308 Annals of the Carnegie Museum. 



260. Microrhopias intennedia (Cabanis). 



Formicivora intermedia Salvin and Godman, Ibis, 1880, 171 (Santa Marta). — 

 ScLATER, Cat. Birds Brit. Mus., XV, 1890, 250 (Santa Marta and Valle de 

 Upar). — Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, i6q. (Bonda). — 

 Bangs, Proc. New England Z06I. Club, III, 1902, 72, in text (" Santa 

 Marta"; crit.). — Allen, Bull. Am. Mus. Nat. Hist., XXI, 1905, 289 

 (Bonda; descr. nest and eggs). 



Eriodora intermedia Bangs, Proc. Biol. Soc. Washington, XII, 1898, 138 

 (" Santa Marta "). 



Formicivora cano-fumosus Cherkie, Mus. Brooklyn Inst. Sci. Bull., I, 1909, 

 387 (" Santa Marta "). 



Microrhopias grisea intermedia Hellmaye and von Seilern, Arch. f. Naturg., 

 LXXVIII, 1912, 126 (Santa Marta; ,crit.). — Hellmayr, Verh. Orn. Ges. 

 Bayern, XIV, 1920, 287 ("Santa Marta"; crit.), 



Microrhopias intermedia intermedia Chapman, Bull. Am. Mus. Nat. Hist., 

 XXXIII, 1914, 617, in text (Bonda; crit.). 



Microrhopias cano-fumosa Chapman, Bull. Am. Mus. Nat. Hist., XXXVI, 

 1917J 377, in text (Bonda; crit.). 



. Twenty-seven specimens : Bonda, Mamatoco, DibuUa, Rio Hacha, 

 and Santa Marta. 



With regard to the proper name of this form Dr. Oberholser and the 

 writer have reached a conclusion differing from that recently pub- 

 lished by Dr. Chapman. The matter may be briefly summarized as 

 follows-. In 1847 Cabanis described a bird under the name Formici- 

 vora intermedia, stating that his specimens came from Cartagena, Co- 

 lombia, and the Aragua Valley, Venezuela. In 1914 Dr. Chapman 

 received a number of specimens from the upper Magdalena Valley 

 which were clearly distinct from Santa Marta birds, assumed by him 

 to be typical intermedia, doubtless by reason of their coming from a 

 region so close to Cartagena. The Magdalena Valley form, which 

 Dr. Chapman accordingly described as new under the name Micro- 

 rhopias grisea honda, differs from M. intermedia mainly in the color 

 of the female, which has the under parts plain buffy, unspotted. Males 

 of the two forms are practically indistinguishable. Recently Dr. Chap- 

 man has discovered that the Cartagena form is the same as that in- 

 habiting the upper Magdalena Valley, instead of that from the Santa 

 Marta region, as he had supposed. He has accordingly proposed to 

 reduce hondce to a synonym of intermedia, and to call the form with 

 the spotted-breasted female cano-fumosa. It seems to us that these 

 changes are inadvisable and unnecessary. The whole question hinges 



