No 17.::> SOME CANADIAN TENTHREDINOIDEA—ROHWER. 209 



Family SIRFClDJv 



Subfamily SIRKCIN^E. 

 Genus SIREX Linnaeus. 



SIREX CRESSONI Norton. 



Female, Nerepis, New Brunswick, August 18. 



In this specimen the antenna' are nineteen-jointed and the apical 

 joints are somewhat compressed. 



SIREX FLAVICORNIS Fabricius. 



Female, Hopedale, Labrador, August 1, 1908. 



Genus PAURURUS Konow. 



PAURURUS CYANEUS (Fabricius). 



Two females, St. John, New Brunswick, September '2'.\ and Octo- 

 ber 3. 



The specimen taken in October is noticeably smaller. 



ProcN.M. vol. 38—10 14 



