402 MNIOTILTID^. 



29.^Basileuterus mesoleucus. 



Basileuterus mesoleucus, <S(7. P. Z. S. 18G5, p. 286, pi. 9. fig. 1 ; id. 



^- Salv. Nomencl. Av. Neotr. p. 10 (1873). 

 Setopliaga mesoleuca, Gray, Iland-l. B. i. p. 245, no. 3551 (1869). 



Adult (type of species). General colour above olive-green, clearer 

 towards the rump and i;pper tail-coverts, the latter having obsolete 

 paler tips ; wing-coverts like the back, the greater series edged with 

 dull rufous, scarcely perceptible on the median coverts ; bastard- 

 wiug, primary-coverts, and quills dusky brown, externally edged 

 with olive-greenish, a little tinged with rusty on the secondaries ; 

 tail-feathers olive, clearer on the margins of the feathers, which have 

 slightly paler tips ; crown of head slaty grey, extending to the 

 occiput : a distinct' superciliary streak of deep fawn-colour extending 

 from the base of the nostrils to beyond the ear-covcrts ; lores, ante- 

 rior and posterior margins of eyelid, as well as a streak along the 

 upper edge of the ear-coverts, dusky black ; ear-coverts, cheeks, and 

 sides of face fawn-colour, the ear-coverts washed with brown ; throat 

 and under surface of body white, the fore neck slightly shaded with 

 fulvous ; sides of body and flanks as well as the thighs pale fulvous- 

 brown ; under tail-coverts white, slightly washed with fawn-colour ; 

 under wi«g-coverts and axillaries pale olive-brown ; quills dusky 

 brown below, ashy along the edge of the inner web. Total length 

 5-4 inches, culmen 0-6, wing 2-4, tail 2-1, tarsus 0-85. 



Hah. Guiana. 



a. Ad. sk. Demerara ( Wilkins). Sclater Collection. (Type 



of species.) 

 h Ad sk Camacusa, British Guiana, Salviu-Godmau Coll. 

 July 10 (If. WliUely). 



30. Basileuterus bolivianus. 



Basileuterus mesoleucus, Scl. Sf Salv. P. Z. S. 1879, p. 594 {nee Scl). 



Adult. Very similar to B. mesoleucus, but distinguished by its 

 rufescent throat and by the absence of rufous edgings to the wing- 

 covcrts. Total length 4-8 inches, culmen 0-55, wing 2-75, tail 2-2, 

 tarsus 0*85. 



Hab. Bolivia. 



a. Ad. sk. Yuyo, Bolivia (C. Buckley). Salviu-Godmau Coll. 



31. Basileuterus leucopygius. 



Basileuterus uropygialis, Lawr. Ann. Lye. N. Y. viii. p. 179 (1866), 



ix. p. 95 (1868, wee Sel.). 

 Basileuterus leucopygius, Sel. 8f Salv. Nomenel. Av. Neotr. pp. 10, 



156 (1873) ; Salv. Sf Godm. Biol. Centr.-Amer., Aves, i. p. 172 



(1881, pt.). 



Adidt ??i«Ze(type of species). General colour above dusky olive-brown 

 with a sHght shade of ashy ; rump and upper tail-coverts creamy white, 

 with an isabeUine shade on the fo] mcr ; wing-coverts dark brown, 



