l86 BIRDS OF THE REPUBLIC OF PANAMA PART 3 



dor), wing 49.9-53.7 (52.1), tail 35.5-47.2 (41.7), culmen from base 

 13.3-15.6 (13.9), tarsus 14.9-16.1 (15.4) mm. 



Resident. Known in the Republic from two males, one from 

 Calobre. Veraguas, one from Cerro Mali, Darien ; and two females, 

 one from 1200 meters on Cerro de Nique, Darien, the other of 

 uncertain locality. 



The bird from Calobre, collected by Arce, according to Salvin and 

 Godman (Biol. Centr.-Amer., Aves, vol. 2, 1892, p. 213) "was sent 

 to us ... by our collector Arce after the second list of his birds 

 pubHshed in 1870, was issued." The specimen, in the British Museum 

 (Natural History), labeled from Calobre, Veraguas, does not have 

 the date of collection. A female in the American Museum of Natural 

 History, purchased by Rothschild from the dealer Rosenberg, labeled 

 "Chiriqui, 1899," without other data, from its appearance also may 

 have been prepared by Arce. A male taken on the summit of Cerro 

 Mali, June 4, 1963, and the female netted April 17, 1972, on Cerro de 

 Nique, both by Galindo, are recent records. 



The only note, other than records of specimens, that I have seen 

 concerning these small birds, is that of Taczanowski (Ornith. Perou, 

 vol. 2, 1884, p. 52) with the description of a female taken in Peru. 

 Here he quotes the collector Jelski who said that he collected it from a 

 wandering flock moving among the terminal leaves of branches. 

 The specimen in question, listed originally as T. caUinota, has been 

 referred to the related T. humeralis. Zimmer (Amer. Mus. Nov., no. 

 584, 1932. p. 4) remarks that humeralis and caUinota "appear closely 

 related perhaps as conspecies." 



CERCOMACRA TYRANNINA (Sclater) : Tyrannine Ant-bird, 

 Hormiguerito Tiranuelo 



Pyriglena tyrannina P. L. Sclater, Proc. Zool. Soc. London, July 23, 1855, p. 

 90, pi. 98. (Bogota, Colombia.) 



A small inhabitant of thickets and forest ; male dark gray with 

 white wing bars, female rufous-brown below, olive-brown above. 



Description. — Length 125-140 mm. Adult male, slate color, darker 

 above, paler below, with rump, upper tail coverts, and flanks more or 

 less olive ; wing coverts tipped with white ; anterior inner lesser coverts 

 more or less white ; wings dusky to black, with alula and outermost 

 primary edged narrowly with white ; others bordered with slate or 

 dull olive ; a large dorsal area pure white, concealed by darker feather 

 tips ; under wing coverts slate, in part tipped with white ; inner 

 margins of primaries and secondaries edged with white; rectrices 



