324 BULLETIN 133, UNITED STATES NATIONAL MUSEUM 



and a male killed March 24 on an arid brush-grown flat 15 miles west 

 of Timuyan in the same Province. An adult male shot December 

 24, 1920, near Victorica, Pampa, in an open forest of calden and 

 algarroba, is distinctly intermediate between curatu^ and pata- 

 gonicus, and marks a point near the dividing line between the two. 

 The abdomen in this intermediate skin is very faintly yellowish, 

 and the back only faintly darker than in patagonicus. It might, with 

 equal propriety be identified with either of the forms concerned. 



The geographic races at present known for the species panilus 

 are indicated below : 



SPIZITORNIS PARULUS PARULUS (Kittlitz). 



Muscicapa Paridus Kittlitz, Mem. Acad. Imp. Sci. St.-Petersbourg, vol. 1, 

 1831, p. 190. (Concepcion and Valparaiso, Chile.) 



Above dark, wing bars absent or faint, auricular dark patch 

 sharply defined. 



Central Chile. Skins from Bariloche, Rio Negro, while not typi- 

 cal, have been assigned to this race.^^ 



SPIZITORNIS PARULUS AEQUATORIALIS (Berlepsch and Taczanowski) . 



Anaeretes parulus aequatorkilis Beklepsch and Taczanowski, Proc. Zool. 

 Soc. London, 1884, p. 296. (Cechce, western Ecuador.) 



Similar to pamlus, but breast more heavilj^ streaked, darker above, 

 crown with white markings restricted. 

 Ecuador and Peru. 



SPIZITORNIS PARULUS CURATUS Wetmore and Peters. 



Spizitornis parulus curatus Wetmore and Petees, Auk, 1924, p. 145. (Rio 

 Colorado, Gobernacion de Rio Negro, Argentina.) 



Similar to parulus, but paler above, with two distinct wing bars, 

 dark auricular patch less sharply defined and upper breast whiter, 

 less yellowish. 



Eastern Rio Negro through Pampa to Cordoba and the foothills 

 of the Andes in Mendoza. Eastern Chubut? 



SPIZITORNIS PARULUS PATAGONICUS Hellmayr. 



Splsitornis parulus patagonicus Hellmayr, Arch. f. Naturg., vol. 85, No- 

 vember, 1920, p. 51. (Neuquen, Gobernacion de Neuquen, Argentina.) 



Similar to curatus but paler above with abdomen white. 

 Eastern Neuquen and northwestern Rio Negro, intergrading with 

 curatus in central Pampa. 



" See Wetmore and Peters, Auk, 1924, p. 145. 



