FOOD HABITS OF THE SWALLOWS. 
15 
COLeoptera — continued. 
Saprinus wneicollis 2 
Raprinus lubricus 1 
Saprinus fimbriatus 1 
Saprinus sphwroides 1 
Oarpophilus dimidiatus 1 
Btelidota geminata 1 
Glischrochilus fasciatus 10 
Bryops striata 1 
Cryptohypnus obliquatus 1 
Agrilus sp : 2 
Onthophagus hecate 9 
Onthophagus tuberculifrons 2 
Onthophagus pennsylvanicus 32 
Onthophagus sp 19 
Atwnius cognatus 1 
Aphodius fimetarius 43 
Aphodius vittatus 3 
Aphodius inquinatus 22 
Aphodius prodromus 1 
Aphodius sp_ 39 
Dichelonycha sp 1 
Strigoderma pygmwa 2 
Hwmonia nigricornis 13 
Cryptocephalus trivittatus 1 
Cryptocephalus sp 2 
.Cerotoma trifurcata 3 
Diabrotica sdror 1 
Haltica obliterata 1 1 
Orepidodera helxenes 2 
Crepidoderq sp 1 
Epitrix cucumeris 1 
Epitrix parvula „ 1 
Ghwtocnema pulicaria 1 
Odontota dorsalis 1 
Mylab'ris prosopis (Bruchus) 1 
Notoxus alamedw 2 
Notoxus sp 3 
Anthicus sp 1 
Sitona hispidula 5 
Sitona flavescens 2 
coleoptera — continued. 
Sitona sp 8 
Anthonomus grandis 12 
Oymnetron teter 1 
Baris sp 1 
Trepobaris elongatus 1 
Trichobaris texana 1 
Gentvinus picumnns 2 
Limnobaris deplanata 1 
Balaninus parvidens 1 
Balaninus sp 4 
Sphenophorus parvulus 1 
Sphenophorus placidus 1 
Sphenophorus sp 1 
Calandra oryza 8 
Tomicus cacographus 1 
Tomicu's pini 7 
Hylastes sp 10 
Brachytarsus variegatus 1 
DIPTERA. 
Chrysops sp 3 
Parephydra humilis 1 
Luoilia cwsar 2 
Lucilia sp 3 
Calliphora vomitoria 8 
Stomoxys caljsitrans 1 
HYMENOPTERA. 
Apis mellifera 1 
Tiphia inornata L 2 
Tiphia sp 1 
Solenopsis molesta 1 
Myrmica scabrinodis 1 
Aphenogaster fulva 3 
Lasius sp 1 
Formica fusca var. neoclara 1 
Colpognathus sp 1 
Ophions sp 4 
Spilochalcis fiavipes 1 
Chalcis sp . 1 
TREE, OR WHITE-BELLIED, SWALLOW. 
Iridoprocne bicolor. 
The tree, or white-bellied, swallow (PL II, upper figure), as it 
is variously called, is found all over the United States except in some 
desert or extensive treeless areas. In a state of nature this bird 
builds its nests in hollow branches or dead trunks of trees, and to-day 
may occasionally be seen occupying one of its original haunts. Boxes 
put up for wrens and bluebirds seem to suit the tree swallow exactly, 
and when available these are taken in preference to the hollow 
branch. 
In its food habits this species differs somewhat from other Ameri- 
can swallows in that it eats an appreciable quantity of vegetable 
food, frequently filling its stomach completely with "berries or seeds. 
To determine the extent of this difference, 343 stomachs were exam- 
ined, collected in every month of the year in 22 States, British 
