THE CANADIAN ENTOxMOLOGlST. 383 



front of the antealar sinus ; lateral thoracic 

 bands more than 1.5 mm. broad, the first band 

 deeply sinuate in front, the second more or less 

 triangular. 

 M. Hind wing 43-48 mm.; no antehumeral 

 spot j upper end of first lateral thoracic 

 band not bent forwards ; spots between 

 first and second bands small and incon- 

 spicuous ; superior appendages expand- 

 ing almost sym.metrically from the base ; 

 the inner margin in dorsal view not 

 sinuate, apices rounded, normally with- 

 out a terminal spine ; outer margin in 

 profile curved or bent upwards, both 

 cephalad and caudad ; superior carina 

 rather strongly elevated in the apical 

 fourth, bearing 6 or 8 well-marked 



denticles 11. eremita Scudd. 



MM. Hind wing 39-42 mm.; a large triangular 

 antehumeral spot immediately in front 

 of the inferior part of the first lateral 

 thoracic band, the upper and narrower 

 end of which is bent sharply forward ; 

 spots. between first and second lateral 

 bands unusually large ; superior ap- 

 pendages expanding unsymmetrically, 

 the inner margin being distinctly 



sinuate, the distal three-fifths equal, 

 apices tapering rather abruptly and 

 terminating in a well-marked slightly 

 decurved spine ; outer margin in profile 

 nearly straight throughout ; superior 

 carina slightly elevated apically, bearing 

 3 to 5 small denticles. 12. clepsydra Say. 

 HH. No black line on the fronto-nasal suture. 



N. First lateral thoracic band not tapering regularly 



dorsad, its anterior margin distinctly, usually strongly, 



sinuate ; PD always present on abdominal seg. 



10 ; superior appendages without a prominent 



inferior basal tubercle. 



