice Linn. 



1758. Linnaeus. Syst. Nat. Ed. X, 489, includes all hawk-moths. 

 1810. Latreille, Consid. Gen. 440, cites euphorhicB as type. 

 1820-21. Swainson, Zool. 111. (1), II, 81, cites convolvuli as type. 

 1828. Curtis, Brit. Ent. Lep. I, 195, cites Hguslri as type. 



1873. Grote, Bull. Buff. Soc. Nat. Sci. I, 25, follows Curtis. 

 1892. Kirby, Cat. Lep. Het. I, 692, also designates Hguslri. 

 1903. Rothschild and Jordan, Rev. Sphing. I, 313, cite ocellata. 



1917. Barnes and McDunnough, Check List 24, apply to species now placed 

 in Hyloicus, without any explanation. 



Latreille's fixation, in spite of the fact that it does not agree with 

 subsequent usage, must be regarded as the first valid type fixation. 

 With eiiphorbice as type the genus takes the place of Celerio, type 

 Sphinx gallii Roth. 



SATURNIID^. 



Samia Hbn. Logotype Phalaena cynthia Dm. 



1820. Huebner, Verz. bek. Schmett. 156, cynthia, cecropia, promethea. 

 1855. Walker, List. Lep. Ins. B. M. V, 1222, uses for cecropia, promethea, 



and others. 

 1865. Grote, Proc. Soc. Phil. V, 228, cites cynthia as type. 



1874. Id; Proc. Am. Phil. Soc. XIV, 258, under Philosamia, mentions Walker's 

 use of the genus and cites cecropia as type. 



1886. Smith, Proc. U. S. N. M. IX, 416, uses for cynthia alone. • 

 1892. Kirby, Cat. Lep. Het. I, 750, cites cecropia as type. 



Philosamia Grt. Logotype Phalaefia cynthia Dru. 



1874. Grote, Proc. Am. Phil. Soc. XIV, 258, cynthia designated type. 

 1892. Kirby, Cat. Lep. Het. I, 748, cites walkeri as type. 

 1912. Packard, Mon. Bomb. Moths. N. A. Ill, 239. 



Walker's action in 1855 was in no sense a restriction so far as the 

 selection of a type is concerned, and Grote 's first designation of cynthia 

 is therefore valid and his later action in specifying cecropia as type 

 ultra vires. In Packard's Monograph Philosamia is used for cynthia and 

 allied species, with Samia quoted in synonymy. Under Samia, used 

 for cecropia and allies, the references are by the editors, so it would 

 seem that Packard recognized the use we make of the genus as correct. 



Platysamia Grt. Logotype Bomhyx cecropia Linn. 



1865. Grote, Proc. Ent. Soc. Phil. V, 228; cecropia, Columbia, califor?iica. 

 1874. Id., Proc. Am. Ent. Phil. Soc. XIV, 258, under Philosamia, says that 



this genus should fall before Samia. 

 1912. Cockerell, in Packard's Mon. Bomb. Moths N. A. Ill, 211, follows 



Grote's action of 1874. 



It seems that no type has ever been specified for Platysamia, so we 

 select cecropia. The three species originally included are congeneric, 

 so there can be no mistaken application of the genus, which takes the 

 place of Samia as commonly used. 



