64 



BULLETIN 862, U. S. DEPARTMENT OF AGRICULTURE. 



Table II. — Items of animal food identified in the stomachs of the ducks treated in this 

 bulletin and number of stomachs in which found — Continued. 



Kind of food. 



Gad- 

 wall. 



Bald- 

 pate. 



Green- 

 winged 

 teal. 



Blue- 

 winged 

 teal. 



Cinna- 

 mon 

 teal. 



Pin- 

 tail. 



Wood 

 duck. 





417 

 10 



255 

 12 



653 

 61 



319 

 10 



41 

 2 



790 

 31 



413 



Class Insecta— Continued. 

 Order PIPTERA— Continued. 

 Chironomidae (midges). 



2 





1 



Ceratopogon sp 









1 



1 



11 









Simuliidae. 



Simulium sp 







1 

 3 









Stratiomyidae (soldierflies). 



Unidentified larvae 







3 



7 

 1 



31 



Odontomyia sp 



2 





2 



Nemotelus sp 











1 



Tabanidae (horseflies), larvae 



1 





1 







2 





Syrphidae (flowerflies). 



4 



1 



1 



Syrphus sp 









1 











1 















1 

 1 























Muscidae. 





1 













3 



8 













Ephvdridae, (brine flies), larvae and pupae 



Scatophagidae. 



9 



21 



1 



3 



15 



1 



Order HYMENOPTERA (Ants, Bees, and 

 Wasps). 



3 





9 



1 



2 



-0 



7 





1 



Ichnetjmonoidea (Parasitic wasps). 

 Vipionidae. 















1 



Braconidae. 































1 



Ichneumonidae. 















1 











1 







1 















1 





1 

























1 















1 



1 



Chalcidoidea. 

 Chalcididae. 











1 





1 















Seephoidea. 













2 



Scelionidae. 



1 















