J5GITHINA. 497 



Genera. 



a}. A tuft of long white silky feathers on each side of lower breast; primaries 

 exceeding the secondaries by less than one-half the tarsus; colors yellow and 



black ^githina (p. 497) 



a*. No tuft of long silky feathers on side of breast; primaries exceeding the second- 

 aries by more than one-half the tarsus. 

 6'. Primaries exceeding the secondaries by less than the length of tarsus. 



c'. Tail-coverts very long, nearly two-thirds as long as the tail; colors black 



and yellow, tail tipped with yellow Microtarsus (p. 513) 



c^. Tail-coverts shorter, equal to less than two-thirds of tail. 



d}. Hairs on nape short or wanting; if present, less than the tarsus in 

 length, 

 e'. Eye not surrounded by a w^attle ; tail without a light tip. 

 f. Head uncrested; plumage Mostly bright green.... Chloropsis (p. 498) 

 f. Head slightly crested ; culmen from base less than tarsus ; with no 



green in the plumage Pycnonotus (p. 515) 



e^ Eye surrounded by a narrow wattle; tail with a wide white tip. 



Poliolophus (p. 512) 

 d". Hairs on nape very long, their exposed portions longer than one-half the 



tarsus Trichophorus (p. 514) 



ft". Primaries exceeding the secondaries by more than length of tarsus. 



c^. Feathers of crown and nape rounded; hairs on nape well developed, extend- 

 ing beyond the feathers for more than two-thirds the length of bill from 



nostril; plumage entirely blue and black Irena (p. 499) 



(f. Feathers of crown and nape pointed; hairs on nape usually shorter; plu- 

 mage usually brown or gray, mottled with whitish; plumage rarely 

 yellow. 

 d}. Eictal bristles less than one-half the tarsus in length. 



Hypsipetes (p. 502) 

 d-. Eictal bristles more than one-half the tarsus in length lole (p. 504) 



Genus ^GITHINA Vieillot, 1816. 



Wings short and curved to the body; secondaries nearly as long as 

 primaries; a large tuft of long, white, silky feathers on each side of 

 lower breast; tarsus slightly greater than culmen from base; lower parts 

 bright yellow; wings black, barred with white. 



468. /EGITHINA VIRIDIS (Bonaparte). 



BLACK- WINGED IDEA. ' 



Jora viridis Bonaparte, Consp. Genera Avium (1850), 1, 397. 

 JEgithina viridis Sharpe, Cat. Birds Brit. Mus. (1881), 6, 11; Hand-List 

 (1901), 3, 306; Gates and Reid, Cat. Birds' Eggs (1903), 3, 302; Mc- 

 Gregor and Worcester, Hand-List (1906), 78. 

 Palawan (Steere, Everett, Whitehead, Platen, Steere Exp., Bourns c€ Worcester, 

 McGregor, Celestino, White). Sumatra and Borneo. 



Male. — Forehead, lores, supercilia', sides of face, and under parts golden 

 yellow, becoming slightly paler on abdomen and tail-coverts ; above yellow- 

 ish green; upper tail-coverts, wings, and tail black; outer webs of inner 

 primaries narrowly edged with pale yellow; inner webs, except that of 



