BLUE GROSBEAK’S FOOD ITEMIZED. 85 
Among the important insect pests eaten by the blue grosbeak are 
grasshoppers, weevils, the purslane sphinx, and the cotton cutworm. 
The species deserves protection for its destruction of grasshoppers 
alone, and when its food habits are considered in their entirety the 
showing unquestionably is greatly in favor of the bird. 
LIST OF SEEDS, FRUITS, AND INVERTEBRATES EATEN BY THE BLUE GROSBEAK. 
GRAIN AND FORAGE PLANTS. 
Corn (Zea mays). 
Oats (Avena sativa). 
Wheat (Triticum vulgare). 
Alfalfa (Medicago sativa). 
WEEDS AND WILD FRUIT. 
Crab-grass (Panicum sp.). 
Yellow foxtail (Chetochloa glauca.) 
Green foxtail (Chetochloa viridis). 
Wild rice (Zizania aquatica). 
Rush grass (Sporobolus sp.). 
Smartweed (Polygonum sp.). 
Blackberry (Rubus sp.). 
COLEOPTERA. 
Ground-beetles (Carabidee). 
Click-beetles (Elateride).' 
Leaf-beetles (Chrysomelide). 
Bronzy wood-borers (Buprestide). 
Lamellicorn beetles (Scarabeide) : 
Aphodius fimetarius. 
Lachnosterna sp. 
Long-horned beetles (Cerambycids) : 
Hippopsis lemniscata. 
Scarred snout-beetles (Otiorhynchide). 
True snout-beetles (Curculionidz). 
Bill-bugs (Calandride) : 
Rhodobenus 13-punctatus. 
HEMIPTERA. 
Cicadas (Cicadide) : 
Cicada sp. 
Tree-hoppers (Membracide). 
cao 
Squash-bugs (Coreide). 
Stink-bugs (Pentatomide). 
ORTHOPTERA. 
Short-horned grasshoppers (Acridi- 
Long-horned grasshoppers (Locus- 
ida) : tide). 
Hippiscus sp. Crickets (Gryllidee) : 
Melanoplus atlanis. Gryllus sp. 
LEPIDOPTERA. 
Hawk-moths (Sphingide) : 
Deilephila lineata, 
Owlet-moths (Noctuide) : 
Prodenia ornithogalli. 
OTHER INSECTS. 
Smooth-headed ants (Formicide). 
Sawflies (Tenthredinide). 
Robber flies (Asilide). 
Tachina flies (Tachinidae). 
OTHER INVERTEBRATES. 
Spiders (Araneida). 
| Snails (Gastropoda). 
