120 
Messrs. Sclater and Salvin on the 
found a short distance from the village, up the stream of the 
river Guacalate. Sometimes, however, it occurs about the lake. 
In its actions it is lively and restless, little resembling the Ty¬ 
rants in these respects. It is always found near water, and is 
generally to be seen sitting on a stone on the margin, from 
which it constantly darts to seize a fly or insect from the surface. 
Mr. Gould possesses a Guatemalan example of this species in 
no way differing from the Duenas bird. 
Subfam. TyraSninjE. 
137. Attila citreopygia, Bp.; Sclater, P. Z. S. 1857, p.228. 
Transmitted by Mr. Skinner. In Mr. Gould's collection. 
138. Scaphorhynchus MEXICANUS, Lafr. R.Z. 1851, p.473. 
Transmitted by Mr. Skinner. 
_ \ 
139. Pitangus derbianus (Kp.) : Saurophagus derbianus , 
Kaup, P. Z. S. 1851, p. 44, pi. 36: Sauropliagas guatemalensis , 
Lafr. B. Z. 1852, p. 462. 
This species occurs abundantly at Belize in December. At 
Duenas it appears to be only a summer visitant, as it was found 
breeding there in the month of May, not having previously been 
observed. It builds a large loose nest with a great deal of 
superfluous matter about it, the entrance being at one side. The 
single nest found was composed entirely of small twigs, and 
was placed at the end of a branch about twenty feet from the 
ground. The eggs were laid about the third week in May. 
They are slightly pear-shaped, and in colour of a pale creamy 
white, spotted and blotched with brick-red; they measure, 
axis 1 in. 2\ lines; diam. 10± lines. 
140. Myiodynastes luteiventris, Sclater, P. Z. S. 1859 
(Jan. 25th). 
transmitted by Mr. Skinner. In the collections of Mr. 
Gould and O. S. 
141. Tyrannus i x trepi du s (Vieill.). (N.A.) 
Air. Gould's collection contains an example of this bird trans¬ 
mitted to him by Mr. Skinner. 
