AKT. 7 EEVISIOK" OF THE GEXUS BASILETJTERUS TODD 49 



or brownish yellow"' (Carriker). Juvenal plumage (No. 70,242, 

 Collection Carnegie Museum, August 27, 1918) : above dark citrine, 

 below similar but paler, amber yellow medially. The superciliaries 

 are faintly indicated ; the feet are pale, " yellowish flesh " in life. 



Measurements. — Male (three specimens) : Wing, 71-73 (average, 

 72) ; tail, 60-63 (62) ; bill, 11-13 (12) ; tarsus, 20-21 (20.3). Female 

 (four specimens) : Wing, 63-68 (65) ; tail, 56-62 (59) ; bill, 10-11 

 (10.8); tarsus, 20-21 (20.7). 



Range. — Temperate Zone, Central and Western Andes of Colombia. 



Remarks. — The above description is based on a pair of adult birds 

 in the collection of the Carnegie Museum, taken on August 27 and 

 31, respectively. The type series in the American Museum collection 

 are appreciably duller yellow below, but are not in such good condi- 

 tion. This form is quite distinct even from its nearest geographical 

 all}^, B. luteoviHdis, their respective ranges overlapping in the Cen- 

 tral Andes, but it is so remarkably similar to B. signatus signatus 

 that it might well be regarded as conspecific were it not for its wide 

 separation from the range of that form and its different zonal habi- 

 tat. As compared with B. signatus flavovirens, it carries the char- 

 acters of true signatus a step further, being still duller and paler. 



Specimens examined. — Colombia : Sancudo, Caldas, 3 ; Coast 

 Range west of Popayan (10,340 feet), 5 (including type). Total, 8. 



BASILEUTERUS BIVITTATUS (Lafresnaye and D'Orbigny) 



Muscicapa hivittata Lafresnaye and D'Orbigny, Syn. Avium, pt. 1, Mag. 

 Zool., cl. ii, 1837, p. 51, part (Yungas, Bolivia; oilg. descr. male; type in 

 coll. Paris Mus.). 



Tridhas Mvittaius Lafresnaye, Rev. Zool., 1840, p. 231 (diag. ; ref. orig. 

 descr.). 



Muscicapara iivittata D'Orbigny, Voy. Amer. M^rid., Oiseaux, 1844, p. 324 

 (Carcuata [Yungas], and eastern cordillera of La Paz, Bolivia; descr.; 

 habits). 



Elania Mvittata Gray, Gen. Birds, vol. 1, 1847, p. 250 (in list of sp. ; ref. 

 orig. descr.). 



Leptopogon 'blvittata Bonaparte, Consp. Avium, vol. 1, 1850, p. 186 (ref. 

 orig. descr.). 



Basileuterus bivittatus Baird, Kev. Amer. Birds, 1865, p. 242 (diag.), p. 243, 

 part (refs.), p. 245, in text, part (crit). — Sclatek and Salvin, Proc. 

 Zool. Soc. London, 1879, p. 594 (Bolivian records and refs.). — ^von 

 Berlbpsch, Journ. f. Orn., vol. 32, 1884, p. 283, note (crit.). — Sharpe, 

 Cat. Birds Brit. Mus., vol. 10, 1885, p. 391, part (Simacu and Consata, 

 Bolivia; Bolivian refs.). — Salvadori, Boll. Mus. Zool. ed Anat. comp. 

 Torino, vol. 12, No. 292, 1897, p. 4 (San Lorenzo, Jujuy, Argentina). — 

 Bbuch, Rev. Mus. La Plata, vol. 11, 1904, p. 255 (Oran, Salta, Argen- 

 tina). — VON Berlepsch, Omis, vol. 14, 1907, p. 442 (syn.). — Dabbene, An. 

 Mus. Nac. Buenos Aires, vol. 11, 1910, p. 369 (Argentine localities and 

 refs.) ; Bol. Soc. Physis, vol. 1, 1914, p. 354 (Argentine records and refs.). 

 2610—29 4 



