OF EASTERN PENNSYLVANIA. 1 53 



Its food consists principally of coleopteroiis and 

 lepidopterous larvee, although other kinds are 

 devoured when there is a scarcity of its favorite 

 diet. At first, it subsists upon beetles. Among 

 which may be mentioned Mycetochares basillaris, 

 Isomira sericea, Donacia metallica, D. confluens, 

 Platynus cupHpennis, Harpalus pensylvanicus, H. 

 compar, Scarites subterraneus, Chrysomela ccerulei- 

 pennis and C. spircsa; Formica sanguinea, F. sub- 

 terranea, Selandria rosce, Apis tnellifica, Megachile 

 ceniunculatis, among hymenoptera; Syrphus ob~ 

 scurus, Culex tceniorhynchus^ Tabanus lineola, 

 Scatophaga furcata and Musca- domestica, among 

 diptera; besides small spiders, earthworms, 

 aphides, and the common species of yuhcs. 

 Later, the larvae of different lepidoptera are eaten 

 in great numbers. Some of these are Harrisina 

 Americana, Anisopteryx vernata, Utetheisa bella, 

 Gortyna sees, and mature forms of Spilosoma Vir- 

 ginica, Orgya leucostigma, Penthina pomonella, 

 Acronycta oblinita, and numerous Nociuids and 

 Tortricids. During the past season, the Maryland 

 Yellow Throat has been a common visitant to low, 

 marshy grounds, where it may be frequently 

 observed perched upon a tussock of grass, on the 

 alert for small insects ; occasionally, small, shallow 

 pools on account of the aquatic insects which 

 swarm in such localities, are chosen. 



The song of this bird is a lively and pleasing 

 refrain, easily recognized, and exhibiting at times 

 marked variety. It resembles very closely that 



