ART. 7 REVISION OF THE GENUS BASILEUTERUS TODD 85 



Basileuterus belli scitulus Nelson, Auk, vol. 17, 1900, p. 268 (Todos Santos. 

 Guatemala; orig. descr. ; type in coll. U. S. Nat. Mus.). — Ridgway, Bull. 

 U. S. Nat. Mus., No. 50, vol. 2, 1902, p. 744 (descr.; range; refs.). 



Suhspecific characters. — Similar to Basileuterus belli belli, but 

 upper parts darker, olive green, and under parts less, decidedly and 

 extensively yellow, Avith more greenish shading. 



Measurements. — Male (five specimens) : Wing, 68-65 (average, 

 64.5); tail, 59-62 (60); bill, 10-10.5 (10.4): tarsus, 21-22 (21.5). 

 Female (one specimen) : Wing, 61; tail, 59; bill, 11; tarsus, 21. 



Range. — Highlands of Guatemala. 



Remarks. — A slightly diiferentiated form, barely separable by the 

 characters above assigned, none of the others ascribed appearing to 

 hold. The under parts, in fact, are less yellow, if anything, not more. 

 Its range is confined to Guatemala and the adjoining parts of Mexico, 

 in the State of Chiapas. 



Specimens examined. — Mexico : San Cristobal, Chiapas, 2. Guate- 

 mala : Todos Santos, 2 (including type) ; Calderas, Yolcan de Fuego, 

 3 ; Uspantan-Quiche, 1 ; unspecified, 1. Total, 9. 



BASILEUTERUS DELATTRII MESOCHRYSUS Sclater 



Basileuterus brunneiceps (not Setophaga brutweiceps Lafresnaye and 

 D'Orbigny) Bonaparte, Consp. Avium, vol. 1, 1850, p. 314 ("Bogota," 

 Colombia ; diag. ) . 



Basileuterus delattrii (not of Bonaparte) Sclater, Pioc. Zool. Soc. London, 

 1855, p. 144 ("Bogota," Colombia; diag.; crit.).— Cherrib, Expl. Zool. 

 Costa Rica, vol. 1, Aves, 1893, p. 14 (Buenos Aires and Boruca, Costa 

 Rica ; local range ) . 



Basileuterus mesochrysus Sclateb, Proc. Zool. Soc. London, 1860, p. 251, 

 in text ("Bogota," Colombia; orig. descr.; type in coll. Brit. Mus.). — 

 Baird, Rev. Amer. Birds, 1865, p. 250. part ("Bogota," Colombia; refs.). — 

 Sclater, Proc. Zool. Soc. London, 1365, p. 284 (refs.; diag.; range). — 

 Salvin, Proc. Zool. Soc. London, 1867, p. 136 (Santa Fe, Veragua ; refs.; 

 crit.) ; 1870, p. 183 (Chitra and Calobre. Veragua ) .—Wyatt, Ibis, 1871, 

 p. 323 (Herradura and Cocuta Valley, Colombia). — Salvin and Godman, 

 Ibis, 1879, p. 198 (Manaure, Colombia; crit.); 1880, p. 117 (Chirua, 

 Colombia). — Salvin and Godman, Biol. Centr.-Amer., Aves, vol. 1, 1881, 

 p. 176, part (Panama and Colombia refs. and localities; descr.; range; 

 crit.). — VON Berlepsch, Journ. f. Orn., vol. 32, 1884, p. 282 (Bucara- 

 manga and "Bogota," Colombia; Wyatt's record; crit.). — Sharpe, Cat. 

 Birds Brit. Mus., vol. 10, 1885. p. 396, part (Panama and Colombia 

 localities and refs.; descr.; crit.).— Bangs, Proc. Biol. Soc. Washington, 

 vol. 12, 1898, p. 144 ("Santa Marta," Colombia), p. 180 (Palomina, 

 Colombia).— Allen, Bull. Amer. Mus. Nat. Hist., vol. 13, 1900, p. 176 

 (Bonda, Minca, and Cacagualito. Colombia). 



Basileuterus delattrei (emendation ?) Lawrence, Ann. Lye. Nat. Hist. 

 N. Y., vol. 7, 1861, p. 322 (Panama R. R.). 



Basileuterus delattrii mesochrysus Cherrie, Proc. U. S. Nat. Mus., vol. 14, 

 1891, p. 342 (crit.; range). — Todd and Carriker, Ann. Carnegie Mus., 

 vol. 14, 1922, pp. 65, 439 (Santa Marta localities and refs.; plum.; range; 

 crit. ) . 



