FAMILY TYRANNIDAE 523 



Females (10 from northern and western Colombia), wing 42.1^5.4 

 (43.6), tail 30.5-34.6 (32.1), culmen from base 14.0-16.7 (15.6), 

 tarsus 18.0-18.8 (18.3) mm. 



TODIROSTRUM SYLVIA SCHISTACEICEPS Sclater: Slaty- 

 headed Tody-flycatcher, Moscareta Enana Gris 



Todirostrum schistaceiceps P. L. Sclater, Ibis, vol. 1, October 1859, p. 444. 

 (Oaxaca, Mexico.) 



A small Tody-flycatcher, with crown gray ; breast gray, streaked 

 with white. 



Description. — Length 88-95 mm. Adult (sexes alike), crown slate, 

 indistinctly lined with black, paler on nape ; back, scapulars, lesser 

 wing coverts, rump and upper tail coverts olive-green ; wings black ; 

 middle and greater coverts tipped with olive-yellow ; primary coverts, 

 primaries and secondaries edged with yellowish olive-green, this 

 changing to yellow on inner secondaries ; tail black, edged with yellow- 

 ish olive-green ; lores dusky, with a superior line of white, extending 

 back across upper eyelid ; lower eyelid also white ; suborbital and 

 auricular area slate-gray ; anterior lower surface light gray, streaked 

 narrowly with white ; center of lower breast and abdomen white or 

 yellowish white ; sides and flanks light olive-green ; under tail coverts, 

 axillars, and under wing coverts light yellow. 



Immature, breast and f oreneck lighter gray. 



A male, collected at El Cope, Code, February 25, 1962, had the iris 

 dark reddish brown; tip of bill grayish white, rest fuscous-black; 

 tarsus, toes, and claws grayish brown. 



Measurements. — Males (10 from Chiriqui, Veraguas, Herrera, 

 Code, Province of Panama and Canal Zone), wing 44.0-47.3 (45.3), 

 tail 30.9-34.7 (33.0), culmen from base 12.1-14.8 (13.5), tarsus 

 18.2-18.8 (18.5) mm. 



Females (10 from Chiriqui, Veraguas, Code, Colon, Canal Zone, 

 and eastern Province of Panama), wing 43.5-45.7 (44.5), tail 29.5- 

 33.0 (31.3), culmen from base 12.1-14.8 (13.5), tarsus 18.2-18.8 

 (18.5) mm. 



Resident. Fairly common ; found locally in thickets and low second 

 growth in the Tropical Zone lowlands ; on the Pacific side from 

 Chiriqui (Puerto Armuelles, Concepcion, Buena Vista, to 820 meters 

 elevation) east through Veraguas, the northeastern side of the Azuero 

 Peninsula, southern Code, the western Province of Panama, and 

 the southern Canal Zone, to the Rio Pacora and La Jagua, eastern 

 Province of Panama. On the Caribbean side uncommon in Bocas del 



