150 PR0CEEDIN08 OF THE NATIONAL MUSEUM. vol.41. 



DRYOBATES SCALARIS AGNUS, new subspecies. 



Cliars. suhsp. — Like Dryohates scalaris sinaloensis, but decidedly 

 larger; back and scapulars darker, the black bars wider, the white 

 bars narrower; malar strii)e not obsolete at base of bill, though 

 sometimes obsolescent; black bars on outer tail-feathers usually 

 wider; streaks on sides of breast rather broader. 



Description. — Type, adult male, No. 164107, U.S.N.M.. Biological 

 Survey collection; Camoa, Rio Mayo, Sonora, November 6, 1898; 

 E. A. Goldman. Crown and nape black, the feathers of the former 

 subterminally dull white, terminally poppy red, this producing a 

 mottled appearance on the top of the head, but merging into a solid 

 band of red on the occiput and anterior hind neck; remaming upper 

 parts black, all, excepting the superior tail-coverts, barred with white — 

 these white bars decidedly narrower than the black interspaces; 

 tail black, the three outer pairs of rectrices, including the dwarfed 

 outermost one, barred with white except on basal portion of inner 

 webs of the third pair, but the outer vanes of the second (the first long 

 pair) and third wholly white basally; the fourth pair tipped, and 

 broadly margined on distal two-thirds of outer vanes, with wdiite; 

 wings black, with numerous white spots, which, on the tertials, 

 become fairly well-defined bars; sides of head and neck rather light 

 smoky brown; a broad postocular and a malar stripe of black, 

 which meet on the side of the neck; nasal tufts and lower surface 

 smoky brown, the crissum paler; sides of breast and body with broad 

 streaks of black, the flanks and crissum with bars of the same; 

 lining of wing brownish white, spotted with black. 



Measurements. — Male^: Wmg, 100-101.5 (average, 100.8) mm.; 

 tail, 58-59.5 (58.8); exposed culmen, 20-23 (21.5); tarsus, 17; 

 middle toe, 13. 



Female:- Wing, 95-98.5 (96.8); tail, 56.5-60.5 (58.5); exposed 

 culmen, 19.5-20 (19.8); tarsus, 16-16.5 (16.3); middle toe, 12. 



Type-locality. — Camoa, Rio Mayo, Sonora. 



Geographical distribution. — Southern Sonora, Mexico: northwest to 

 Batamotal, southwestern Sonora; and southeast to Camoa, south- 

 eastern Sonora. 



Of this race four examples have been seen, from the subjoined 

 Mexican localities : 



Sonora. — Camoa; Batamotal. 



DRYOBATES SCALARIS LUCASANUS (Baird). 

 Pimis lucasanusBAiR-D, Proc. Acad. Nat. Sci. Phila., 1859, p. 302 (Xantus MS.) 



Chars, suhsp. — Resembling Dryohates scalaris agnus, but somewhat 

 larger; lower surface much lighter, and the sides of breast spotted, 

 rarely streaked; black bars on upper parts decidedly broader; white 



> Two specimens, from soutliem Sonora, Mexico. ^ Two specimens, from the same locality. 



