FAMILY FORMICARIIDAE 25I 



Like related species these birds are inhabitants of undergrowth 

 in forests, ranging from the lowlands to the upper Tropical Zone. 

 They are more common in Panama than their close relatives, so 

 that though shy and retiring they are more frequently seen. The 

 species is one that has more than usual local variation with five fairly 

 well-marked races recognized, three of them found in the Republic. 



The eggs of this species (as described beyond under H. p. lizanoi) 

 are heavily spotted. In this they resemble Pittasoma michleri, and 

 differ from typical Grallaria, in which the eggs are bluish green 

 without markings, so far as they are known. 



HYLOPEZUS PERSPICILLATUS LIZANOI (Cherrie) 



Grallaria lisanoi Cherrie, Proc. U.S. Nat. Mus., vol. 14, September 4, 1891, p. 

 342. (Las Trojas de Puntarenas, Puntarenas, Costa Rica.) 



Characters. — Flanks and breast pale buff ; black streaks on breast 

 and sides averaging very slightly narrower ; back somewhat more 

 greenish olive; crown lighter gray; wing markings darker rufous, 

 as in the race intermedia. 



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

 77.6-82.5 (80.6), tail 27.5-33.3 (30.3), culmen from base 20.3-22.0 

 (21.0), tarsus 34.0-38.1 (36.3) mm. 



Females (10 from Chiriqui and Costa Rica), wing 78.8-81.5 

 (80.1), tail 27.4-37.3 (30.7), culmen from base 20.8-22.8 (21.6), 

 tarsus 33.9-36.5 (34.9) mm. 



Resident. Found locally on the Pacific slope from southwestern 

 Costa Rica to Chiriqui. 



Early specimens from Panama were collected by Arce at Mina de 

 Chorcha near David, and on the southern slopes of the great volcano. 

 Others were found later at Divala by W. W. Brown, Jr., who col- 

 lected four there from October to December 1900 (Bangs, Auk, 

 1901. p. 367). The National Museum has a female taken by Dr. 

 Frank A. Hartman at 1250 meters elevation near Santa Clara, 

 Chiriqui, midway between El Volcan and the Costa Rican boundary. 

 In the American Museum there is a male from Bugaba collected 

 by H. J. Watson, November 3, 1903. 



In the British Museum (Natural History) I have examined a set 

 of two eggs, identified as of this race, collected at Pozo Azul de 

 Pirris, Costa Rica, June 18, 1902, by C. F. Underwood. The ground 

 color is pale olive-buff, heavily blotched and spotted with chocolate 

 and dull cinnamon so that much of the underlying basal color is 

 concealed. The markings in the main have indistinct outlines. In 



