TWENTY-FIRST REPORT OF STATE ENTOMOLOGIST 



23 



less beneficial. A widespread increase of the larvae of the painted lady butterfly 

 was noted this season and this voracious worm made life difficult for Canadian 

 thistles. Instances were noted this season where these worms migrated long dis- 

 tances through grain or pea fields without injuring the crop but cleaning out the 

 Canadian thistles. 



WHEAT 



Common Name 

 Grasshoppers 



Wheat stem sawfly 



Western wheat- 

 stem maggot 



Western wheat- 

 stem maggot 



Western wheat- 

 stem maggot 



Mormon cricket 



Wire worms 



Cutworms 



Army cutworm 



Scientific Name 

 Several species 



C( i>hus cinctus Norton 



Hylemyia cerealis Gillette 



Anabrus simpler Hald. 



Elateridae 



Noctuidae 



Euxoa pallipennis Smith 

 Chorizagrotis auxiliaris Grote 



Locality 



Dillon 



Novary 



Gilman 



Columbus 



Ashland 



Big Timber 



Poison 



Havre 



Havre 



Wibaux 



Alma 



Conrad 



Glasgow 



Choteau 

 Richey 



Date 



1925 1926 



Jan. 6 



Jan. 27 



^eb. 3 



June 4 



June 6 



June 13 



July 23 



Aug. 31 



May 9 

 Oct. 10 



Mar. 3 



Mar. 21 



Aug. 25 



May 13 



July 30 



