FOOD HABITS OF 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 : 
MECOPTERA. 
Panorpa sp 1 
HEMIPTERA. 
Entylio concisa 3 
Thyreocoris nitiduloides 5 
Thyreocoris pulicaria 1 
OpJiiderma sp 1 
Oncometopia undata 4 
Corizus sp : 3 
Nobis sp 1 
COLEOPTERA. 
Colosomo calidum 
Bembidium versicolor. 
Hydroporus modestus. 
Helophorus lineotus — 
Cercyon sp 
Homalota sp 
Aleocharo bimaculata. 
1 
1 
2 
4 
1 
1 
1 
Philonthus sp 5 
Cryptohium sp 
Oxytelus rugosus 
Hledius sp : 
)lophrum obtectum 
Phalacrus politus 
T _ippodamia 13-punctata 
oymnus loewii 
i'yphoaza fumata 
Ulster abbreviatus 
Bister subrotundus 
Hister carolinus 
Saprinus rotundatus 
Saprinus sp 
Carpophilus dimidiatus 
Epurcea helvola 
Cryptarcha strigota 
Cryptarcha sp 
Qlischrochilus fasciatus 
Glischrochilus sp 
Limnichus nitidulus 
Heterocerus sp 
Cregya oculato 
coleoptera — continued. 
Onthophagus pennsylvanicus 5 
Onthophagus sp 8 
Apliodius inquinatus 18 
Aphodius sp 18 
Diachus auratus 1 
Nodonota tristis 1 
Cerotoma caminea 1 5 
Cerotoma, trifurcata 1 
Galerucella sagittarice 1 
Epitrix fuscula 1 
Crepidodera velutinus 1 
Chcetocnema denticulata 1 
Chcetocnema ^pulicaria 1 
Chwtocnemai sp 1 
Anthicus biguttulus 1 
Anthicus sp 5 
Rhipiphorus dimidiatus 1 
Phytonomus posticus 11 
Anthonomus grandis 4 
Orchestes vittata 2 
Rhinoncus pyrrhopus 1 
Ceutorhynchus rapce ' 3 
Boris sp 1 
Colandra oryza 1 
Splienophorus sp 2 
Platypus flavicomis 1 
Rhyncholus sp 1 
Tomicus calligrophus 3 
Tomicus cacographus 1 
Bylostes tenuis 1 
Hylostes exilis 1 
Brachytarsus sp 1 
DIPTERA. 
Bibio sp 
Morellia rnicans. 
Tachina sp 
HYMENOPTERA. 
Andrena sp 
Lasius sp 
Formica fusco. 
