556 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



PASSERINA CIRIS CIRIS (Linnaeus) 



Embcriza ciris Linnaeus, 1758, Syst. Nat., ed. 10, 1, p. 179. (South Carolina.) 



Characters— Slightly smaller than pallidior; male with undersurface 

 brighter red; female more greenish above and yellower below. 



M easurements. — Males (10 from the breeding range, taken in May) , 

 wing 65.5-72.4 (70.6), tail 51.1-58.4 (54.8), culmen from base 10.2- 

 12.2 (11.0), tarsus 17.3-19.0 (18.4) mm. 



Females (10 from the breeding range, taken in May-July), wing 

 63.0-67.0 (64.8), tail 49.1-53.2 (50.9), culmen from base 10.3-11.7 

 (10.9), tarsus 17.1-19.1 (18.1) mm. 



Winter visitor from the north. Specimens from Panama that are 

 definitely of this race are: a deeply colored adult male taken by Arce 

 on the southern slope of the Volcan de Chiriqui (British Museum no. 

 85.12.14.662), another very bright adult male taken by W. M. Perrygo 

 at Parita, Herrera, February 3, 1948 (USNM no. 400889), a very 

 brightly colored immature male taken by Olson at Almirante, Bocas 

 del Toro, on April 9, 1963 (AMNH no. 785749), and another im- 

 mature male taken at Almirante on October 27, 1964 (USNM no. 

 533401). 



PASSERINA CIRIS PALLIDIOR Mearns 



Passerina ciris pallidior Mearns, 1911, Proc. Biol. Soc. Washington, 24, p. 217. 

 (Fort Clark, Kinney County, Texas.) 



Characters. — Larger than nominate ciris; males with undersurface 

 paler red; females more grayish green above and more buffy, less yel- 

 low, below. 



M easurements. — Males (10 from the breeding range, taken in March 

 and April), wing 69.0-74.4 (71.9), tail 50.9-57.5 (54.2), culmen from 

 base 11.0-12.7 (11.7), tarsus 17.4-19.1 (18.2) mm. 



Females (10 from the breeding range, taken in March-June), wing 

 65.2-69.5 (67.3), tail 50.4-55.0 (53.0), culmen from base 11.0-11.8 

 (11.6), tarsus 16.9-19.1 (18.0) mm. 



Winter visitor from the north. An adult male collected by F. Hicks 

 at David, Chiriqui, in March 1865 (USNM no. 40336) has a relatively 

 large wing and rather pale underparts and was identified as pallidior by 

 Allan R. Phillips. A female (USNM no. 471826) collected at Alanje, 

 Chiriqui, on March 5, 1960, is quite pale below and is likewise referable 

 to this race. 



