BIRDS FROM COSTA RICA—WETMORE 59 
MYIODYNASTES MACULATUS DIFFICILIS Zimmer 
Myiodynastes maculatus dificilis Zimmer, Amer. Mus. Nov., No. 963, Nov. 18, 
1937, p. 9 (Bebedero, Costa Rica). 
On October 30 I shot a female of this flycatcher at the border of a 
heavy stand of forest below Liberia. This form has a wider range in 
Costa Rica than is generally understood, since we have one specimen 
taken by José Zeledén at Bonilla, April 5, 1905, and another secured 
by Anastasio Alfaro at Alajuela, April 21, 1889. 
MEGARYNCHUS PITANGUA MEXICANUS (Lafresnaye) 
Saurophagus mexicanus LAFRESNAYE, Rev. Mag. Zool., 1851, p. 473 (México). 
These interesting flycatchers were common in open woodland along 
the Rio Liberia and the Rio Colorado, where I secvred specimens on 
October 28 and November 1 and 3. At the Hacienda Santa Maria I 
recorded a pair in the coffee plantation near the house on November 14 
and collected the female. In life the similarity of this species to the 
Derby flycatcher is so striking that the two may be confused. The 
resemblance is mainly in size and color pattern as the notes are quite 
distinct. Megarynchus has a curious rattling call given in a higher 
tone than the notes of the other species. It is also more liable to be 
found in forest than the other. 
Skins from the southern part of the range in Costa Rica and from 
Nicaragua appear somewhat deeper and richer colored than speci- 
mens from México. 
MYIOZETETES SIMILIS TEXENSIS (Giraud) 
Muscicapa texensis Giraup, A description of sixteen new species of North merican 
birds, 1841 (p. 57), pl. 1 (‘“Texas’’). 
At the Hacienda Santa Maria these flycatchers came in pairs into 
trees about the house, where I took specimens on November 9 and 14. 
They fed at the ripe oranges opened by orioles and woodpeckers. I 
heard them utter an explosive chattering song of harsh notes. 
The three specimens secured are like those from farther north in 
Central America. 
PITANGUS SULPHURATUS GUATIMALENSIS (Lafresnaye) 
Saurophagus Guatimalensis LAFRESNAYE, Rev. Mag. Zool., 1852, p. 462 (Gua- 
temala). 
Near Liberia where these flycatchers were common I secured 
specimens on October 27 and November 17. They were seen regularly 
in the town, aad it was my impression that some came in each night to 
roost in the great fig trees of the park, for at sunrise I frequently 
found a dozen or more calling there. At the Hacienda Santa Maria 
they were scattered through the open pastures below the house. 
