BLACICUS. 225 



Genus BLACICUS Cab. 



Blacicws Cabanis, Journ. fiir Ornith. 1855, p. 480. Type B. carlbceus 

 (d'Orb.). 



Fig. 92. — JBlacicvs andinus. 



This genus is distinguished by having the lower mandible 

 white ; the width of the bill at the base is equal to about three- 

 fifths the length of the exposed culmen. The wing is rounded, 

 the second, third, and fourth primaries longest — the first is rather 

 shorter than the fifth, but longer than the sixth. The tail is square 

 at the tip and about six-sevenths the length of the wing. Tho 

 tarsus is rather longer than the exposed culmen, and the middle 

 toe and claw are about equal in length to the hind toe and claw. 

 Coloration : male and female similar. 



498. Blacicus andinus. 



Black-headed Pbewee. 



JEmpidonaos andinus Taoz. P. Z. S. 1874, p. 539 (Lake Junin, Peru). 

 Contopus hrachytarsus (nee Scl. Ibis, 1859, p. 414) Sclater, Cat. B. Brit. 



Mus. xiv. p. 240, 1888 (Guiana). 

 Blacicus andinus Brabourne & Chubb, B. S. Amer. i. p. 301, no. 3074, 



1912. 



Adult. General colour of the upper surface dark earth-brown 

 with a tinge of slate-grey, darker and inclining to blackish brown 

 on the top of the head ; wings blackish brown with pale edges to 

 some of the feathers, including the inner webs of the flight-quills ; 

 tail pale brown ; lores whitish at the base ; sides of face and breast 

 pale earth-brown ; throat, abdomen, under tail-coverts, axillaries, 

 and under wing-coverts white with a tinge of yellow on the 

 abdomen ; under surface of quills and tail-feathers pale brown. 



Total length 136 mm., exposed culmen 11, wing 71, tail 60, 

 tarsus 14. • 



VOL. II. Q 



