WESTEKN YELLOW-BELLIED FLYCATCHEK. 



57 



COLEOPTERA. 



Anisodactylus piceus 1 



Philhydrus sp 1 



Aleockara bimaculata 1 



Hippodamia 5-signata 1 



Hippodamia ambigua 3 



Hippodamia convergent 4 



Coccinella calif ornica 6 



Scymnus sp 1 



Limonius infuscatus 1 



Telephorus divisus 1 



Leptura soror 1 



Leptura crassipes 1 



Gastroidea cyanea 2 



Gastroidea sp 3 



Lina scripta 1 



Diabrotica 12-punctata 1 



Diabrotica soror 1 



Diabrotica ep 1 



Monoxia sordida 1 



Haltica bimarginata 1 



Haltica tombacina 1 



Epitrix sp 1 



Eulabis rufipes 1 



Blapstinus ruficeps 1 



Rhynchites glastinus 1 



Sitones sp 1 



Balaninus sp 8 



DIPTERA. 

 Stratiomyia maculosa 1 | Tabanus punctife 



LEPIDOPTERA. 



Carpocapsa pomonella. 



Vegetable food. — Vegetable matter was found, in 19 stomachs, but 

 not all of it can be called food. In 1 stomach were a few seeds of 

 Rubus (blackberry or raspberry), in 8 were seeds of elderberries, in 

 2 were skins of fruit not further identified, in 1 a seed of tar weed 

 (Madia), and in 7 were bits of rubbish. The Rubus fruit consisted 

 of 2 seeds which may have been wild and in any case could have but 

 little economic importance. 



Food of nestlings. — Included in the 157 stomachs discussed in the 

 foregoing pages were those of 9 nestlings. These were separately 

 tabulated and were found to vary somewhat from the adults in the 

 proportions of food elements. One brood of 4, thought to be about 

 48 hours old, had been fed upon beetles, 0.25 per cent; flies, 16.25 

 per cent; leaf hoppers, 39 per cent; raphidians, 1.75 per cent; cater- 

 pillars, 6.75 per cent; and spiders, 36 per cent. The soft character 

 of this food is noticeable. A few bits of a beetle fed to one nestling 

 constituted the only hard element. Not even wasps or ants were 

 found. Another brood of 3, somewhat older than the last, had been 

 fed upon beetles, 5.67 per cent; flies, 50.33 per cent; wasps, 24.67 

 per cent; caterpillars, 13.67 per cent; and spiders, 5.66. Here the 

 hard elements have been increased by the greater amount of beetles 

 and by the introduction of wasps. Two other nestlings, supposed to 

 be about 10 days old, had been fed with wasps and bees to the extent of 

 92.50 per cent, with no other animal food. Besides these there was 

 in one stomach what appeared to be a mass of rootlets amounting to 

 7.50 per cent, and both stomachs contained a few gravel stones. It 



