CONTOPtrS.— MYIAECHF8. 87 



Yucatan (Schotf^), Cozumel I. (Benedict ^^, Oawmer); Beitish Honduras, Orange 

 Walk (Gaumer) ; Guatemala, Chisec, Choctum, Cahabon, Eetalhuleu {0. S. & F. 

 B. G'.), Escuintla (iVaser^) ; Hondubas, Segovia river (Henderson'') ; Nicaragua, 

 Los Sabalos (Nutting ^^) ; Panama, Bugaba, Calovevora * (JrcS), Lion Hill (M'Lean- 

 nan^^), Paraiso (Hughes). — South America, Colombia, Venezuela, and Guiana to 

 the Amazons valley, Brazil, and the Argentine Kepublic ^. 



This is a small short-vpinged 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. Irachytarsus. C. depressi- 

 rostris we believe to be also referable to it. Some time ago Mr. Eidgway kindly sent 

 us his types for examination, and as we could not distinguish them specifically from 

 a specimen of C. braohytarsus from Escuintla, Guatemala, we then considered and still 

 consider them to belong to that species. 



MYIARCHUS. 



Myiarchus, Cabanis in Tscli. 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 Tyrannidse and is found through- 

 out the Neotropical Region and beyond it as far north as Canada (where M. crinitus 

 occurs in summer) and the Eocky Mountains, the summer-quarters of M. cinerascens. 

 Other species, such as M. magister and M. lawrencii, reach the Eio Grande valley, but 

 the majority of the known species are more strictly neotropical in their range. 



We now know twenty-six species of Myiarchus, 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 

 Mihulus. The wing is rounded, the 3rd and 4th quills being longest, 2nd = 5th, 

 1st = 7th ; the tail is rather long and nearly even, > ^ wing, < 5 tarsus. 



a. Majores (M. crinitus &c.). 

 a'. Mostrum angifistwm, elongatum, 'pectus haud flammulatum. 

 a". Eectrices externm in pogonio interna plerumque rufoe. 

 1. Myiarchus crinitus. 



Muscicapa crinita, Linn. Syst. Nat. i. p. 325 '. 



