284 U.S. NATIONAL MUSEUM BULLETIN 221 



Genus EMPIDONAX Cabanis 



Tyrannula flavivenlris W. M. Baird and S. F. Baird 



Proc. Acad. Nat. Sci. Philadelphia 1 (28) : 283, September 1843. 

 =Empidonax flavivenlris (Baird and Baird). See A.O.U. Checklist of 



North American Birds, ed. 5, p. 342, 1957. 

 985. Adult male. Carlisle, Cumberland County, Pennsylvania. May 18, 

 1843. Collected by William M. Baird and Spencer F. Baird. Original 

 number 985. Received from Spencer F. Baird, of whose private col- 

 lection it once formed part. 

 This form was established upon an unknown number of specimens col- 

 lected at Carlisle in the spring of 1843, all of which have equal claim to 

 typeship. One example was presented to the Academy of Natural Sciences 

 of Philadelphia, whence it has long since vanished without trace (see Stone, 

 Proc. Acad. Nat. Sci. Philadelphia, for 1899, p. 23, 1899) . Our No. 985 

 seems to be the only one of the original series extant, in which case it 

 becomes the only possible type. 



A manuscript note of the late Charles W. Richmond states that the part of 

 the Proceedings containing the Bairds' description of Tyrannula flavivenlris 

 was issued not later than September 6, 1843. 

 Empidonax traillii alascensis A. R. Phillips 

 Auk 65 (4) : 509, October 22, 1948. 

 =Empidonax iraillii traillii (Audubon). See Aldrich, Wilson Bull. 



53:193,194,1951. 

 187242. Adult male. Charlie Creek=Kandik River (a stream entering 

 the Yukon River from the northeast near Charlieville) , east-central 

 Alaska. June 21, 1903. Collected by Wilfred H. Osgood. Original 

 nimiber 774. Received from the U.S. Fish and Wildlife Service. 

 Musclcapa Traillii Audubon 



Birds of America (folio) 1 (9) : pi. 45, 1828; Ornithological biography 

 1:236,1831. 

 =Empidonax traillii traillii (Audubon). See Oberholser, Ohio Journ. 



Sci. 18: 88-90, 1918; Aldrich, Wilson Bull. 53: 193-194, 1951. 

 1865. Adult (sex not indicated). "Woods along the prairie lands of the 

 Arkansas River," Arkansas. Received from Spencer F. Baird, who ac- 

 quired it from John J. Audubon. 

 A very full discussion of the claims of this specimen to typeship will be 

 found in Oberholser's study, to which reference is made above. 

 Empidonax traillii brewsteri Oberholser 

 Ohio Journ. Sci. 18 (3) : 93, January 1918. 

 158360. Adult male. Cloverdale, Nye County, Nevada. May 31, 1898. 

 Collected by Harry C. Oberholser. Original number 57. Received 

 from the U.S. Fish and Wildlife Service. 



