416 Bulletin American Museum of Natural History. [Vol. XXXVI, 



above, with the rump deeper, the abdomen and especially lower tail-coverts 

 less rufous. 



Specimens of S. m. pullus are not now available for comparison but in 

 view of the individual variation to which this species is subject, it is evident 

 that they are very close to S. m. obscurior. 



Puerto Valdivia, 1; La Frijolera, 1; San Antonio, 1; Buena Vista, 3. 



(2508) Margarornis perlata (Less.). 



Sittasomus perlatus Less., Echo du Monde Sav., 1844, p. 275 ('Bogotd'; I pro- 

 pose El Pifion, above Fusugasugd, alt. 9600 ft.). 



Margarornis perlata Scl. & Salv., P. Z. S., 1879, p. 523 (Sta. Elena). 



Common in the Temperate Zone of all three ranges. Specimens from 

 the Central and Western Andes average somewhat yellower below than 

 those from the Bogota region and thus show a slight approach toward M. 

 squamigera. Old Bogota skins are paler and hence brighter above and less 

 olivaceous below than our recently collected ones. 



Cerro Munchique, 8; Almaguer, 5; Valle de las Pappas, 6; Laguneta, 

 6; Santa Isabel, 5; El Pinon, 3. 



' (2509) Margarornis stellata Scl. & Sah. 



Margarornis stellata Scl. & Salv., Nomen. Av. Neotrop., 1873, p. 160 (Quito). 



A specimen from the N6vita Trail (7000 ft.) and one from San Antonio, 

 indicate that this is a species of the Subtropical Zone of the Western Andes. 

 It appears to have been recorded, heretofore, only from western Ecuador, 

 whence I have seen no specimens. 



Novita Trail (7000 ft.), 1; San Antonio, 1. 



(2511) Premnornis guttata {Lawr.). 

 Margarornis guttata Lawr., Ann. Lye. N. Y., VIII, 1867, p. 168 (Quito). 



Our seven specimens represent localities in the Subtropical Zone of all 

 three ranges. Immature specimens from San Antonio and Fusugasuga 

 agree with Lawrence's type, which is in similar plumage. I have no other 

 Ecuador specimens. 



San Antonio, 3; La Candela, 1; La Palma, 1; Aguadita, 2. 



(2512) Premnoplex brunnescens brunnescens {Scl.). 



Margarornis brunnescens Scl., P. Z. S., 1856, p. 27, pi. cxvi ('Bogotd,'; I suggest 

 Aguadita above Fusugasugd, alt. 6500 ft.); Scl. & Salv., P. Z. S., 1879, p. 523 (Sta. 

 Elena). 



