ON A COLLECTION OF TENTHREDINOIDEA FROM 



EASTERN CANADA. 



By S. A. Rohwer, 

 OJ ii" Bureau of Entomology, U. S. Department of Agriculture. 



The following is a report of an interesting collection of Tenthre- 

 dinoidea made mostly in the county of St. John, New Brunswick, by 

 Mr. A. Gordon Leavitt, and sent to the U. S. National Museum. All 

 the collection having been made in eastern Canada came from either 

 the Canadian or Hudsonian Life Zone, ami contains species found 

 throughout these zones. Of the 22 genera all but G are Holarctic, and 

 perhaps most of these occur in the Pahcarctic, but have not }~et been 

 recognized by European workers. 



Some of the generic names used in the following paper have not 

 been used heretofore in connection with Nearctic species, and the 

 conception of some of the genera is different from that usually held; 

 hut in all cases of inconsistency with the standard works an effort has 

 been made to show that the present view is correct. All species 

 referred to the following genera are believed to be congeneric with the 

 type of each genus. 



Family TENTHREDINTD.K. 



Subfamily ^V R< 1 INJE. 

 Genus ARGE Schrank. 

 ARGE BOREALIS (Kirby). 



Female, Xerepis, New Brunswick, July 22. 



This specimen is somewhat paler than the type, but the structure 

 is as described in my notes from the type in the British Museum. 



ARGE MACLEAYI (Leach . 



Female, Xerepis, New Brunswick, July 24. 



Under tliis name there seems to be a number of distinct forms, but 

 this specimen is typical. 



Proceedings U. S. National Museum, Vol. 38-N x 1739. 



197 



