Tyrant- birds of Mexico. 441 



21. CoNTOPUs soRDiDULus, Sclatei", P. Z. S. 1859, p. 43. 

 Hab. S. Mexico, Orizaba (Bott.), and southwards to Guate- 

 mala. 



Mus. P. L. S. 



22. CoNTOPUs viRENS (Linn.) : Baird, Rep. p. 195. 

 Hab. Mexico, and southwards to Guatemala. 



Mus. P. L. S. 



23. Empidonax brachytarsus, sp. nov. 



Obscure cineraceus, pileo alis et cauda saturatioribus, uropygio 

 olivaceo vix tincto : tectricibus alarum minoribus et majori- 

 bus et secundariis extus ad apicem sordido albo stricte 

 marginatis : subtus dilutior, gula albicante, ventre medio 

 flavicante : tectricibus subalaribus rufescente vix tinctis : 

 rostro superiore corneo, inferiore flavido, pedibus nigris : 

 long, tota 53, alae 2'9, caudse 2*4, rostri a rictu 5*5, tarsi 5. 

 Hab. In Mexico Merid. ; Cordova (Salle), et Santecomapam. 

 Mus. P. L. S. 



I have two specimens of this little bird in my cabinet, one of 

 them being from M. Sailers first collection made at Cordova, and 

 the other received from M. Verreaux. Its general appearance 

 is more that of a Contopus, with which it also agi'ces in its short 

 tarsi ; but its much shorter wings induce me to arrange it with 

 Emjndonax, placing it next to Empidonax traillii of the U.S., 

 which has also short tarsi. The wings are rather longer than in 

 E, traillii, the second quill being longest, the third and fourth 

 slightly diminishing in length, and the fifth longer than the 

 first. The greenish tinge on the rump is hardly perceptible. 



24. Empidonax pusillus (Sw.) : Platyrhynchus pusillus, Sw. 

 Phil. Mag. 1827, p. 366 ? ; Baird, Rep. p. 194. 



Hab. Northern Mexico, Los Nogales (Kennerly). 



25. Empidonax minimus, Baird, Rep. p. 195. 



Hab. Whole of Mexico, Orizaba (Bott.) : Oaxaca, Playa Vi- 

 cente and Talea (Boucard). 

 Mus. P. L. S. 



26. Empidonax flaviventris, Baird, Rep. p. 198. 

 Hab. Whole of Mexico, Jalapa (de Oca). 



Mus. P. L. S. 



