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. 



GKAIN 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 (Chwtochloa glauca.) 

 Green foxtail ( ChcetocMoa viridis ) . 

 Wild rice (Zizania aquatica). 



Rush grass (Sporobolus sp.), 

 Smartweed (Polygonum sp.). 

 Blackberry (Rubas sp.). 



COLEOPTERA. 



Ground-beetles (Carabidae). 

 Click-beetles (Elateridae). 

 Leaf -beetles (Chrysomelidse). 

 Bronzy wood-borers (Buprestidae). 

 Lamellicorn beetles (Scarabaeidae) 



Aphodius flmetarius. 



Lachnosterna sp. 



Long-horned beetles (Cerambycidae) : 



Hippopsis lemniscata. 

 Scarred snout-beetles ( Otiorhynchida? ) . 

 True snout-beetles (Curculionidse). 

 Bill-bugs (Calandridse): 



Rhodobcenus 13-punctatus. 



HEMIPTERA. 



Cicadas (Cicadidae) : 



Cicada sp. 

 Tree-hoppers (Membracidoe). 



Squash-bugs (Coreidae). 

 Stink-bugs (Pentatomidae), 



Short-horned grasshoppers 

 idae) : 



Hippiscus sp. 

 Melarioplus atlanis. 



ORTHOPTERA 



(Acridi 



Long-horned 



tidae). 

 Crickets (Gryllidae) 

 Gryllus sp. 



grasshoppers (Locus- 



Hawk-moths (Sphingidse) 

 Deilephila lineata. 



LEPIDOPTERA. 



Owlet-moths (Noctuidae) : 

 Proden ia ornithogalli. 



OTHER INSECTS. 



Smooth-headed ants (Formicidae). 

 Sawflies ( Tenthredinidae ) . 



Robber flies (Asilidae). 

 Tachina flies (Tachinidae). 



Spiders (Araneida), 



OTHER INVERTEBRATES. 



J Snails (Gastropoda) 



