FAMILY DENDROCOLAPTIDAE 21 



Stomachs that I have examined have held fragments of small 

 insects and spiders, and, in one instance, remains of seeds, apparently 

 from small berries or drupes. E. A. Goldman's notes record one 

 pecking on a tree that, when a bit of bark fell, dropped after it and 

 caught it adroitly in the air. 



There has been some confusion in an understanding of the races 

 represented through southern Central America and Colombia. Study 

 of the considerable series now available in the U.S. National Museum 

 indicates that three slightly marked subspecies may be recognized 

 within the geographical limits of Panama. 



GLYPHORYNCHUS SPIRURUS SUBLESTUS Peters 



Glyplwrynchus spirurus siiblestus Peters, Bull. Mus. Comp. Zool., vol. 69, Oc- 

 tober 1929, p. 443. (Changuinola, Bocas del Toro, Panama.) 



Characters. — General coloration dark ; darker, more reddish brown 

 above ; darker below, with the throat more cinnamon-buff. 



A male, taken on the Caribbean slope of Code, at the head of the 

 Rio Guabal, March 2, 1962, had the iris dark brown ; maxilla and 

 tip of mandible black ; base of mandible dark neutral gray ; tarsus 

 dark brown ; toes dark neutral gray ; claws black. In a female, col- 

 lected near Puerto Armuelles, Chiriqui, February 23, 1966, the iris 

 was dark reddish brown ; maxilla fuscous-black, except the basal 

 third of the cutting edge, which was neutral gray ; mandible neutral 

 gray, changing to brownish gray at tip ; tarsus and toes brownish 

 black ; claws dusky neutral gray. 



Measurements. — Males (15 from Costa Rica, Chiriqui, Colon, and 

 northern Canal Zone), wing 70.2-78.0 (73.6), tail 63.5-74.6 (67.3, 

 average of 14), culmen from base 12.4—14.1 (13.4) ; tarsus 16.7- 

 17.8 (17.2) mm. 



Females (16 from Costa Rica, Chiriqui, Colon, and Canal Zone), 

 wing 67.3-72.6 (70.2), tail 59.5-66.6 (62.7), culmen from base 

 12.0-14.0 (12.9), tarsus 16.4-17.5 (17.0) mm. 



Resident. Found locally in forests on the Pacific slope in western 

 Chiriqui (Puerto Armuelles. Santa Clara. El Volcan) from near the 

 sea to 1250 meters on mountain slopes ; on the Caribbean side from 

 Costa Rica to the northern Canal Zone and Cerro Bruja in eastern 

 Colon ; recorded to 1460 meters on the trail from Boquete to the 

 Chiriqui lagoon. 



A set of two eggs in the U.S. National Museum was collected 

 May 26, 1892. by Charles W. Richmond (Proc. U.S. Nat. Mus., 

 vol. 16, 1893, pp. 497-498) near the Rio Escondido in southeastern 



