82 CATALOGUE OF 



4. Sesia ruficaudis. 



Cervina ; caput apud antenna? et subtus albidum, fascia antica 

 fusca ; abdomen rubrum, basi cervinum, marginibus posticis 

 nigris, maeulis later alibus testaceis ; fasciculus apicalis rufus, 

 pilis lateralibus nigris ; ala? limpida?, basi marginibus et an- 

 ticarum apicibus late rubris, antica? striga discali nigricante. 



Var. /3. Abdomen fascia postica lata interrupta cervina. 



Sesia ruficaudis, Kirby, Faun. Bor. Amer. iv. 303. 



This is probably a mere variety of S. Thysbe. 



Fawn-colour. Head whitish about the antennae and beneath, 

 with a brown band in front. Pectus testaceous. Abdomen deep 

 red, fawn-colour at the base, with testaceous spots along each side ; 

 hind borders of the segments black; apical tuft red, with some 

 black hairs on each side. Wings limpid, deep red at the base, and 

 with broad deep red borders. Fore wings deep red at the tips, and 

 with a blackish discal streak. Length of the body 9 — 12 lines ; of 

 the wings 18 — 24 lines. 



a. United States. 



b. Trenton Falls, New York. Presented by E. Doubleday, Esq. 



c. Orilla, West Canada. From Mr. Bush's collection. 



5. Sesia Thysbe. 



Cervina ; caput subtus et pectus testacea ; caput fascia antica 

 nigra ; abdomen triente media vittaque posteriore rubris, ma- 

 eulis lateralibus testaceis,- fasciculus apicalis rufus, triente 

 laterali utrinque supra nigra ; ala limpid&, basi margini- 

 busque late rubris, antica? basi cervino suffusa?, apicibus stri- 

 gaque discali rubris. 



Sphinx Thysbe, Fabr. Syst. Ent. 548, 4; Sp. Ins. ii. 155, 10; 



Mant. Ins. ii. 99, 10 ; Gmel. ed. Sijst. Nat. i. 5, 2388, 100. 

 Sesia Thysbe, Fabr. Ent. Syst. iii. 1, 301, 10. 

 Sphinx Pelasgus, Cram. Pap. Exot. iii. 93, pi. 248, f. B. 

 Sesia Pelasgus, Harris, Amer. Journ. Sci. xxxvi. 

 Sesia Cimbiciformis, Steph. III. Brit. Ent. Haust. i. 135, 3. 



o, b. Massachusetts. Presented by E. Doubleday, Esq. 

 c, d. United States. From Mr. Milne's collection. 



