The Regulative Action of Birds upon Insect Oscillations. 
29 
HIRUNDINID^E. 
Petrochelidon lunifrons : Aphodius inquinatus. 
FRINGILLIDiE. 
Coturniculus passerinus : Setaria. 
Spizella domestica : Anisopteryx vernata, Anomala binotata, 
Baris, Setaria, Panicum. 
iSpizella agrestis : Anisopteryx vernata, Onthophagus, Aphodius 
A. inquinatus, Monocrepidius, Baris, Sphenophorus. 
tSpiza americana : Helix, Agapestemon, Anisopteryx vernata, 
Anisodactylus, Ips fasciatus, Aphodius, A. inquinatus, 
Anomala binotata, Sphenophorus, Wheat, Setaria. 
Zamelodia ludoviciana : Anisopteryx vernata, Anomala bi- 
notata. 
Passerina cyanea : Aphidius, Anisopteryx vernata, Onthoph- 
agus, Aphodius, Anomala binotata, Monocrepidius, Baris, 
Setaria. 
ICTERIDiE. 
Molothrus ater : Aphodius, Dibolia aerea, Polygonum, Corn. 
Agelceus phoeniceus : Nephelodes violans, Anisopteryx vernata, 
Anoma’a binotata, Tanymecus confertus, Polygonum, Wheat. 
Icterus galhula : Anisopteryx vernata, Anomala binotata, Phy- 
matodes variabilis, Psenocerus supernotatus. 
Icterus spurius : Camponotus, Anisopteryx vernata. 
Quiscalus purpureus mneus : Calosoma calidum, Dorcus paral- 
lels, Crawfish, Corn. 
TYEANNIDiE. 
Tyrannus carolinensis : Anisopteryx vernata, Aphodius in- 
quinatus, Anomala, A. binotata, Melanotus. 
Contopus virens : Ips fasciatus, Aphodius, A. inquinatus. 
Empidonax trailli : Anisopteryx vernata, Anomala. 
Empidonax flaviventris : Aphodius, Anomala binotata, Pseno- 
cerus supernotatus, Hymenarcys. 
ctjctjlid^:. 
Goccyzus erythrophthalmus : Anisopteryx vernata, Anomala. 
PICID.E. 
Melanerpes erythrocephalus : Camponotus, Anisopteryx ver- 
nata, Calosoma calidum, Scarites substriatus, Canthon hud- 
sonias, Anomala binotata, Melanotus, Corn. 
COLUMBIDiE. 
Zenaidura carolinensis : Corn. 
PERDICIDiE. 
Ortyx virginiana : Chrysomela suturalis, Polygonum, Setaria, 
Corn. 
