538 BTTLLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult Hiafe.— Length (skins), 137-147 (141.6); wing, 58.5-60 (59.1); 

 tail, 58-64.5 (61.6); exposed culmen, 15-18 (16.2); tarsus, 21-22.6 

 (21.8); middle toe, 13-15 (13.6).« 



Afhi.lt fi'iaale.—L&ngth. (skins), 133-140 (136.5); wing, 54.5-58.5 

 (56.5); tail, 59-59.5 (59.2); exposed culmen, 15.5-16 (15.7); tarsus, 

 20-22.5 (21.2); middle toe, 12.5-13 (12.7)." 



South-central Mexico, in State of Morelos (Yautepec; Puente de 

 Ixtla). 



Thryothorus felix grandis Nelson, Auk, xvii, .Tuly, 1900, 269 (Yautepec, More- 

 los; coll. U. S. Nat. Mus.). 



PHEUGOPEDIUS FELIX PALLIDUS (Nelson). 

 DTJRANGO WREN. 



Similar to P. f. felix but smaller, with upper parts much less 

 rufescent (pileum varying from deep cinnamon to nearly Isabella 

 color, back, etc., light olive-brown to nearly broccoli brown), lateral 

 under parts averaging paler and duller (nearest pale clay color), and 

 tail less distinctlj- barred with dusky. 



AdnU «(«/;.'.— Length (skins), 121-140 (129.9); wing, 53-58 (56.1); 

 tail, 50.5-55 (53.9); exposed culmen, 14.5-17 (16); tarsus, 20.5-22 

 (21.3); middle toe, 13-15 (13.6).^ 



Adtilt female.'-lj&ng'ih. (skins), 120-132 (123.8); wing, 51-55 (52.7); 

 tail, 46-53 (49.7); exposed culmen, 14-15 (14.8); tarsus, 20.5-21 (20.9); 

 middle toe, 12.5-13 (12.8).'' 



Western Mexico, in Std.tes of Sinaloa (Mazatlan; Escuinapa), 

 Durango (Chacala), and northwestern Michoacan (Los Eeyes), and 

 Territory of Tepic (Tepic; San Bias; Santiago). 



[Thryothorus] felix (not of Sclater) Baird, Review Am. Birds, 1864, 121, part.. — 



ScLATER and Salvin, Nom. Av. Neotr., 1873, 7, part. 

 thryothorus felix Lawrence, Mem. Bost. Soc. N. H., iii, 1874, 268, part (Mazatlan, 



Sinaloa). — Salvin and Godman, Biol. Centr.-Am., Aves, i, 1880, 93, part 



(Mazatlan).— Sharpb, Cat. Birds Brit. Mus., vi, 1881, 282, part (Mazatlan). 

 T\hryothorus] felix Ridgway, Man. N. Am. Birds, 1887, 552, part. 

 Pheugopedius felix Baird, Review Am. Birds, 1864, 126, part (Mazatlan). 

 [Thryothorus felix} a. felix Ridgway, Bull. Nutt. Orn. Club, iii, .Jan., 1878, 11, 



part (Mazatlan). 

 Thryothorus felix pallidus Nelson, Proc. Biol. Soc. Wash., xiii. May 29, 1899, 29 



(Chacala, Durango; coll. U. S. Nat. Mus.). 



PHEUGOPEDIUS FELIX LAWRENCII (Ridgway). 

 LAWRENCE'S WREN. 



Similar to P. f. pallidMS, but averaging decidedl}' paler, the back, 

 etc., grayer, lateral under parts very much paler (pale buff or cream 



a Six specimens. " Seven specimens, 



s Two specimens. <* Five specimens. 



