HYLOTEEPE. 599 



"Male adult (Japan). — Differs from L. cristatus in having the upper 

 parts much brighter, usually rich fox-red, the forehead and fore crown 

 and a broad supercilium pure white ; wings blackish, externally margined 

 with rufous; tail fox-red tipped with dull white. Culmen, 17.7; wing, 

 89; tail, 94; tarsus, 21." (Dresser.) 



Subfamily PACHYCEPHALIN^^. 



Bill at nostril as broad as it is high, compressed toward the tip; a 

 well-marked notch near tip of bill; feathers of chin and jaw with their 

 shafts produced and hair-like; rectrices nearly uniform in length; tail 

 decidedly shorter than wing. 



Genus HYLOTERPE Cabanis, 1847. 

 Characters same as those given for the Subfamily. 



Species. 

 a\ Upper parts olive-green. 



6\ Breast, abdomen, and crissum lemon-yellow, or at least washed with yellow, 

 c^ Breast and abdomen bright lemon-yellow. 



d'. Larger; bill longer; back duller olive-green philippinensis (p. 599) 



d^ Smaller; bill shorter; back brighter olive-green apoensis (p. 600) 



c^. Breast, sides, and abdomen washed with yellow. 



d}. Smaller; breast and sides less strongly washed with yellow. 



fallax (p. 601) 

 (P. Larger; breast and sides more strongly washed with yellow. 



illex (p. 601) 

 5^ Breast olivaceous gray; abdomen white; crissum pale yellow. 



albiventris ( p. 602 ) 

 a'. Upper parts brown. 



&\ Smaller; wing, about 80 mm.; tail, 62; upper parts hair-bro^vn, slightly 



olivaceous whiteheadi (p. 602) 



6^ Larger; wing, 84 mm. or more; tail, 66 or more. 



c^. Larger; upper parts mars-brown winchelli (p. 603) 



c^. Smaller; upper parts dark walnut-brown; auriculars vinaceous cinnamon. 



homeyeri (p. 003) 



584. HYLOTERPE PHILIPPINENSIS Walden. 

 LUZON THICKHEAD. 



Hyloterpe philippinensis Waldex, Ann. & Mag. Nat. Hist. (1872), 10, 252; 



Trans. Zool. Soc. (1875), 8, 179, pi. 31, fig. 2; Grant and Whitehead, 



Ibis (1898), 241 (eggs); Whitehead, Ibis (1899), 225 (habits, nest); 



Sharpe, Hand-List (1903), 4, 313 (part); McGkegor and Worcester, 



Hand-List (1900), 93 (error in locality list). 

 Pachycephala philippinensis Gadow, Cat. Birds Brit. Mus. (1S83), 8, 221. 



Luzon (Meyer, Whitehead, McGregor) , 



Adult. — Top of head and hind neck olive-brown, shading into dull 

 olive-green on back; lighter olive-green on rump, tail-coverts, and edges 

 of wing-feathers and rectrices; lores and ear-coverts drab; chin, tbroat, 

 and malar region white; chin- feathers with black shafts; throat with 



