380 Annals of the Carnegie Museum. 



nomial designation by Dr. Chapman. The present series agree well 

 with the type. It is not yet clear whether the race is confined to the 

 Santa Marta region. It is a rare bird, ranging over the lowlands and 

 lower foothills, rarely going as high as 2,000 feet. It is partial to the 

 heavy forest and to woodland along streams. In its habits it is soli- 

 tary and very quiet and inconspicuous. 



341. Platytricus albogularis neglectus Todd. 



Platyrhynchus albogularis (not of Sclater) Bangs, Proc. Biol. See. Wash- 

 ington, XIII, 1899, 96 (La Concepcion). — Allen, Bull. Am. Mus. Nat. 

 Hist., XIII, 1900, 150 (Bangs' reference). 



Platytriccus albogularis Ridgway, Bull. U. S. Nat. Mus., No. 50, IV, 1907, 

 384 (La Concepcion; meas. ; references). 



Twelve specimens: Cincinnati, Las Vegas, and Pueblo Viejo. 



Platyrhynchus albogularis Sclater was described from western Ecua- 

 dor. It is a richly colored form, with much brownish suffusion both 

 above and below. Specimens from western Colombia, although some- 

 what duller in color, obviously belong to the same form. But a series 

 from the Santa Marta region are so decidedly paler and duller as to be 

 readily separable, and with them are to be ranged specimens from 

 the State of Boyaca in Colombia. These agree in having the upper 

 parts in general paler olivaceous; the pileum (laterally), as well as 

 the circumauricular region, is not so dark in color, and therefore less 

 strongly contrasted with the surrounding parts; the under parts are 

 markedly paler, with much less buffy and brownish suffusion, par- 

 ticularly on the breast and sides. All in all the birds of this region 

 seem to constitute an excellent subspecies, recently described by the 

 writer in the Proceedings of the Biological Society of Washington, 

 XXXII, 1919, 114. Two of the specimens sexed as females show 

 traces of the yellow crown-spot so conspicuous in the male. 



This diminutive flycatcher ranges over the forested slopes of the 

 whole region between 2,000 and 5,000 feet, or through the upper Trop- 

 ical Zone. As a rule it occurs only in very small numbers, and only 

 at Las Vegas was it found to be fairly common, in the valley below 

 the hacienda. Its habits and habitat both render it very inconspicuous, 

 so that it is doubtless often overlooked. It inhabits only the dark, 

 humid forest, keeping low down in the deep shade, and is moreover 

 very quiet, moving about in short hops through the undergrowth. Al- 

 though it has a loud, harsh call-note, this is seldom heard. The nest 



