350 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



green; tail bluish slate color, the rectrices with black shafts and in- 

 distinctly edged basaUy xvith olive-green (the lateral rectrices in- 

 clining to olive-green on outer web), the under surface of ti.il dull 

 black or slate-black; a conspicuous patch of orange-yellow on flanks; 

 thighs chestnut; shorter under tail-coverts bright poppy red, the 

 longer ones chestnut; under wing-coverts pale dull yellow (primrose 

 or straw yellow), the remiges edged (not sharply) with the same, 

 except terminally; upper half of maxilla diill greenish-yellow, the 

 lower half passing from light olive sub-basally into nearly black 

 terminally, the basal embossed lamina black; mandible blackish 

 passing into light olive basaUy; bare orbital space dusky (in dried 

 skins) ; legs and feet dusky (in dried skins) ; length (skins), 350-392 

 (370); wing, 127.5-140.5 (134); tail, 116-133 (124.2); cuhnen, 88.5- 

 104.5 (94.9); tarsus, 33-36.5 (34.9); outer anterior toe, 27-30 (28.2).« 

 Adult female. — Similar to the adult male, but pileum and hind- 

 neck bright to dark chestnut and auricular region black instead of 

 yeUow, the feathers not elongated; upper half (approximately) of 

 maxilla apple green, paler and more glaucous terminally, tinged with 

 yellow basally; the lower portion clear olive basally passing into 

 black terminally; mandible clear olive basally passing into black 

 terminally; both maxilla and mandible with a basal embossed, more 

 or less distinctly sidcate, lamina of black; bare orbital space turquoise 

 blue above eye, emerald green in front of eye, orange-yeUow below 

 eye (passing into greenish toward eyelid), the postocular portion 

 bright greenish yeUow; iris brownish, red; legs and feet plumbeous- 

 blue, the soles pale yellowish;* length (skins), 335-383 (359); wing, 

 132-140.5 (136.2); tail, 111-129 (122.5); culmen, 81.5-89.5 (85.6); 

 tarsus, 33.5-37 (34.8); outer anterior toe, 26-30 (27.9)." 



"Seven Bpecimens. 



& Freali colors of specimens shot by the author in Costa Bica. Fresh colors of the 

 unfeathered parts of the adult male probably do not differ materially, though dried 

 sldns indicate that the adult male probably has the upper half of the mandible 

 decidedly more yellowish. 



c Eleven specimens. 



