FAMILY TROCHILIDAE 375 



U. S. National Museum, and there is 1 in the Museum of Zoology, 

 University of Michigan, (loaned to me for examination by Dr. Robert 

 W. Storer) collected by Paul Slud March 6, 1952, near the crater 

 of Volcan Turrialba. Carriker (Ann. Carnegie Mus., vol. 6, 1910, 

 p. 546) described an immature male from the Dota area in the Bangs 

 collection that is of the torridus color, and lists another from Irazu. 

 In the early history of the species there was confusion in the ap- 

 plication of the names flammula and torridus, both proposed by 

 Salvin. Salvin and Godman (Biol. Centr.-Amer., Aves, vol. 2, 1892, 

 pp. 354-355, pi. 56, fig. 2) cite references to literature for torridus 

 from Costa Rica, but these seem to apply to typical flammula. They say 

 definitely that all specimens of torridus seen "were sent to us by 

 our collector Arce from the Volcan de Chiriqui." When Ridgway's 

 references (U. S. Nat. Mus. Bull. 50, pt. 5, 1911, p. 604) are 

 checked only 2 records of the torridus form from Costa Rica prove 

 valid, 1 from Irazu and 1 from the Dota Mountains. While Berlioz 

 (Orn. Biol. Wiss. Festschr. Stresemann, 1949, pp. 5-6) unites the 

 birds of Costa Rica and Panama under a single name, careful reading 

 of his discussion indicates that he had seen the torridus style of 

 coloration only from Chiriqui, his information on Costa Rica coming 

 from literature, apparently mainly from Carriker. The question of 

 relationship in the two groups is one that requires more information 

 than is now available. It seems appropriate in this circumstance to 

 list the Panamanian population as a geographic race separate from 

 that of Costa Rica. 



SELASPHORUS ARDENS Salvin: Glow-throated Hummingbird, 

 Colibri Garganta Ardiente 



Selasphorus ardens Salvin, Proc. Zool. Soc. London, 1870, p. 209. (Castillo, 

 Veraguas, Panama.) 



Very small, somewhat less than 5". /. torridus; gorget in male bril- 

 liant purplish red; central rectrices with a black shaft stripe, with 

 green restricted or absent. 



Description. — Length 67-72 mm. Adult male, upper surface 

 metallic bronze-green; central rectrices dull black, edged broadly 

 with cinnamon-rufous ; others cinnamon-rufous laterally with dull 

 black centers; wings dusky with a purplish sheen; side of head 

 and chin cinnamon-rufous ; throat bright purplish red ; breast white 

 washed with buff; abdomen grayish white; under tail coverts light 

 to deep buff; sides bronze-green with a wash of dull rufous ; femoral 

 and lateral tufts buffy white. 



