BIRDS OF NORTH AND MIDDLE AMERICA. 63 



Cotyle fulmpennis (not of Sclater, 1859) Salvin and Sclatkk, Ibis, 1860, 31 

 (Duefias, Guatemala). 



Stelgidoplcry.c fulripcnnis Baird, Review Am. Birds, 1865, 316, part (Duonas, 

 Guatemala) . 



(?) Stelgkloptenjx fnlvipenni.'i Salvin, Ibis, 1870, 109, 114 (Costa Kicaj ; Proc. 

 Zool. Soc. Lond., 1870, 184 (Calovevora, Veragua). — Boucard, Pro(;. Zool. 

 Soe. Lond., 1878, 67 (San Jos(3, Costa Rica, Mar. to 3Iay). 



(?) Stelgidopicryx ruficoUiKfnlripennis Bangs, Proc. New Engl. Zool. Club, ii, July 

 31, 1901, 59, part (Guatemala; description). 



Stelgidopteryx fulvigula (not of Baird) Lawrence, Ann. Lye. N. Y., ix, 1868, 96 

 (Atiro, Costa Rica). 



Cotyle serripennis {not Hinindo serripennis Audubon) Sclater and Salvin, Ibis, 

 1859, 13, 136 (Duenas, Guatemala; resident). 



(?) Cotyle serripennis Ovt'E's, Ibis, 1861, 61 (San Geronimo, Guatemala, breeding; 

 descr. eggs). 



(?) Stelgidopteryx serripennis {not Hi r undo serripennis Audubon) Salvin and God- 

 man, Biol. Centr.-Am., Aves, i, 1883, 237, part (Calovevora, Veragua; San 

 Geronimo, Rio Dulce, Coban, Retalhuleu, San Jos6, etc., Guatemala). — 

 Sharpe, Cat. Birds Brit. Mus., x, 1885, 206, part (Coban, Guatemala). — 

 Zeledon, Anal. Mus. Nac. Costa Rica, i, 1887, 107 (Costa Rica). — Cherrie, 

 Auk, vii, 1890, 335 (San Jose, Costa Rica; very common during rainy sea- 

 son); ix, 1892, 22 (San Jose, Costa Rica, breeding abundantly). 



Stelgidopteryx serripennis Salvin and Godman, Biol. Centr.-Am., Aves, i, 1883, 

 * 237, part (Atiro, Costa Rica; Duefias, Guatemala). — Sharpe and Wyatt, 

 Mon. Hirund., 1894, 635, 653, part, pi. 125, lower tig. ( = adult). 



STELGIDOPTERYX RUFICOLLIS UROPYGIALIS (Lawrence). 

 PANAMA ROUGH-WINGED SWALLOW. 



Similar to S. salvinl^ but rump conspicuous!}^ paler than back and 

 longest under tail-coverts with a large terminal or subterminal spot 

 of dusky or blackish. 



Adults {sexes alike). — Pileum very dark sooty grayish ))rown or 

 soot}' black; hindneck, back, and scapulars paler sooty grayish brown; 

 rump pale brownish gray, pale grayish brown or dull whitish, in 

 strong- but not abrupt contrast with much darker color of back, etc.; 

 upper tail-coverts dusky grayish brown margined with paler; wings 

 and tail sooty blackish, the tertials distinctly margined or edged Avith 

 white or pale grayish; chin and throat cinnamon-buff, ootraceous-buff, 

 cinnamon, or pale russet; chest, sides of breast, sides, flanks, axillars 

 and under wing-coverts pale grayish brown; rest of under parts white, 

 the abdomen usually more or less strongly tinged with pale yellow, 

 sometimes decided primrose or almost naples yellow; two longer under 

 tail-coverts with exposed portion dusky or blackish, usiuilly margined 

 or tipped with white or at least with a subterminal spot of dusky ;'^ 

 bill l)lack; iris brown; legs and feet ))lack or dusky horn color. 



Young. — Similar to adults, but general color of upper parts more 

 sooty and broken by more or less distinct terminal margins to the 



"Sometimes the next longer coverts have a smaller dusky subterminal spot on 

 outer web. 



