TWENTY-NINTH REPORT OF THE STATE ENTOMOLOGIST 25 



Figure 7. Injury to bean seedlings caused by the seed corn maggot. 



mink maggots.— On June 16, 1941, live maggots were re- 

 covered from mink pups in Helena by the Livestock Sanitary Board, 

 and transmitted to this office for examination. On the 18th two 

 of them were placed in moist sand. These pupated and emerged on 

 July 1 and 2, and were identified as flesh flies belonging to the 

 species Wohlfahrtia meigeni (Schin.). This and the related eastern 

 species (W. vigil) not uncommonly attack living animals such as 

 foxes, rabbits, dogs, and mink, and there are a good many records 

 of vigil attacking humans, especially small children. In the case 

 at hand the maggots were apparently the cause of the death of the 

 mink pups. 



Wohlfahrtia meigeni was first obtained for the Montana Agri- 

 cultural Experiment Station when specimens were collected on 

 May 29th, 1907, in Bozeman. Since then other specimens have been 

 taken at Helena and Rapelje, and it probably enjoys a state-wide 

 distribution. 



cabbage maggot (Hylemia brassicae (Bouche) ) on turnips. 

 Early turnips grown in the Billings area for table use were dis- 

 figured in the spring of 1942 by larval tunnels of the cabbage 

 maggot. Adult flies emerged June 25-30 from mature larvae and 



