444 Bulletin Amercan Museum of Natural History. [Vol. XXXVI, 



(2829a) Orchilus atricapillus Lawr. 

 Orchilus atricapUlus Lawb., Ibis, 1875, p. 385 (Costa Rica). 



Our four specimens are from the Tropical Zone of the Pacific. This 

 species has been recorded from Ecuador by Hartert (Nov. Zool., IX, 1902, 

 p. 607) but has not before been reported from Colombia. In default of 

 material representing all the forms concerned in the case of Orchilus vs. 

 Perisotriccus I here follow Hellmayr (Nov. Zool., XIII, 1906, p. 22). 



Alto Bonito, 1; Novita, 1; San Jose, 1; Barbacoas, 1. 



(2831) Atalotriccus pilaris pilaris (Gab.). 



Colopterus pilaris Cab., Arch, fiir Naturg., XIII, 1847, p. 253, pi. 5, fig. 4 (Cartha- 

 gena); Allen, Bull. A. M. N. H., XIII, 1900, p. 150 (Bonda; Minca; Cacagualito). 

 Todirostrum exile Cass., Proc. Acad. N. S. Phila., 1860, p. 144 (Carthagena). 



Found by us only in the Magdalena Valley. Three specimens from 

 Honda and Chicoral are darker than a good series of birds taken at the 

 same season near Santa Marta, which doubtless typically represent pilaris. 

 They thus approach A. p. venezuelensis Ridgw. (Type No. 73454 A. M. 

 N. H.), but are smaller. 



La Playa, 1; Honda, 2; Chicoral, 1. 



(2843) Hapalocercus meloryphus {Wied). 



Euscarthmus mtloryphus Wied, Beitr. Naturg. Bras., Ill, 1831, p. 947 (Campo 

 Geral, Prov. Minas and Bahia). 



Hapalocercus meloryphus Wyatt, Ibis, 1871, p. 332 (Savanna of Bucaramanga). 



Hapalocercus pauLus Allen, Bull. A. M. N. H., XIII, 1900, p. 150 (Chirua; San 

 Miguel; La Concepcion). 



A female from Chicoral in the upper Magdalena Valley appears to me 

 to be inseparable from H. meloryphus, which, however, is too poorly repre- 

 sented in our collection to permit of satisfactory identification of the Chico- 

 ral specimen. The type of meloryphus is too faded to be of value in this 

 connection, so far as color is concerned, and in addition to it I have but one 

 specimen from Matto Grosso and one from the Parana (U. S. N. M., 20993). 

 The differences between our specimen, which is in worn plumage, and those 

 from Matto Grosso and the Parana, which are in fresh plumage, are ap- 

 parently seasonal. This view finds support in a series of eight specimens, 

 including the type of Hapalocercus paulus, loaned me by Mr. Bangs, most 

 of which closely match the more southern birds in color, and if the latter 



