812 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



71.5 (69); exposed ciilmen, 24; tarsus, 2.5-25.5 (25.2); middle toe, 

 15-16.5 (15.7).« 



Yucatan (Tizimin; Peto; Puerto Morelos; Cliichen-Itza; Meco 

 Island; Holbox Island; Mujeres Island) to coast of British Hon- 

 duras (forest near Manatee Lagoon).^ 



Aitila citreopygius (not Dasycephala citreopyga Bonaparte) Boucard, Proc. Zool. 



Soc, Lond., 1883, 449 (Tizimin, Yucatan). 

 Attila citreopygius ? Salvin, Ibis, 1889, .364 (Meco I., Holbox I., and Mujeres I., 



Yucatan; crit.). 

 Attila cozumelss (not of Ridgway) Sclater, Cat. Birds Brit. Mus., xiv, 1888, 



362, part (Holbox I., Meco I., and Mujeres I., Yucatan). 

 Attila gaumed Salvin and Godman, Biol. Centr.-Am., Aves, ii, sig. 17, Feb. 



1891, 134 (Tizimin, Yucatan; coll. Salvin and Godman). 

 [Attila] gaumeri Sharpe, Hand-list, iii, 1901, 169. 



ATTILA CITREOPYGUS COZUMEl^/E (Ridgway). 

 COZUMEL ATTILA. 



Similar to A. c. gaumeri, but rump and upper tail-coverts usually 

 much darker (tawny-ochraceous instead of ocher yellow), pileum 

 usually browner and more narrowly streaked,*^ streaks on throat 

 more grayish, and color of sides, flanks, axillars, and under wdng- 

 coverts buffy cinnamon, cinnamon-buff, or buff'^ instead of yellow- 

 ish buff or buff -yellow; averaging smaller. 



ttTwo specimens, from Puerto Morelos and Chichen-Itza. 



?>An adult male and a young female from near Manatee Lagoon, British Honduras, 

 must, I think, be referred to this form, although undoubtedly not typical, but indi- 

 cating unmistakable intergradation with A. c. citreopygus or A. c. salvim. In coloration 

 the adult male is, allowing for difference in condition of the plumage (which is 

 decidedly though not badly worn in the British Honduras specimen), practically 

 identical with adults from Yucatan, but the wing, tail, and tarsus are slightly longer 

 and the slightly larger. Two other adults from the same locality, taken in August 

 and October, respectively, and therefore possibly migrants, are, however, distinctly 

 referable to A. c. salvini, though intermediate between that form and A. c. citreopygus. 

 (See remarks on p. 806.) 



Measurements of the British Honduras specimen compared with those of an adult 

 male from Yucatan (Puerto Morelos) are as follows: 



cin a single specimen (the type) the pileum is decidedly more grayish than the 

 back, precisely as in A. c. gaumeri, the black streaks broader, and, on the forehead, 

 intermixed with white streaks. This specimen, in fact, although unfortunately the 

 type of A. cozumelx, is distinctly intermediate between that form and A. r. gaumeri, 

 having, besides, the axillars and under wing-coverts light ocher yellow or naples 

 yellow, instead of buff, cinnamon-buff, or buffy cinnamon, as in all other specimens 

 examined from Cozumel Island. 



