46 PROCEEDINGS OF THE NATION AX, MUSEUM vol. 74 



specimens) : Wing, 55-60 (57.5) ; tail, 5^56 (54.5) ; bill, 10.5-11 

 (10.8); tarsus, 22-23 (22.3). 



Range. — Subtropical Zone, Andes of Bolivia and extreme south- 

 eastern Peru. 



Remarhs. — Attention has already been called to the peculiarities 

 of Bolivian specimens of this species by Doctor Chapman, and now 

 that we have a good geries from both Bolivia and Peru for study it 

 is obvious that they represent two well-marked forms respectively 

 (except that examples from southeastern Peru belong to the Bo- 

 livian race). In the richness of its general coloration as compared 

 with true signatus the new race approaches B. luteoviridis striaticeps, 

 but is much smaller, and has paler feet. 



A young bird in juvenal dress (No. 85,172, Collection Carnegie 

 Museum), beginning to moult into the next plumage, is dull brown- 

 ish olive, paler below. 



Spec'miens eicamlned. — Bolivia: Incachaca, 18; Yungas, 1. Peru: 

 Oconeque, near Limbani, 1; Santo Domingo, 4. Total, 24. 



BASILEUTERUS LUTEOVIRroiS LUTEOVIRmiS (Bonaparte) 



Trichas luteoviridis Bonapabte, Atti Sesta Riunione Sci. Ital. Milano, 

 " 1844," 1S45, p. 405 ( " BogotS," Colombia ; orig. descr. : type in coll. 

 Antinori, fide Hellmayr). 



Myiothlypis luteoviridis Bonaparte, Consp. Avium, vol. 1, 1850, p. 311 

 ("Bogota," Colomliia; diag.). — Sclater, Proc. Zool. Soc. Loudou, 185.5, 

 p. 143 ('"Bogota," Colombia). 



Chlorospi)igus xanthophrys Sclateb, Proc. Zool. Soc. London, 1856, pp. 30 

 ("Bogot:!," Colombia; orig. descr.; type now in coll. Brit. Mus.), 93 

 (descr.; crit.). 



Basilcuterus luteoviridis Sclater and Salvin, Proc. Zool. Soc. London, 

 1875, p. 234 (Merida, Venezuela), p. 2.35 (syn.).— Sharpe, Cat. Birds Brit. 

 Mus., vol. 10, 1885, p. 379 ("Bogota," Colombia; descr.; refs.).— Sal- 

 vador: and Festa, Boll. Mus. Zool. ed Anat. comp. Torino, vol. 15, No. 

 357, 1899, p. 8 (Pun, Ecuador; crit.). — Chapman, Bull. Amer. Mus. Nat. 

 Hist, vol. 31, 1912, p. 160, in text, part ("Bogota," Colombia).— Hell- 

 mayr and VON Seilern, Arch. f. Naturg., vol. 78, A, 1912, p. 47, in text 

 (crit.).— Chapman, Bull. Amer. Mus. Nat. Hist., vol. 36, 1917, p. 550 

 (Almaguei', Fomeque, and Subia, Colombia; Colombian range; crit.). 



Basilcuterus luteoviridis luteoviridis Chapman, Proc. Biol. Soc. Washing- 

 ton, vol. 32, 1919, p. 265, in text (Colombia). — Hei.lmayr, Arch. f. 

 Naturg., vol. 8.5, A, 1919, p. 5, in text ("Bogota," Colombia; crit.).— 

 Chapman, Bull. Amer. Mus. Nat. Hist., vol. 55, 1926, p. 599 (Zuna, Tam- 

 billo, and upper Sumaeo, Ecuador; faunal range). 



Description. — Above between olive green and warbler green, in- 

 cluding the wings and tail externally; below wax yellow, with the 

 chin paler, more whitish, and the crissum duller, the sides and flanks 

 shaded with pyrite yellow or warbler green; short superciliaries 

 mustard yellow, bordered above by a faint dusky greenish line ; lores 



