292 Annals of the Carnegie Museum. 



remarkable manner, so that one end of each twig projects outwards, 

 giving the nest a bristling appearance. There is no lining of any sort, 

 the two or three pure white eggs being deposited on the rough twigs. 



244. Premnoplex brunnescens coloratus Bangs. 



Premnoplex brunnescens (not Margarornis brunnescens Sclater) Bangs, 

 Proc. Biol. Soc. Washington, XIII, 1899, 100 (San Miguel and Chirua). 



Margarornis brunnescens Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 157 

 (El Libano, Las Nubes, and Valparaiso). 



Premnoplex coloratus Bangs, Proc. New England Zool. Club, III, 1902, 84 

 (San Miguel; orig. descr. ; type now in Mus. Comp. Zool.; crit.). — Allen, 

 Bull. Am. Mus. Nat. Hist., XXI, 1905, 278 (ref. orig. descr.; syn.). — 

 Brabourne and Chubb, Birds S. Am., I, 1912, 247 (ref. orig. descr.; 

 range). 



Premnoplex brunnescens coloratus Bangs, Proc. Biol. Soc. Washington, XXI, 

 1908, 159 (Sierra Nevada de Santa Marta ; diag.). — -Ridgway, Bull. U. 

 S. Nat. Mus., No. 50, V, 191 1, 181 (diag.; range; references), 182, foot- 

 note (meas.). — Hellmayr and von Seilern, Arch. f. Naturg., LXXVIII, 

 1912, 109 (" Tagua " [Las Taguas] ; descr.; range; crit.; ref. orig. descr.). 

 — Chapman, Bull. Am. Mus. Nat. Hist., XXXVI, 1917, 417, in text 

 (" Santa Marta "). 



Twenty-seven specimens: Las Nubes, El Libano, Cincinnati, San 

 Miguel, Paramo de Mamarongo, Las Taguas, San Lorenzo, Sierra 

 Nevada de Santa Marta (6,000 feet), and Heights of Chirua. 



This race, which in Colombia appears to be virtually confined to the 

 Santa Marta region, is very distinct from the Central American P. 

 brunnescens brunncicauda, being in fact much more closely allied to 

 true brunnescens. It differs from the latter in the color of the upper 

 parts, wings and tail, which are brighter, more rufescent brown, with 

 the dusky edgings of the feathers of the back less prominent, and in 

 the paler color of the throat. 



A Subtropical Zone species, ranging from 5,000 to 9,000 feet wher- 

 ever heavy forest is found, but rare above 7,000 feet. The more humid 

 the conditions, the better this bird likes it. In its habits and behavior 

 it is wren-like, haunting dark ravines and the bases of trees, keeping 

 near or on the ground. It usually goes in pairs, or in the company of 

 other kinds of similar haunts and habits. Its only note is a weak 

 chirp, often repeated as it hops about in search of food. 



245. Xenops rutilus heterurus Cabanis and Heine. 



Xenops rutilus (not of Lichtenstein) Allen, Bull. Am. Mus. Nat. Hist., 

 XIII, 1900, 158 (Las Nubes). 



