THE CANADIAN ENTOMOLOGIST. 389 



of the lower and broader 

 part of the first lateral band, 

 the upper end of the latter 

 narrow and sharply bent 

 forward ; a large pale spot, 

 including the spiracle, and 

 another above 



it 12. clepsydra Say. 



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



N. Later;al thoracic green or yellowish-green 

 (rarely blue) not margined with black, 

 the anterior margin of the first band 

 distinctly sinuate, the second band 

 elongate triangular ; PD on 2-5 at 

 least I mm. long ; ovipositor 3 mm. 

 long ; tips of genital valves not elevated. 

 O. First lateral thoracic band with the 

 anterior margin almost rectan- 

 gularly sinuate, its upper end 

 giving off caudad a very narrow 

 spur; posterior (postero-inferior) 

 margin of second band generally 

 ' curved ventrad at the upper end ; 

 appendages usually 5-6 mm. long 

 (rarely 6.7 



mm) 13. canadensis, n. sp. 



00. First lateral thoracic band with 

 the anterior margin obtusangu- 

 larly sinuate, its upper end giving 

 off caudad a rather broad spur ; 

 posterior margin of second lateral 

 band straight ; appendages 7 mm. 



long 14. verticalis Hagen. 



NN. Lateral thoracic bands bright yellow, 

 margined with black or dark brown, 

 about I mm broad, straight, the first 

 band expanded a little below, but not 

 at all sinuate, the second band with the 

 margins subparallel ; abdominal spots 



