FOOD HABITS OP THE SWALLOWS. 



27 



Summary. — In the food of the rough-winged swallow the useful 

 elements are as usual in the minority. In this case they consist chiefly 

 of parasitic Hymenoptera, the destruction of which is not a matter 

 of great importance. 



Following is a list of insects identified in stomachs of rough- 

 winged swallows and the number of stomachs in which found : 



MECOPTEEA. 



Panorpa sp 1 



HEMIPTEEA. 



Entylia concisa 3 



Thyreocoris nitiduloides 5 



Thyreocoris pulicaria 1 



Ophiderma sp 1 



Oncometopia undata 4 



Corizus sp 3 



Nobis sp 1 



COLEOPTERA. 



Calosoma calldum 



BemMdium versicolor 



Hydroporus modestus 



Helophorus lineatus 



Cercyon sp 



Homalota sp 



A leochara bimaculata 



Philonthus sp 



Cryptobium sp 



Oxytelus rugosus 



Bledius sp 



Olophrum obtectum 



Phalacrus politus 



Hippodamia 13-punctata 



Scymnus loewii ' 



TypJiocea fumata 



Ulster abbreviatus 



Bister subrotundus ' 



Ulster carolinus 



Saprinus rotundatus 



Saprinus sp 



Carpophilus dimidiatus 



EpurcBa helvola 



CryptarcJia strigata 



Cryptarcha sp 



Glischrochilus fasciatus 10 



Glischrochilus sp 2 



Limnichus nitidulus 1 



Heterocerus sp 1 



Cregya oculata 1 



coleoptera — continued. 



Onthophagus pennsylvanicus 5 



Onthophagus sp 8 



Aplwdius inquinatus 18 



Aphodius sp 18 



Diachus auratus 1 



Nodonota tristis 1 



Cerotoma caminea 5 



Cerotoma trifurcata 1 



Galerucella sagittariw 1 



Epitrix fuscula 1 



Crepidodera velutinus 1 



Chwtocnema denticulata 1 



Chcetocnema {pulicaria 1 



Chwtocnema sp 1 



Anthicus biguttulus 1 



Anthicus sp 5 



Rhipiphorus dimidiatus 1 



Phytonomus posticus 11 



Anthonomus grandis 



Orchestes vittata 



Rhinoncus pyrrhopus 



Ceutorhynchus rapw 



Boris sp 



Calandra oryza 



Sphenophorus sp 



Platypus flavicornis 



Rliyncholus sp 



Tomicus calligraphus- 



Tomicus cacographus 



Rylastes tenuis 



Hylastes exilis 



Bracliytarsus sp 



Bibio sp 



Morellia micans- 

 Tachina sp 



HYMENOPTERA. 



Andrena sp 



Lasius sp 



Formica fusca- 



