ART. 7 REVISION" OF THE GENUS BASILEUTERUS TODD 65 



from Palambla, Piura, are probably typical, and the above descrip- 

 tion has been drawn up from these. The form shows affinities on 

 the one hand to the iiierldanus-tristriatiis group, and on the other to 

 the aicrlcapillus group, and in a linear sequence should probably be 

 placed between these two. 



Specimens excumined. — Peru : Palambla (3,900-6,500 feet) , Piura, 6. 



BASILEUTERUS TRIFASCIATUS NITIDIOR Chapman 



Basileuterus trifasciatus (uot of Taczanowski) Shakpe, Cat. Birds Brit. 

 Mus., vol. 10, 1885, p. 388, part (Jima, Ecuador; descr.). 



Basileuterus trifasciatus nitidior Chapman, Amer. Mus. Nov. No. 143, 1924, 

 p. 8 (El Chiral [type locality]. La Puente, Zaruma, Punta Santa Ana, 

 Lumana, Las Piiias, San Bartolo, Loja, iVlamor, Guaclianama, Celica, 

 Guainche, and Cebollal, Ecuador ; orig. descr. ; type in coll. Amer. Mus. 

 Nat. Hist.).— Chapman, Bull. Amer. Mus. Nat. Hist., vol. 55, 1926, p. 

 600 (Ecuador localities; diag. ; range). 



jSuhs'pecific characters. — Similar to Basileuterus trifasciatus tri- 

 fasciatus^ but yellow of under parts richer and purer, throat more 

 yellowish, and upper parts, etc., brighter green, with less grayish 

 suffusion. 



Measurevients. — Male: Wing, 53-60 (average, 57); tail, 48-52 

 (50.5); bill, 9.5-10.5 (10); tarsus, 18.5-20 (19.5). Female: Wing, 

 52-54 (53.7); tail, 46-50 (47.5); bill, 9-10 (9.7); tarsus, 18-19.5 

 (19). 



Range. — Subtropical Zone, Andes of southwestern Ecuador. 



Retncurks. — " This form belongs in the group of birds of Marafion 

 origin in western Ecuador." It appears to be sufficiently well 

 marked by the characters above outlined, although I am unable to 

 verify all the differences called for in the original description. Com- 

 parison with a larger series of true tHfasciatus is, of course, 

 desirable. 



/Specimens examined. — Ecuador: Celica (6,900 feet), Loja, 3; San 

 Bartolo (7,500 feet), Alamor Range, Loja, 5; El Chiral (5,350 feet), 

 Santa Rosa-Zaruma trail, Oro, 9 (including type) ; La Puente 

 (2,500 feet), Oro, 1; Lunama (4,600 feet), Loja, 3; Guainche (3,200 

 feet), S. E. of Alamor, Loja, 1; Punta Santa Ana (3,650-4,500 feet), 

 Portovelo-Loja trail, Oro, 6; Guaclianama (9,050 feet), Loja, 2; 

 Cebollal (3,100 feet), Loja, 2; Zaruma (6,000 feet), Oro, 7; Loja, 

 1; Alamor (4,550 feet), Loja, 14; Las Pifias, 1; Jima, 1. Total, 56. 



BASILEUTERUS HYPOLEUCUS Bonaparte 



Basileuterus hijpoleucus Bonaparte, Consp. Avium, vol. 1, 1850, p. 313 

 (Brazil; orig. descr.; type in coll. Berlin Mus.). — BuEMEasxEai, Syst. 

 TJeber. Thiere Brasiliens, vol. 3, 1856, p. 113, note (Brazil; ref. orig. 

 descr.). — Baird, Rev. Amer. Birds, 1865, p. 242, note (diag.), p. 243 

 (refs.). — ScLATEE and Salvin, Proc. Zool. Soc. London, 1868, p. 170, in 

 2610—29 5 



