l62 BIRDS OF THE REPUBLIC OF PANAMA PART 3 



tarsus, toes, and claws dull grayish green, shading into neutral gray 

 with a greenish cast toward the tibiotarsal joint. Another male, shot 

 at Pucro, Darien, February 3, 1964, differed in having the toes dull 

 yellowish green, and the claws dusky neutral gray. 



Measurements. — Males (10 from San Bias, Darien and north- 

 western Colombia), wing 38.9-41.5 (40.0), tail 12.5-13.8 (13.0), 

 culmen from base 12.5-14.0 (13.1, average of 9), tarsus 14.2-15.7 

 (15.0) mm. 



Females (10 from Darien and northwestern Colombia), wing 39.0- 

 41.5 (40.3), tail 13.0-14.8 (13.7), culmen from base 12.5-14.1 

 (13.3), tarsus 14.6-15.3 (15.0) mm. 



Figure 14. — Pygmy ant-wren, hormiguerito pigmeo, Myrntotherula brachyura 



ignota, male. 



Resident. Local and uncommon in heavy forest. Recorded in 

 the Canal Zone (Gamboa, Lion Hill), San Bias (Mandinga), and 

 Darien (Garachine, Jesucito, Tigre, on the Rio Cupe, Boca de Paya, 

 mouth of Rio Tuquesa, Cana, and Jaque) . 



This bird has been known in Panama only from scattered records. 

 The first report is that of Lawrence (Ann. Lye. Nat. Hist. New 

 York, vol. 7, 1862, p. 325) of a male forwarded by McLeannan from 

 Lion Hill on the Panama Railroad. Through some misunderstanding 

 Salvin and Godman (Biol. Centr.-Amer. Aves, vol. 2, 1892, p. 209) 

 cite this record as "Myrntotherula pygmaea" (=M. brachyura 

 ignota) in the synonymy of Myrntotherula surinamensis. Other re- 

 ports from this area are one seen on Barro Colorado Island, July 28, 

 1943, by R. S. Arbib, Jr. (Eisenmann, Smithsonian Misc. Coll., vol. 



