54 BIRDS OF THE REPUBLIC OK PANAMA PART 3 



extending into Costa Rica, as indicated) are currently treated as 

 conspecific with that of the mountains of Colombia and western 

 Ecuador, it should he noted that the latter is paler in general colora- 

 tion, including the bill and claws in addition to the plumage. It is 

 possible that field studies may indicate that the Central American 

 group is specifically distinct. 



CAMPYLORHAMPHUS PUSILLUS BOREALIS Carriker 



Campylorhamphus pusillus borealis Carriker, Ann. Carnegie Mus., vol. 6. August 

 29 (= September 7), 1910, p. 657. (El Hogar, Province of Linion, Costa 

 Rica.) 



XipJwrhytichus grandis "Cherrie," Bangs, Proc. New England Zool. Club, vol. 

 3, January 30, 1902, p. 48. (Nonien nudum.) 



Characters. — Slightly larger ; faintly lighter colored, especially 

 on the under surface. 



Measurements. — Males (10 from Costa Rica, Chiriqui, and Bocas 

 del Toro), wing 92.8-101.2 (96.0), tail 82.3-99.4 (89.5), chord of 

 culmen from base 54.0-59.0 (56.2), tarsus 21.0-22.9 (22.0) mm. 



Females (10 from Costa Rica and Chiriqui), wing 90.0-99.4 

 (93.3), tail 79.1-90.1 (82.9), chord of culmen from base 55.2-61.3 

 (57.4, average of 9). tarsus 21.3-22.7 (22.0) mm. 



Resident. Rare, mainly in forests of the Subtropical Zone, in 

 western Chiriqui, and western Bocas del Toro. 



The first specimens were collected by Enrique Arce in Chiriqui, 

 the two in the British Museum (Natural History) having come from 

 him to the Salvin-Godman and Sclater collections. There is another 

 labeled Boquete in the Naturhistorisches Hofmuseum in Vienna 

 purchased from the dealer Rosenberg that I examined in June 1954. 

 The specimen recorded by Bangs under the name "Xiphorhynchus 

 grandis Cherrie" as from the "Caribbean slope of Volcan de Chiriqui, 

 700 feet. June 16, 1901," was collected by W. W. Brown, Jr., at 

 about 215 meters elevation back of Chiriqui Grande, Bocas del Toro, 

 on the trail leading from Boquete to the Chiriqui Lagoon (Mrs. 

 Davidson. Auk, 1936. p. 232). Dr. Frank Hartman presented two 

 to the National Museum taken at about 1375 meters, beyond El 

 \'olcan, on the slopes leading to the Silla de Cerro Pando. Another 

 that he collected there west of the Rio Chiriqui Viejo on March 8, 

 1951, was not preserved as a specimen. A male in the American 

 Museum of Natural History was collected March 18, 1967, at Nueva 

 Suiza, below Cerro Punta, Chiriqui. by D. Koslovsky, B. Means, and 

 J. Sawyer. More recently, two males secured by Rudolfo Hinds at 



