222 bulletin: museum of comparative zoology. 



74. Ramphocelus dimidiatus isthmicus Kidg. 

 Twenty-seven adults, both sexes, May 2 to 23. This is a strongly char- 

 acterized subspecies; its long tail and pale colors, and the brownish patch 

 on the belly in the male at once separating it from true B. dimidiatus of Co- 

 lombia. It is a remarkable fact in distribution, however, that the Chiriqui 

 bird is true dimidiatus, and the Panama form occupies, so far as known, only 

 a small area along the Panama Railroad. 



75. Tachyphonus rufus (Bodd.). 

 One adult $ , May 26. 



76. Eucometis cristata (Hu Bus.). 

 Two adults, (J and 9, May 21 and 2G. 



77. Phoenicothraupis fuscicauda erythrolaema (Scl.). 



Ten adults of both sexes. May 4 to 26. 



In his " Birds of North and Middle America," Part 2, p. 153, Ridgway 

 states that though some Panama birds were paler than northern examples, tlie 

 subspecies is not worthy of recognition. The present series of ten examples, 

 however, seems to prove that there is a very pallid race, perhaps confined to 

 the arid region immediately about the city of Panama, as a series from Lonia 

 del Leon formerly referred to this subspecies by Bangs belongs rather with 

 true P. fuscicauda. 



The type in Sclater's collection (now in the British Museum) was supposed 

 to have come from Santa Marta, Colombia. We, however, entertain some doubt 

 as to this supposed origin, because none of the collectors who have visited the 

 Santa Marta region of late years have secured the bird there, and ant tanagera 

 are birds that most collectors secure. Be this as it may, however, the type 

 belongs to the pale form now under consideration. 



Recently, when Mr. Gerritt S. Miller, Jr., was in the British Museum, we 

 sent him specimens of both forms, which he carefully compared with the Sclater 

 type , and wrote us that it agreed with the pale birds from the Savanna of 

 Panama. 



P. fuscicauda erythrolaema differs from true P. fuscicauda in its paler colors 

 throughout. The male has the throat patch much paler (pale scarlet), the rest 

 of the plumage paler and duller, the occiput and sides of head decidedly 

 grayer ; the female paler, more olive, less brown. 



FRINGILLIDAE. 

 78- Arremonops conirostris conirostris (Bp.). 



Ten adults, both sexes. May 2 to May 23. 



