91. XENOSPINGUS. 799 



91. XENOSPINGUS. 



Type. 



Xenospingus, Cab. J.f. O. 1867, p. 347 X. concolor. 



Head of Xenospingus concolor. 

 Range. Peru and Bolivia. 



1. Xenospingus concolor. 



Sylvia concolor, D'Orb. S? Lafr. Syn. Av. p. 20 (1837); D'Orb. 



Voy. Amir. Merid., Zool. p. 216, pi. xviii. fig. 1 (1835-44). 

 Trichas concolor, Gray, Gen. B. ii. p. 197 (1848). 

 Xenospingus concolor, Cab. J. f. O. 1867, p. 349; Scl, <§• Salv. 



P. Z. 8. 1868, pp. 173, 569 ; rid. Nomencl. Av. Neotr. p. 30 



(1873) ; Tacz. Orn. Pirou, iii. p. 26 (1886). 

 Phrygilus concolor, Gray, Hand-l. B. ii. p. 90, no. 7372 (1870). 



Adalt male. Uniform slaty grey above; wing-coverts like the 

 back ; bastard-wing, primary -coverts, quills, and tail-feathers dusky 

 brown, edged with slaty grey, rather paler on the margins of the 

 primaries ; head like the back ; lores blackish ; upper and lower 

 edge of eyelid white ; ear-coverts, cheeks, and under surface of body 

 light slaty grey, rather darker ashy grey on the sides of the body ; 

 under tail-coverts ashy grey, with whitish margins ; under wing- 

 coverts and axillaries like the breast, very pale ashy along the edge 

 of the wing ; quills dusky below, pale ashy along the inner edge. 

 Total length (r3 inches, culinen 0-55, wing 2-8, tail 2-95, tarsus 0-95. 



Adult female. Similar to the male. Total length 6-2 inches, 

 culmen 0*5, wing 2*8, tail 2*75, tarsus 0*85 *. 



Young (?) female. Different from the male. Entirely brown 

 above; wing-coverts and quills also brown, with paler edges to the 

 median and greater coverts ; tail-feathers brown ; head brown, a 

 little more ashy on the hind neck, sides of neck, and over the ear- 

 coverts ; eyelid whitish ; ear-coverts brown ; under surface of body 

 light brown, the throat rather more ashy ; centre of the breast and 

 abdomen whity brown, the flanks darker brown ; the fore neck, 

 breast, and sides of body indistinctly streaked with dusky brown ; 



* Mr. Henry Whitely has marked a grey bird as the adult female ; but I 

 suspect that there is a mistake here, and that the bird I have described as the 

 young is in reality the old female. 



