OF EASTERN PENNSYLVANIA. 231 



Selandria rosce, S. vitis, Formica sanguined, species 

 &{ Halictus, Andrena, and others; larvse of Eufit- 

 chia ribearia, Chcerodes transversata, Ennomos 

 subsignaria, Zerene catenana, Hybernia tiliaria, 

 Anisopteryx vernata, A. pometaria, Phisia preca- 

 tionis, Thecla humuli, Limacodes s cap ha, and 

 mature forms of Argynnis myrina, Eudamus tityrus, 

 Ctenucha Virginica, Halesidota tessellaris, Utetheisa 

 bella, Anchylopera fragaricz, Clisiocampa Ameri- 

 cana, Spilosoma Virginica, and others, especially 

 thernost common of the Noctuidce and Tortricidce ; 

 besides Affcs mali and other aphides, small spiders 

 &c., which it procures from the foliar surfaces, and 

 extracts with considerable skill from blossoms 

 while hovering with fluttering wings before them. 

 Nidification usually commences during the last 

 week of May, say about the 25th, or the beginning 

 of June, and requires a period varying from five 

 to six days, both birds laboring with marked 

 diligence till the completion of the nest. Ovipo- 

 sition follows on the next day, and continues 

 during four days, one egg being deposited daily. 

 In the duties of incubation which then succeed and 

 last for 1 1 days, the female is solely occupied. 

 The male while his partner is thus engaged, occa- 

 sionally administers to her wants by bringing her 

 a racy tidbit. When sitting, the female is readily 

 approached, and even remains in her nest until a 

 hand is stretched forward to seize her, when she 

 quietly slips out and alights upon a branch close 

 by. Like the female of olivaceus, she gazes upon 



