NO, 6 RECORDS OF BIRDS FROM PANAMA — WETMORE 5 



such periods. It is interesting that the hummingbird, the manakin, 

 the wren, and the rat all differ from present-day mainland relatives 

 in definitely greater size. In the tanager this distinction is also evident 

 but is restricted to the bill. Perhaps this species has come to the 

 island more recently than the others. 



II. DESCRIPTIONS OF A WOOD-QUAIL AND A TYRANT 

 FLYCATCHER FROM THE SERRANIA DEL DARIEN 



During part of June and July 1963, the Gorgas Memorial Labora- 

 tory, under arrangements directed by Dr. Pedro Galindo, established 

 three camps in the Serrania del Darien, in the vicinity of Cerro 

 Tacarcuna, to serve as bases for the investigation of this httle-known 

 area. The birds collected included specimens of a beautiful wood- 

 quail, related to Andean mountain forms to the south but unlike any 

 of those known, and a flycatcher of a South American species not 

 recorded before from Panama. Descriptions of these follow. 



Family Phasianidae 

 ODONTOPHORUS DIALEUCOS, new species 



Characters. — Generally similar to Odontophorus strophium (Gould) ^ 

 but with crown black ; back and scapulars without white shaft lines ; 

 entire upper surface olive, with rufous only as a band on the hindneck ; 

 foreneck similar in the two white bands above and below, with the 

 space between mixed black and dull rufous ; rest of lower surface 

 olive rather than rufous and cinnamon, without shaft lines or a black 

 collar below the lower white band ; breast, sides, and flanks dull olive- 

 buff, finely barred and mottled with slaty black. 



Description.— Type, ^, U.S. Nat. Mus. 483327, from 1,450 meters 

 elevation, 6| kilometers west of the summit of Cerro Mali, Darien, 

 Panama, taken June 7, 1963, by Pedro Galindo (orig. no., Gorgas 

 Mem. Lab. 4-00384) : Crown black with slight, partly concealed mot- 

 tling of dull rufous, and tiny spots of white ; a prominent white super- 

 ciliary streak that extends back of the eye ; a band of hazel mottled 

 and lined with sooty black on the hindneck that laterally becomes 

 cinnamon-buff as it extends around to meet the posterior end of the 

 white superciliary ; back, rump, and upper tail coverts brownish olive, 

 finely barred and mottled with sooty black, with scattered faint spots 

 and indistinct bars of cinnamon ; wing coverts, inner secondaries, and 



^ Ortyx (Odontophorus) strophium Gould, Proc. Zool. Soc. London, vol. 11, 

 1843 (March, 1944), p. 134. (Bogota, Colombia.) 



