248 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult female.— Length (skin), 140 ;« wing, 86-89.5 (88); tail, 47.5; « 

 exposed culmen, 17-19.5 (18); tarsus, 16; outer anterior toe, 11-11.5 

 (11.3).'' 



Coast district of southern Vera Cruz (Jaltipan; Tlalcotalpam ; 

 Pasa Nueva). 



Dryobates scalaris ridgwayi Oberholser, Proc. U. S. Nat Mus., xli, June 30, 1911, 

 140, 143 (Jaltipan, s. Vera Cruz, Mexico; coll. U. S. Nat. Mus.). 



DRYOBATES SCALARIS PERCUS Oberholser. 



COMITAN WOODPECKER. 



Similar to D. s. scalaris in size, but black bars on back, etc., broader, 

 and lateral under parts with larger and more numerous black spots, 

 the spots extending entirely across chest; red of occiput, etc., in adult 

 male slightly deeper (less orange-red or scarlet). 



Adult male.— Length (skins), 136-141 (139); wmg, 94-99 (96.5); 

 tail (imperfect); exposed culmen, 17.5-20 (18.8); tarsus, 17; outer 

 anterior toe, 11.5-12.5 (12).*^ 



Adult female.— Length (skins), 132-142 (137); wmg, 90-94.5 

 (92.3); tail (imperfect); exposed culmen, 16.5-18 (17.3); tarsus, 

 16-17 (16.5); outer anterior toe, 11.5-12 (11.7).'' 



State of Chiapas, southern Mexico (San Vicente; Comitan; Tuxtla 

 Gutierrez) . 



Dryobates scalaris percus Oberholser, Proc. U. S. Nat. Mus., xli, June 30, 1911, 

 140, 144 (Comitan, Chiapas, s. Mexico; coll. U. S. Nat. Mus.). 



DRYOBATES SCALARIS PARVUS (Cabot). 



SISAL WOOBPECKER. 



Similar to D. s. ridgwayi in small size (wing averaging slightly 

 shorter), but differing in having the lateral under parts much more 

 heavily marked with black, the markings mostly in the form of 

 rounded or cordate spots (instead of streaks), in broader black and 

 narrower wliite bars on back, etc., anterior portion of malar region 

 more blackish, and red of occiput, etc., in adult male slightly deeper 

 Gess orange). 



Adult male.— Length (skins), 141-155 (149); wing, 87-92 (89.1); 

 tail, 46-53.5 (48.4); exposed culmen, 18-20.5 (19.4); tarsus, 15.5-17 

 (16.3); outer anterior toe, 11-12.5 (11.5).^ 



Adult female.— Length (skins), 139-150 (144); wing, 86-89.5 (87); 

 tail, 46-49 (47.3); exposed culmen, 16-18 (16.9); tarsus, 15.5-16.5 

 (15.9); outer anterior toe, 11-12 (11.5).« 



o One specimen. c Two specimens. < Six specimens. 



b Three specimens. d Ten specimens. 



