CONTOPUS.—MYIARCHUS. 87 
Yucatan (Schott), Cozumel I. (Benedict °, Gaumer); British Honpuras, Orange 
Walk (Gaumer); Guatemata, Chisec, Choctum, Cahabon, Retalhuleu (0. S. & F. 
D. G.), Escuintla (Fraser®) ; Honpuras, Segovia river (Henderson") ; Nicaracva, 
Los Sabalos (Nutting 11); Panama, Bugaba, Calovevora 4 (4rcé), Lion Hill (M*Lean- 
nan 25), Paraiso (Hughes).—Souta America, Colombia, Venezuela, and Guiana to 
the Amazons valley, Brazil, and the Argentine Republic ®. 
This is a small short-winged resident race of this section of Contopus, tolerably 
common from the State of Vera Cruz southwards through Yucatan and Guatemala to 
Panama and thence throughout the greater portion of Tropical South America. In 
Guatemala we found it in the forest regions on both sides of the cordillera up to an 
elevation of about 1500 feet. 
Regarding the synonyms of this bird which have been founded on Central-American 
specimens, C. schotti is now admitted on all hands to be C. brachytarsus. C. depressi- 
rostris we believe to be also referable to it. Some time ago Mr. Ridgway kindly sent 
us his types for examination, and as we could not distinguish them specifically from 
a specimen of C. brachytarsus from Escuintla, Guatemala, we then considered and still 
consider them to belong to that species. 
MYIARCHUS. 
Myiarchus, Cabanis in Tsch. Fauna Per., Aves, p. 152 (1845) (type Muscicapa ferox, Gm.) ; Scl. 
Cat. Birds Brit. Mus. xiv. p. 246. 
Myiarchus is one of the most characteristic genera of Tyrannide and is found through- 
out the Neotropical Region and beyond it as far north as Canada (where M. crinitus 
occurs in summer) and the Rocky Mountains, the summer-quarters of M. cinerascens. 
Other species, such as WZ. magister and UM. lawrencii, reach the Rio Grande valley, but 
the majority of the known species are more strictly neotropical in their range. 
We now know twenty-six species of Mytarchus, of which ten occur in our region. 
The relationship of Myiarchus is evidently with Tyrannus, but it is of slighter build, 
with longer tail and more slender bill. There is no occipital crest and the outer wing- 
feathers have their inner webs entire to the tip and not marginate as in Tyrannus and 
Milvulus. The wing is rounded, the 3rd and 4th quills being longest, 2nd = oth, 
Ist = 7th; the tail is rather long and nearly even, > $ wing, < 5 tarsus. 
a. Majores (M. crinitus &c.). 
al. Rostrum angustum, elongatum, pectus haud flammulatum. 
a’. Rectrices wa in pogonio interno plerumque rufe. 
1. Myiarchus crinitus. 
Muscicapa crinita, Linn. Syst. Nat. i. p. 325°. 
