114 



Bangs — Tivo Neir Subs^icries of Tyrant Birds. 



the breast and sides but little grayer than the throat and belly ; wing bars 

 and edging of tertials much paler gray-whitish. 



S. civerea grisea of Costa Rica and Chiriqui has the head deep black, the 

 white patch on crown small, the back cinereous almost without brownish 

 tinge, the breast and sides dark gray — much darker than the throat and 

 belly — and the wing bars and edging of tertials dark gray. 



S. cinerea cinerea from Peru and eastern Ecuador (type locality supposed 

 to be Chili) has the back much browner and slightly darker gray, and the 

 under parts much grayer. 



MEASUREMKNTS. 



* All these places are in the Sierra Nevada de Santa Marta, Colombia. 



Todirostrum cinereum finitimum subsp. nov. 



Type from San Juan Bautista, Tabasco, Mexico, adult male No. 4148, coll. 

 of E. A. & 0. Bangs, collected March 7, 1890. 



Cliuradc.rs. — Similar to true T. cineremn of Guiana and southeastern 

 Brazil, except in l)eing darker yellow below, lemon yellow or canary yellow 

 instead of sulphur yellow, and much darker above — the back dull, dark 

 olive-green with faint dusky striations, lacking the gniyish or cinereous 

 tinge of these parts in true T.cinpreum ; in the new form there is gray only 

 on the nape where the black of the cap fades into the green of the back 

 and here the gray is nuich darker than in true T. riverno)). 



MEASUREMENTS. 



