ABT. 7 REVISION OF THE GENUS BASILEUTERUS — TODD 43 



Basileuterus flaveolus Sharpe, Cat. Birds Brit. Mus., vol. 10, 1885, p. 380 

 (Bahia and Goyaz, Brazil: descr. ; refs.). — Allen, Bull. Amer. Mus. 

 Nat. Hist., vol. 3, 1S91, p. 345 (Chapada and Baliia. Brazil ; plum. ; meas. ; 

 descr. eggs). — von Ihering, Rev. Mus. Paulista, vol. 3, 1898, p. 131 (Bra- 

 zilian localities). — Salvadoei, Boll. Mus. Zool. ed Anat. comp. Torino, 

 vol. 15, No. 378, 1900, p. 3 (Urucum, Matto Grosso, Brazil; refs.).— 

 Robinson and Richmond, Proc. U. S. Nat. Mus., vol. 24, 1901, p. 177 

 (La Guaira, Venezuela). — von Iheking, Aves Brazil. 1907, p. 333 

 (Rincao, Avanliandava. and Bahia, Brazil; range). — Hellmayr, Nov. 

 Zool., vol. 15, 1908, p. 19 (Rio Araguaya, Bahia, and IMaranhao, Brazil; 

 Mount Bucarito, Tocuyo, Venezuela ; Chiquitos. Bolivia ; range ; meas. ; 

 crit.). — VON Berlepsch, Nov. Zool., vol. 15, 1908, p. 107, note (Puerto 

 Cabello, Venezuela, and Bahia, Brazil). — Reiser, Denks. Math.-Nat. Kl., 

 K. Akad. Wiss. Wien, vol. 76, 1910, p. 78 (Santa Rita, Missao, and 

 Paranagu&j Brazil). — Grant, Ibis, 1911, p. 89 (Sapatero Cu6, Para- 

 guay). — Hexxmayr and von Seilern, Arch. f. Naturg., vol. 78, A, 1912, 

 p. 47 (Las Quiguas, Venezuela; refs.; crit.). — Menegaux, Rev. Francaise 

 d'Orn., vol. 5, 1917, p. 85 (Caceres, Matto Grosso, Brazil). — Hellmayr, 

 Nov. Zool., vol. 32, 192-5, p. 181 (Chiquitos, Bolivia; range; crit.). — Wbh-- 

 more. Bull. U. S. Nat. Mus., No. 133, 1926, p. 370 (Puerto Pinasco, 

 Paraguay; habits). — Snethlage. Journ. f. Orn., vol. 76, 1928, p. 536 

 (range in N. E. Brazil). 



Description. — Above, including wings and tail externally, bright 

 warbler green; below lemon chrome, the sides washed with pyrite 

 yellow; indistinct superciliaries paler yellow, and upper and under 

 eyelids still paler (baryta yellow) ; a dusky greenish transocular 

 streak, restricted behind the e3^e ; " iris brown ; bill black ; feet orange 

 yellow" (Carriker). 



An example in juvenal dre,ss, with the postjuvenal moult beginning 

 (No. 150,689, Collection American Museum of Natural History, El 

 Liman, Venezuela, August 28, 1918) is much duller, the head 

 markings faint, and the throat and breast dull olive like the back. 



Measurements. — Male: Wing, 64-69 (average, 66); tail, 55-63 

 (62) : bill, 11-12.5 (12) ; tarsus, 21-24 (22.5). Female: Wing, 58-67 

 (62.5) ; tail. 54-61 (58) ; bill, 11-12 (11.5) ; tarsus, 21-22.5 (21.5). 



Range. — Tropical Zone, from eastern Brazil (States of Maranhao 

 and Bahia) west through Matto Grosso to the Ande,s of Bolivia, and 

 south to Paraguay and Sao Paulo, reappearing in northern 

 Venezuela. 



Remarks. — Baird described this species provisionally, on the 

 chance that it might eventually prove distinct from B. Tuteoviridis, 

 from a single specimen collected in Paraguay by Capt. T. J. Page. 

 Long before this, however, a female had been taken in Bolivia by 

 D'Orbigny. but confused with B. Mviffatus, while Natterer had col- 

 lected eight specimens in Brazil, as duly recorded by von Pelzeln. 

 Its standing as a species has not been questioned, in spite of its ad- 

 mitted close relationship to B. Tuteoviridis. H. H. Smith secured a 



