96 TENNESSEE SWAMP-WARBLER. 



wing-coverts and sides dusky, spotted with black. Lower back dull yellow- 

 ish-green, as is the tail, of which the outer web of the outer feather is whitish. 

 Tips of the second row of coverts white, of the first row yellow; quills dusky, 

 their outer webs tinged with yellow. A line from the lore over the eye, 

 sides of the neck, and the throat, bright yellow. A dusky line behind the 

 eye. The rest of the under parts dull yellow, excepting the sides. 

 Length 4§ inches; bill along the ridge T 5 2 -, along the gap -yg-; tarsus § . 



The Mat-bush or Service. 



Pyrds Botryapium, Willd. Sp. PI., vol. ii. p. 1013. Pursch, Flor. Amer., vol. i. p. 339. 

 — Icosandria Pentagynia, Linn. — Rosacea, Juss. 



This species is distinguished by its ovate, acuminate leaves, racemose 

 flowers, linear-lanceolate petals, pubescent germens, and smooth calycine 

 segments. 



TENNESSEE SWAMP-WARBLER. 



Helinaia teregrixa, Wils. 

 PLATE CX.— " r ALE. 



So very rare does this little bird seem to be in the United States, that in 

 the course of all my rambles I never saw more than three individuals of the 

 species. The first was procured near Bayou Sara, in the State of Louisiana, 

 in the spring of 1821, when I drew it with the holly twig on which it was 

 standing when I shot it. The second I obtained in Louisiana also, not many 

 miles from the same spot, in the autumn of 1829, and the last at Key West, 

 in May 1832. Of its migrations or place of breeding I know nothing. 



It is an active and nimble species, an expert catcher of flies, fond of hang- 

 ing to the extremities of branches, like several others of the tribe. It utters 

 a single mellow tweet, as it passes from one branch to another in search of 

 food, or while on the wing, when it moves in a desultory manner for some 

 distance, diving suddenly towards the tree on which it intends to alight. 

 All the individuals which I procured were males. 



