530 Annals of the Carnegie Museum. 



red on the crown. No. 44,657, February 21, is a young male in post- 

 juvenal moult, the black and red feathers of the pileum coming in. 

 The series is absolutely identical with another from the Orinoco 

 region and the State of Lara in Venezuela, and agrees as well with the 

 type of brevicaudus from Margarita Island. This form differs from 

 typical pileatus from Brazil in smaller size and whiteness of the loral 

 region. 



A rare bird at Dibulla, where but a single (young) example was 

 secured, but abundant around Rio Hacha, where it was found in all 

 kinds of cover, though keeping rather close to the ground as a rule. 

 It is inclined to be gregarious, and is usually met with in pairs or 

 family groups. So far at least as the Santa Marta region is concerned, 

 it is apparently confined to the Arid Tropical Zone, which invades this 

 district from the Goajira Peninsula to the northeast. 



508. Emberizoides herbicola sphenurus (Vieillot). 



Emberizoides macrourus (not Fringilla macroura Pallas) Bangs, ' Proc. Biol. 



Soc. Washington, XII, 1898, 141 ("Santa Marta"; crit.), 179 (San Miguel, 



Macotama, and Palomina ; crit.). — Allen, Bull. Am. Mus. Nat. Hist., XIII, 



1900, 163 (Bangs' references). 

 Emberizoides herbicola sphenurus Hellmayr, Abhand. K. Bayerischen Akad. 



Wiss., Math.-phys. Kl., XXVI, 1912, 105, in text (Santa Marta [region], in 



range). 



Additional records: La Concepcion (Brown). 



Thirteen specimens: Pueblo Viejo, Chirua, Heights of Chirua, and 

 San Miguel. 



A series of seven adult males from Venezuela and Colombia, selected 

 for the unworn condition of their plumage, measure as follows : wing, 

 68-73; tail, 95-104; bill, 13. 5-14; tarsus, 22.5-25. Bolivian specimens 

 in comparable condition, and assumed to represent true herbicola (de- 

 scribed from Paraguay), measure: wing, 76-78.5; tail, 108-114; bill, 

 13. 5-14. 5; tarsus, 24-26. There is thus a slight but appreciable dif- 

 ference in size between the two South American races of this species. 

 In color sphenurus is darker than herbicola, the back with less sulphine 

 yellow suffusion; the rump and upper tail-coverts are duller, Brussels 

 brown or raw umber, rather than Dresden or buckthorn brown ; the 

 wings externally are yellowish citrine rather than sulphine yellow; 

 and the under parts, too, are darker and less uniform. Only two of 

 the entire series of adults show any trace whatever of streaks on the 



