250 TYEANNID^!. 



3. Myiarchus nuttingi. 



Myiarchus nuttingi, Ridgw. P. U.S. N. M. v. p. 399, vi. pp. 379, 393 

 (Nicaragua) ; id. Proc. Biol. Soc. Wash. ii. p. 92 ; id. Man. N. A. 

 B. p. 334. 



Nearly similar to M, mexicanus and M. cinerascens, but with the 

 inner webs of all the lateral rectrices either wholly rufous or with a 

 very narrow strip of blackish next to the shaft on the outer feather. 

 (Hide/way.) 



Hub. Tehuantopec and south to Costa Rica and Nicaragua. 



I have as yet seen only one example of this apparently somewhat 

 doubtful species, which comes very near M. mexkanus. 



a. $ ad. sk. Costa Rica (Carmiol). Salvin-Godman Coll. 



4. Myiarchus mexicanus. 



Tyrannula mexicana, Kaup, P. Z. S. 1851, p. 51. 



Myiarchus cooperi, Baird, B. N. Am. p. 180; Scl. P.Z.S. 1859, 



p. 384 ; id. Ibis, 1859, p. 440 (Mexico) ; id. Cat. A. B. p. 232 ; 



Scl. et Salv. Ibis, 1859, p. 122 (Guatemala) ; iid. P. Z. S. 1870, 



p. 837 (Honduras). 

 Myiarchus crinitus cooperi, Coues, Pr. Ac. Sc. Phil. 1872, p. 67 ; id. 



Key, 1884, p. 435; Baird, Breiv. et Ridgw. N. A. B. ii. p. 331. 

 Myiarchus mexicanus, Dresser, Ibis, 1865, p. 473 (Texas) ; Scl. P. Z. S. 



1871, pp. 84, 85; Scl et Salv. Nomencl. p. 52; Ridgw. Pr. U.S. 



N. M. iii. p. 13 ; id. Man. N. A. B. p. 333. 

 Myiarchus crinitus erythrocercus, Coues et Semi. Bull. U.S. G. S. iv. 



p. 32 (Texas) ; Coues, Key, 1884, p. 435. 

 Myiarchus erythrocercus, var. cooperi, Ridgw. P. U.S. N. M. i. 



p. 138. 

 Myiarchus mexicanus magister, Ridgw. Proc. Biol. Soc. Wash. ii. 



p. 90; id, Man. JV. A. B. p. 333. 

 Myiarchus erythrocercus, Brewer, Ibis, 1878, p. 205 (Texas). 



Above brownish cinereous, crown rather darker ; wings blackish, 

 primaries narrowly edged with rufous, secondaries and coverts more 

 broadly with dirty white ; tail blackish, all the lateral rectrices with 

 the greater part of the inner web rufous, leaving only a narrow 

 blackish border alongside the shaft : beneath, throat and breast pale 

 cinereous ; belly and under wing-coverts pale sulphur-yellow ; inner 

 margins of rectrices pale rufous; bill dark horn-colour; feet blackish : 

 whole length 7 - 8 inches, wing 4, tail 3'5. Female similar. 



Hah. Mexico, Yucatan, and Honduras. 



I confess I cannot see the necessity for dividing this species into 

 two subspecies solely on size, as Mr. Ridgway has done ; nor do I 

 understand the supposed geographical boundaries between the two 

 subspecies. The specimen that agrees best with T. mexicana of Kaup 

 is specimen a ; specimen 6, from Oaxaca, is nearly similar, but very 

 slightly longer in the wing. These are from Western Mexico, but 

 so are also e and / (from the Tres Marias), which are decidedly 

 larger. Again, in the series from Yucatan and its islands there is 

 much diversity in size. So on the whole I rather doubt whether 

 tho size has much to do with the distribution. 



