possible, then, that H. fnscicandis is only a form of H. thysbe; but 

 I have no authentic specimens of the former species for comparison 

 The following is a table of our species of Haemorrhagia : 



Group I. {Chamaesesia.) 



Discal cell of primaries free. Vitreous field of secondaries crossed by five 

 nervules. Sp. 1. 



Thorax beneath, with lateral red shades ; hind Tvings beneath with a pale 

 shade at anal angle, 1. Haem. gracilisj G. & R. 



(iROUP II. {HaemorrJiagia.) 



Discal cell of primaries crossed by a longitudinal bar of scales, appearing as a 

 prolongation of vein 5. Vitreous field of secondaries crossed by six nervules. 

 Sp. 2 to 6. 



A. Inner edge of external marginal band of the fore wings not dentate on 

 the interspaces. Sp. 3 to 4. 



Size small. (Expanse 1.65 to 1.70 inch) 3. Haem. Buffaloensis, G. & R. 



Size moderate. (Expanse 1.80 to 3.30 inch). 3. Haem. uniformisj Grote. 

 Size large. (Expanse, $ , 3.40 inch) 4. Haem. FloridensiSj G. & R. 



B. Inner edge of external marginal band of the fore wings dentate on the 

 interspaces. Sp. 5 and 6. 



Abdomen with the pre-anal segments olivaceous, 5. Haem. Thysbe^ {G. & R.) 

 Abdomen terminally entirely deep red, 6. Haem. fuscicau(liSj(i?MS(?.) 



Y. Heinemann, in his " Schmetterlinge Deutschlands unci der 

 Schweiz," p. 142, says, that the discal cell of the primaries is crossed 

 by a prolongation of vein 5, in the European Hemaris bombyliformis. 

 On examination I find, that in all our species, as well as in the 

 European, where the cell of the primaries is not free, it is crossed 

 by a line of scales continuous with vein 5, but the vein itself is 

 thrown off as usual ; it is not prolonged inwardly, as stated by the 

 German Entomologist. 



