24 



BULLETIN" 619, U. S. DEPARTMENT OF AGRICULTURE. 



manufactured. The. number in each stomach ranged from 1 to 4 or 

 5. For what purpose these stones were given to the nestling birds 

 and why angular fragments were selected can only be conjectured. 

 The food contained in the same stomachs was entirely of insects of a 

 soft nature and did not appear to require the aid of gravel for tritu- 

 ration. Moreover, the parent birds, whose food was certainly as 

 hard as that of the nestlings, did not take anything of the kind into 

 their stomachs. 



Following is a list of insects identified in stomachs of bank swal- 

 lows and the number of stomachs in which found : 



ISOPTERA. 



Termes sp 1 



HEMIPTERA. 



Entylia concisa 6 



Micrutalis calva 3 



Micrutalis parva 1 



Agallia sp 1 



Tetigonia hieroglyphica 1 



Cicadula 6-punctata 1 



Tylopelta brevis 2 



Lygns sp 1 



COLEOPTERA. 



Bembidlum versicolor 1 



Bcmbidium sp 1 



Clivina impressi'frons 1 



Tacliys tripunctata 1 



Amara sp 17 



Agonoderus pallipes 1 



Agonoderus sp 1 



Haliplus sp 1 



Bidessus affinis 2 



Helophorus inquinatus 1 



Hydrochus subcupreus 1 



Cercyon fulvipennis 1 



Gercyon melanocephalum 1 



Cercyon sp 7 



Cryptopleurum minutum 5 



Colon pusillum 1 



Atheta sp 1 



Cyrtusa blandissima 1 



Homalota sp 1 



AleocJiara sp 2 



Heterothops fasculus 1 



Philonthus sp 3 



Xantholiniis obsidianus 1 



Cilea silphoides 1 



Eustilbus apicalis 1 



Phalacrus polltus 1 



Scymnus loewii 5 



Atomaria ephippiata 1 



TypJioma fumata 1 



Thaumatoglossa americana 1 



Ulster americanus 1 



Hister subrotundus 2 



Hister sp • 2 



Saprinus scissus 1 



Saprinus lubricus 1 



Saprinus sphwrokles '. 1 



Saprinus sp ; 1 



coleoptera — continued. 



CarpopMlus dimidiatus 2 



Conotelus stenoides 1 



Epurcea helvola l 



Cryptarcha strigata 2 



Cryptarcha sp 2 



Qlischrochilus fasciatus 3 



Melcmophthalma sp 1 



Drasterias dorsalls 1 



Hyperoides choris 1 



Drapetes geminatus 2 



Throscus sericeus 1 



Cis fuscipes l 



Atcenius cognatus 1 



Atcenius sp 1 



Onthophagus hecate 1 



Onthophagus pennsylvanicus 2 



Onthophagus sp 13 



Owyonms poreatus 1 



Aphodius flmetarius 6 



Aphodius ruricola 1 



Aphodius granarius 1 1 



Aphodius vittatus 1 



Aphodius punctatus 1 



Aphodius inquinatus 24 



Aphodius stercorosus 1 



Aphodius sp 12 



Strigoderma pygmcea 4 



Hwmonia n/igricornis 30 



Diaohus anratus 1 



Graphops pubescens 1 



Metachroma ceneicolle 1 



Cerotoma trifurcata 2 



Epitrix cuciimeris 10 



Orepidodera helxines 1 



Glyptina atriventris 2 



Chwtocnema pulicaria 3 



Ghwtocnema sp 1 



Mylabris prosopis {Bruchus) 3 



Notoxus sp 5 



Anthicus punctulatus 1 



Anthicus floralis 1 



Anthicus nitidulus 2 



Anthicus sp 10 



Thecesternus humeralis 1 



Sitona hispidula 27 



Sitona flavesoens 3 



Sitona sp 18 



Apion metallicutn 2 



Apion sp 1 



Phytonomus posticus 1 



