VOL. XVIII, PP. 111-112 MARCH 31, 1905 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



DESCRIPTION OF A NEW SPECIES OF WHIP-POOR- 

 WILL FPvOM MEXICO. 



BY E. W. NELSON. 



For the privilege of describing this strongly marked species I 

 am indebted to the courtesy of Dr. J. A. Allen and Mr. Frank 

 M. Chapman, of the American Museum of Natural History. 



Antrostomus notabilis sp. nov. 



Type from Victoria, Tamaulipas, Mexico, No ; 81,519, cT adult, Am. 

 Mus. Nat. Hist. (Sennett Collection), April 13, 1888. 



General Characters. Resembles A. macromystaz in color of upperparts, 

 but size decidedly larger and with white marking (buffy in females) on 

 outer tail feather reduced to a narrow diagonal band across tip as in Ni/cta- 

 greus yucatanicus&nd unlike any other species of Antrostomus in Mexico. 



Description of male (type). Crown and nape finely mottled grayish brown, 

 with a distinct buffy shade anteriorly; feathers on middle of crown and 

 nape heavily streaked with broad black centers ; sides of crown and nape 

 more narrowly streaked with same, the black streaks narrowly edged with 

 clearer gray than rest of crown ; back and sides of neck with scattered in 

 dications of a buffy collar ; middle of back and rump like middle of crown 

 but more narrowly streaked and general color a little duller ; scapulars 

 basally clear gray, slightly streaked with buffy, with large irregular termi 

 nal or subterminal black spots ; tertials mottled with gray and black, with 

 irregular black shaft streaks ; the light part of scapulars and tertials form 

 ing a pale area on each side of back ; top of closed tail dull black irregularly 

 mottled with dull buffy and gray forming poorly defined irregular bands 

 on terminal half of feathers ; primaries and secondaries dusky, with deep 

 buffy spots along outer webs (most strongly marked on primaries) ; under 

 side of primaries dusky, with a series of small indistinct buffy spots along 

 middle of inner webs on distal half of first primary ; other primaries with 

 16 PROC. BIOL. Soc. WASH., VOL. XVIII, 1905. (ill) 



