334 THE CANADIAN ENTOMOLOGIST. 



O. Larger and relatively stouter species (abdomen 

 49-55 mm., hind wing 43-48 mm.) ; lateral 

 thoracic bands blue, sometimes partly green, 

 the anterior margin of the first band very 

 deeply sinuate or angularly excavated ; 

 superior appendages expanding almost sym- 

 metrically from the base^ the inner margin in 

 dorsal view not sinuate, apices normally 

 rounded, not at all decurved, and without a 

 terminal spine ; superior carina rather 

 strongly elevated in the apical fourth, bearing 

 6 or 8 well-marked denticles ; a low rounded 

 subbasal inferior eminence present; hamular 

 processes directed mediad, short and broad, 

 with a slender apical 

 tubercle 11. eremita Scudd. 



00. Smaller and slenderer species (abdomen 42-45 

 mm., hind wing 39-42.5 mm.); superior 

 appendages expanding unsymmetrically from 

 the base, the inner margin in dorsal view 

 distinctly sinuate ; superior carina moderately 

 elevated, apices acute, somewhat decurved, 

 with a distinct terminal spine. 



P. Lateral thoracic bands blue or green, the 

 first generally green below, blue above, 

 its anterior margin almost rectangularly 

 sinuate ; superior carina of the superior 

 appendages with a few denticles, apices 

 rather abruptly decurved ; hamular 

 processes rather long, directed cephalad, 

 subparallel, with the tips somewhat 

 convergent ; PL typically represented 

 on abdominal segments 

 2-6 13. canadensis^ n. sp. 



PP. Lateral thoracic bands yellowish-green, 

 the anterior margin of the first obtus- 

 angularly sinuate ; superior carina of 



