FAMILY TYRANNIDAE 59I 



entrance below the top, suspended by a rootlet in a slight indentation 

 in a clay bank along a road." The two eggs measure 19.0 X 13.7, and 

 19.3 X 14.0 mm. In the second, collected at the Turure River, the nest 

 was "in a dark indentation in dark shade along a stream in forest." 

 The two eggs measure 20.1x14.6, and 19.3x14.3 mm. 



LEPTOPOGON SUPERCILIARIS TRANSANDINUS 

 Berlepsch and Taczanowski 



Lcptopogon superciliaris transandinus Berlepsch and Taczanowski, Proc. Zool. 



Soc. London, 1883 (April 1884), p. 553. (Chimbo, western Ecuador.) 

 Lcptopogon superciliaris troglodytes Griscom, Bull. Mus. Comp. Zool., vol. 69, 



April 1929, p. 174. (Cana, Darien.) 



Characters. — Foreneck, breast, and sides faintly paler, more 

 greenish gray ; back and crown in series averaging very slightly paler. 



A male, taken March 10, 1964, at the old Tacarcuna village site 

 on the base of Cerro Mali, Darien, had the iris Verona brown ; bill 

 black, gape honey yellow ; tarsus and toes neutral gray ; claws black. 

 A female, collected at the same time, had the iris dark mouse brown, 

 but was like the male otherwise. A second male, on March 14, differed 

 from the one of March 10 in having the gape dull yellowish white; 

 tarsus, toes, and claws black. 



Measurements. — Males (10 from Darien), wing 61.7-68.0 (64.8), 

 tail 52.4-58.0 (56.2), culmen from base 13.6-15.3 (14.3). tarsus 

 14.4-15.7 (14.9) mm. 



Females (8 from Darien), wing 57.4-61.4 (59.5), tail 47.5-59.2 

 (50.5), culmen from base 12.5-15.3 (13.9, average of 7), tarsus 

 13.9-14.7 (14.3) mm. 



Resident. Recorded locally in the upper Tropical and Subtropical 

 Zone forests on Cerro Pirre, and on the base of Cerro Mali, Darien. 



The first records of this species on Cerro Pirre were made by 

 E. A. Goldman, who collected a male and three females from 600 to 

 1375 meters above Cana, from March 9 to June 10, 1912. Benson 

 took six males and two females there in 1928. Others have been 

 reported here more recently by Dr. Galindo of the Gorgas Memorial 

 Laboratory. In the Tacarcuna area this flycatcher was found by 

 Anthony and Richardson during their explorations in 1915, mainly 

 at around 600 meters elevation. In my own work there in March 

 1964, I found them in small number, always in the forests, where they 

 ranged rather high, mainly in and immediately below the tree crown. 

 They descended to lower levels, however, as one was taken in a mist 

 net set on the ground. 



