4G0 BIRDS OF BRITISH GUIANA. 



the vvitig. The tarsus is ;il)aut t\vii;e the lenorth oE the exposed 

 culinen, and the middle toe and chiw about three- fourths the 

 lensth of the tarsus. Coloration : male and female similar. 



640. Myospiza humeralis. 



Grasshopper Sparrow. 



Tanagra humei'nlis Bosc. Journ. d'Hist. Nat. ii. p. 179, pi. xxxlv. 



tig. 1792 ("Habitat in Cayana"). 

 Coturnicitlus maiiimbe (Licht.) Salvin, Ibis, 1SS5, p. 216 (Koraima, 



3500 ft.). 

 AmmodroDiKs vianimhe Sharpe, Cat. B. Brit. Mus. xii. i?. 691, 1888 



(Eoraima). 

 Myio.yjiza manimhe Brabourne & Chubb, B. S. Amer. i. p. 375, no. 3855, 



1912. 

 Myiospiza humeralis Chubb, Bull. Brit. Ornith. CI. xxxi. p. 39, Jan. 25, 



1913. 



Adult. Fore part of the head black with o-rey margins to the 

 feathers, the central portion of the feathers paler and more sooty- 

 brown on the hind-neck and back, the dark portion edged with 

 rust-brown ; lesser upper wing-coverts rust-brown ; median and 

 greater series blackish with whitish margins like the bastard- 

 wing ; primary-coverts and flight-quills dark hair-brown with 

 pale edgings on the outer webs of the primaries and rust-colour on 

 the secondaries, margins of inner webs whitish ; lower back rust- 

 brown, the dark centres almost obsolete ; upper tail-coverts 

 blackish with grey margins ; tail hair-brown with pale edges to 

 the feathers ; sides of face pale brown ; lores and bend' of wing 

 yellow ; throat and breast pale earth-grey, inclining to white 

 on the abdomen and becoming isabelline on the lower flanks and 

 under tail-coverts ; sides of the body darker and inclining to 

 ochreoiis-brown ; axillaries and inner under wing-coverts white, 

 the marginal series j'ellow like the bend of the wing ; under surface 

 of flight-quills and lower aspect of tail hair-brown. 



Total length 113 mm., exposed culmen 10, wing 51, tail 38, 

 tarsus 20. 



The specimen described was collected on the Abary River in 

 July 1903. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



