130 THE CANADIAN ENTOMOLOGIST. 



Genus Hemaris Dalman. 



1. Palpalis Grote. California. 



2. Thetis Boisd. California. 



3. Cynoglossum Hy. Ed. — 



4. Rubens Hy. Ed. — 



5. Senta St reck. — 



6. Aethra Streck. — 



7. Tenuis Grote. Can., N. Y. 



Ftanosa Streck. 



8. Dififinis Boisd. N. Y., southward. 



9. Marginalis Grote. Ohio, south and west. 



10. Axillaris G. &= R. Texas to 111. 



Grotei Butl. 



11. Metathetis ^2^//. i — 



(Subgenus Chamcesesia Gr.) 



12. Gracilis G. &- R. Maine; N. Y. 



(Subgenus HcB?norrhagia G. & R.) 



13. Thysbe Fabr. Can., southward. 



Pelasgus Cram. 

 dim var. Uniformis G. 6^ R. 

 (?) var. mill. Buffaloensis Gr. 

 (?) var. maj. Floridensis G. 6^ R. 



14. Fuscicaudis Bosid. Georgia. 



Genus Aellopos Hiibn. 



15. Titan Cram. Florida, northward. 



Atmulosum Swains. 

 Balteata Kirtl. 



16. Tantalus Lifui. Florida, northward. 



I, How many of these eleven species, belonging to the typical group of Hemaris, 

 are really distinct, it is difficult to say, and there must be careful breeding from the egg 

 to decide. In collections Tenuis is usually labeled Diffittis, but the latter, from Abbot's 

 and Boisduval's figures, differs in several points. Since Mr. Hulst has shown that 

 Unifortnis is only a dimorphic form of Thysbe, the value of the terminal band of prinj- 

 aries as a specific character becomes doubtful. 



