88 ARKIV FÖR ZOOLOGI. BAND 13. N:0 4. 



*58. Empidonax traillii alnorum (Brewster.) 



Empidonax traillii alnorum Thayer and Bångs, Bull. Mus. Comp. Zoöl. 

 XLVI. 1905. 153 (Saboga, April II to 13) — Ridgway, Birds North 

 Middle Am. IV. 1907. 558 (Saboga). 



The Ålder Flycatcher was not collected by Dr. Bovallius. 

 Win ter range: Flies southward through Central 

 America to Ecuador. 



*59. Empidonax traillii traillii (Audubon). 



Empidonax traillii traillii Thayer and Bångs. Bull. Mus. Comp. Zoöl. XLVI. 

 1905. 153 (Saboga, April 13) — Ridgway, Birds North Middle Am. IV. 

 IV. 1907. 555 (Saboga). 



Traill's Flycatcher was not collected by Dr. Bovallius. 



Winter range: Central America south to Colombia. 

 From Panama mainland I can find but one record of this 

 bird, Jewel (Auk. XXX, 1913, 427) took one specimen at Ga- 

 tim on January 14, 1912. He remarks, that he has no other 

 record. 



*60. Myioclianes virens (Linné). 



Horizopus virens Thayer and Bångs, Bull. Mus. Comp. Zoöl. XLVI. 1905. 



153 (Saboga; Pacheca; April 6 to 14). 

 Myiochancs virens Ridgway, Birds North Middle Am. IV. 1907. 518. (Saboga; 



Pacheca). 



Bovallius' Collection: 1 c^, Bayoneta, April 16. 



Winter range: The Wood Pewee goes in winter south- 

 ward through Central America to Peru. Jewel (1. c. p. 427) 

 records it as not uncommon during the winter months in 

 Panama mainland. The earliest date he found, was October 

 15th and the latest January 14th. 



61. Myiarchus ferox panamensis (Lawrence). 



Myiavchus panajnensis Bangs, Auk. XVIII. 1901. 30 (San Miguel). 



Myiarchus ferox panamensis Nelson, Proc. Biol. Soc. Wash. XVII. 1904. 

 29 (San Miguel; crit. ) — Thayer and Bangs, Bull. Mus. Comp. Zoöl. 

 XLVI. 1905. 153 (San Miguel; Saboga; Pacheca) — Ridgway, Birds 

 North Middle Am. IV. 1907. 640 (San Miguel; Saboga; Pacheca). 



Bovallius' Collection: 1 $, Saboga, March 31. 

 Bangs says that in the San Miguel series the wings seem 

 to average a trifle shorter and the back is very slightly darker 



