32 Ridgway Diagnoses of Some New Forms of Picidss. 



Colaptes chrysoides mearnsi subsp. nov. 



Type from Quitovaquito, Arizona. No. 132,871, U. S. Nat. Mus. Adult 

 male. February 2, 1894. Dr. Edgar A. Mearns, U. S. A. 



Similar to C. c. chrysoides but decidedly larger and paler, with pilemn 

 more strongly cimiamomeous, black bars on back, etp., narrower, spots on 

 outer web of primaries more conspicuous ( primary coverts also sometimes 

 spotted), gray of throat, etc., lighter, and spots on under parts usually 

 smaller. Adult male (type): Wing, 140; tail, 96; exposed cul men, 35.5; 

 tarsus, 27; outer anterior toe, 23. 



There are apparently three easily characterized geographic forms of this 

 species, as follows: 



Colaptes chrysoides chrysoides ( Malherbe) . Southern Lower California. 



Colaptes chrysoides brunnescens Anthony. Middle Lower California. 



Colaptes chrysoides mearnsi Ridgway. Arizona, extreme southeastern 

 California and northern Lower California, and southward to southern 

 Sonora. 



Centurus chrysogenys flavinuchus subsp. nov. 



Type from Acapulco, Guerrero, southwestern Mexico. No. 154,935, 

 U.S. Nat. Mus. (Biological Survey Coll.). Adult male. January 13, 1895, 

 Nelson and Goldman. 



Similar to C. c. chrysogenys (Vigors)* but adult male with nape bright 

 orange-yellow (instead of orange-red), strongly contrasted with red of 

 crown; adult female with nape yellow, instead of orange or orange-red. 

 Adult male (type) : Wing, 124; tail, 75; exposed culmen, 26; tarsus, 21.5; 

 outer anterior toe, 20. 



Centurus uropygialis brewsteri subsp. nov. 



Type from Santiago, southern Lower California. No. 151,827, U. S. 

 Nat. Mus. Adult male. November 22, 1887, M. Abbott Frazar, 

 Similar to C. u. uropygialis, of Arizona, etc., but smaller, with rela- 

 tively ( of ten absolutely ) larger bill ; bars on back, etc., averaging decidedly 

 narrower, black bars on lower rump and upper tail-coverts narrower and 

 more numerous, and white bars on lateral rectrlces, as well as black ones 

 on inner web of middle rectrices, narrower. Adult male (type): Wini;, 

 129; tail, 79.5; exposed culmen, 30; tarsus, 23; outer anterior toe, is. 



Chloronerpes rubiginosus trinitatis subsp. nov. 



Type from Princestown, Trinidad. No. 59,410, Am. Mus. Nat. Hist. 

 Adult male. March 3, 1893, Frank M. Chapman. 



Smaller and more richly colored than C. r. rubiginosus, from the arid 

 coast district of Venezuela, the back, etc., brighter, more tawny, olive, 

 chest more brownish dusky with narrower bars of yellowish and more or 

 less strongly suffused with dull orange or tawny. Adult male (type): 

 Wing, 104mm.; tail, 01.5; culmen, 23.5; tarsus, 20.5. 



* The name Centurus elegans (Picus elegans Swainson, 1S27) can not be used for this 

 species, being preoccupied by Picus elegans Miiller, 1776. 



Centurus chrysogenys chrysogenys is confined to the State of Sinaloa and Territory 

 of Tepic. 



