BIEDS — LANIIDAE — VIREO VIEESCENS. 



333 



strongly marked greenisli yellow of the sides' ia strong contrast to tlie white, which, on the 

 breast, is only half an inch wide ; the bright sulphur yellow of the under wing instead of very 

 pale sulphury white ; the color of the tail coverts is also characteristic. The whitish line over 

 the eye has a much grayer cast. 



The resemblance to V. virescens is closer than to oUvaceus ; it is, however, considerably 

 larger ; the dark and light lines over the eye less sharply defined. The shade of green above 

 is much the same in both. The under parts, from bill to vent, are purer white and more strongly 

 marked against the greenish yellow not yellow green sides. The under wing and tail coverts 

 are bright sulphur yellow, without any tinge of green. The quills are very difi'erent. 



As in V. oUvaceus, virescens, phiJadelphicus, and flavifrons, this species has no spurious 

 primary. 



The specimens are marked as having the iris yellow ; the bill lead color. 



List of specimens. 



VIEEO VIEESCENS, Vieillot. 



Bartram's Virco. 



.' Vireo virescens, Vieill. Ois. Am. Sept. I, 1807, 84 ; pi. liii. 

 .' .' Sylvia chivi, Vieill. " Encyclop. 437"— Nouv. Diet. XI, 1817, 174. 

 ! PhylL .nanes chivi, Cabanis, Mus. Hein. 1850- '51, 63. 

 Lani ,s ttgilis, Light. Doubl. 1823, No. 526. 



T amnophilus agilis, Spix, Av. Bras. II, tab. xxxit, f. 1. ' 



i'kyllomanes agilis, Bcrm. Th. Bras, Vogel, II, 1856, 108. 



Vireo bartramii, Sw. P. B. Am. II, 1831, 235— ?.' Aud. Om. Biog.V, 1839,296 ; pi. 434,f. 4.— Ib. Syn. 1839, 161— 

 Ib Birds Amer. IV, 1842, 153 ; pi. 242.— Nuttall, Man. Orn. I, (2d ed.) 1840, 358. 



Sp. Ch. — Second, third, and fourth quills about equal ; first intermediate between fifth and sixth decidedly shorter than the 

 former. Smaller than V. olimceus. Above bright olive green. Crown ash. A greenish white line from the bill over the eye 

 to the side of the occiput, bordered by a dark br'own line above. A dusky line from the bill through and behind the eye. Under 

 parts whitish ; the sides strongly yellowish green ; the under tail coverts greenish yellow. Length, 5.25 ; wing, 2.75. 



Hah. — Central and eastern South America ; Atlantic United Slates .' 



The specimen before me comes from Brazil, and may, possibly, not be the true V. bartramius, 

 although resembling it very closely. The bill is gently curved from the base, not so straight in 

 its uppei outline as in oUvaceus. The second and third quills are longest ; the fourth scarcely 

 shorter ; the first considerably shorter than the fifth. There is no spurious primary. 



This species is smaller than V. oUvaceus, but very similar. The* colors are much brighter 

 green, however. The ash of the nape has a browner tinge. The light line over the eye is 

 narrower, and more greenish white than white ; the dark line above it more distinctly marked. 

 The white of the under parts is more restricted, and the strongly marked yellow olive of the 

 sides is scarcely seen in V. oUvaceus. The under coverts and inner edges of the tail feathers are 

 much deeper greenish yellow. The sides of the neck and outer margins of the wings and tail 

 are purer olive greenish. 



