494 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



The illustration of this species, as it was then considered, on plate 22 

 of Salvin and Godman, Biologia Centrali-Americana, Aves, vol. 1, 

 1884, is inaccurate. All 6 specimens in London show a prominent white 

 spot that extends forward along the edge of the upper eyelid to about 

 the middle of the eye. There is, in addition, a faint partly broken line 

 to the base of the bill. The broad white superciliary extending to the 

 back of the head as drawn by the artist does not exist; the side of the 

 head as drawn has no resemblance to the specimens. Otherwise, the 

 details are correct. 



CHLOROSPINGUS TACARCUNAE Griscom: Tacarcuna Bush-tanager, 

 Frutero Rastrojero Tacarcuneiio 



Chlorospingus tacarcunae Griscom, 1924, Amer. Mus. Novit, no. 141, p. 11. 

 (Mount Tacarcuna, east slope, alt. 4600 ft., eastern Panama.) 



Small; upper surface dark olive; undersurface yellow on throat and 

 breast, whitish on abdomen. 



Description. — Length 134-138 mm. Adult (sexes alike), upper sur- 

 face, including wing coverts and tail, dark olive; throat and breast dull 

 yellow, becoming greenish on sides, flanks, and undertail coverts; re- 

 mainder of undersurface white, tinged pale yellow; bend of wing pale 

 yellow, underwing coverts white. 



A male collected at Cerro Mali, Darien, on February 21, 1964, had 

 the iris pale orange; bill black; tarsus brownish neutral gray; toes 

 neutral gray; claws fuscous. 



Measurements. — Males (10 from Darien, including the type), wing 

 64.5-69.4 (67.5), tail 51.3-56.9 (53.5), culmen from base 12.1-14.1 

 (13.3), tarsus 19.2-21.8 (20.8) mm. 



Females (9 from Darien and Province of Panama), wing 59.8-70.0 

 (63.6), tail 47.6-52.8 (50.8), culmen from base 12.2-14.3 (13.3), tar- 

 sus 18.1-21.8 (20.5) mm. 



Resident. Uncommon to fairly common in forest on the few moun- 

 tains in eastern Panama from which it is known. First discovered in 

 Darien on Cerro Tacarcuna, this tanager has been found on Tacar- 

 cuna's spur, Cerro Mali, and in eastern Province of Panama on Cerro 

 Azul and Cerro Jefe. On Cerro Tacarcuna, I have collected it between 

 1320 and 1440 m, and Charles Handley has taken it there at 1230 m; 

 at Cerro Mali it has been collected at 1410 m. In the Province of Pan- 

 ama, David Hill collected 2 females on El Jefe at 1000 m and I have 

 taken it on Cerro Azul at 840 m. 



My observations of this bird reveal nothing distinctive about its be- 

 havior; like other bush-tanagers, this one is usually found in small 



