234 



THE AMERICAN ENTOMOLOGIST. 



Summary of the Food of the Bluebird. 



No. of Specimens Examined. 



KINDS OF FOOD. 



Number of Specimens and Ratios in which each Element of Food 



I. — Insecta 



1. Hymenoptera 



Formicidae 



Ichneiimonidae,. . . . 



2. Lepidopiera 



Arctiinx 



Noctuidae 



Phalsenidae 



3. Diptcra 



4. Coleoptera 



Carabidae 



Dytiscidse 



StaphylinidcE .... 



Histeridse 



Byrrhidse 



Scarabaeidae 



Aphodius 



Geotrupes 



Phyllophaga 



Euryomia 



Elateridae 



Tenebrionidae 



Telephorus 



Curculionidae 



Cerambycida; 



Tetraopes 



5. Hetniptera 



Coriscus 



Alydus 



Cydnidae 



G. Orthoptera 



Locustidae 



Gryllids 



AcrididK 



II. — Akachnida 



III. — lULID.'E 



IV. — Vegetable Food. 



Beneficial Elements 

 Injurious " 



Neutral " 



Includes 8 per 



