672 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



c. Smaller and darker, with rufous margins to wing-coverts and inner secondaries 

 broader, and with lower back, rump, and posterior scapulars strongly rufes- 

 cent. (Venezuela and Colombia.) 



Pitangus sulphuratus rufipennis (extralimital)o 

 cc. I.arger and paler, with rufous margins to wing-coverts and inner secondaries 

 narrower, and without rufescent tinge to lower back, rump, and posterior 

 scapulars. (Costa Rica to southern Texas.) 



Pitangus sulphuratus derbianus (p. 672) 

 aa. Smaller (wing 80. 5-9() mm.); bill more slender. (Panama to Brazil.) 



Pitangus lictor (p. 675) 



PITANGUS SULPHURATUS DERBIANUS (Kaup). 

 DERBY FLYCATCHER. 



Adults (sexes alike) .—Forehesid and broad superciliary stripe (the 

 two of opposite sides confluent, or nearly so, on nape), the first, 

 together with antrorse nasal plumes more or less tinged with grayish 

 or grayish brown; area within this white border black, with a large 

 concealed median patch of bright yellow (lemon to nearly cadmium) ; 

 hindneck, back, scapulars, and rump plain olive-brown or browmish 

 olive (varying to nearly bister) ; upper tail-coverts browner, margined 

 or suffused (more or less strongly) with cinnamon-rufous; tail grayish 

 brown, the outer webs more or less broadly edged with cinnamon or 

 cinnamon-rufous, the inner webs almost wholly of the latter color; 

 \ving-coverts grayish brown or olive-brown, broadly margined with 

 cinnamon-rufous; remiges cinnamon-rufous, the inner secondaries 

 with exposed portion mostly grayish brown or olive-brown, the 

 remaining secondaries, together with primaries, with terminal portion 

 (except on edges) and terminal half (more or less) of median portion 

 deep grayish brown; lores, suborbital region, postocular region, and 

 auricular region black; malar region, chin, and throat white; rest of 

 under parts, including axillars and under wing-coverts, pure canary 

 or lemon yellow; bill black, the lower portion of mandible slightly 

 more brownish; iris, legs, and feet blackish. 



Young. — Similar to adults, but without any yellow on crown and 

 with cinnamon-rufous margins to wing-coverts and inner secondaries 

 broader and rather paler. 



" Saurophagns rufipennis Lafresnaye, Rev. et Mag. de Zool., iii, 1851, 471 (Caracas, 

 Venezuela; type now in coll. Bost. Soc. N. H.). — Pitangus rufipennis Sclater, Cat. Am. 

 Birds, 1862, 222 (Trinidad). — Pitangus derbyanus rufipennis Berlepsch, Ibis, 1884, 

 434. — Pitangus derbianus rufipennis Phelps, Auk, xiv, Oct., 1897, 365. — [Pitangus 

 derbianus.] Subsp. rufipennis Sclater, Cat. Birds Brit. Mus., xiv, 1888, 176. — Pitangus 

 derbianus (not Saurophagus derbianus Kaup) Salvin and Godman, Ibis, 1879, 201 (Valle 

 Dupar, Santa Marta, Colombia; crit.); Sclater, Cat. Birds Brit. Mus., xiv, 1888, 175, 

 part. — P[itangus] s[ulphuratus] rufipennis Hellmayr, Novit. Zool., xiii, 1906, 24 

 (diagnosis and range). 



Specimens from Trinidad ai'e distinctly intermediate between this form and P. s. 

 sulphuratus. They have been separated subspecifically by HellmajT (Novit, Zool., 

 xiii, no. 1, Feb. 24, 1906, 24) as Pitangus sulphuratus trinitatis. 



