NO. 3 NEW BIRDS FROM PANAMA AND VICINITY NELSON II 



holds between the birds of the two areas the southern bird may re- 

 quire separation as a distinct subspecies. The present form is based 

 on a series of ten specimens. 



HERPSILOCHMUS RUFIMARGINATUS EXIGUUS, subsp. nov. 

 Rufous- winged Antvireo 



Type. — No. 238539, adult male, U. S. National Museum, Biologi- 

 cal Survey Collection, from Cana (at 3,500 feet), eastern Panama; 

 collected June 6, 1912, by E. A. Goldman (collector's number 



I5844)- ■ 



Distribution. — Known from type locality and from Boca de Cupe 

 at 250 feet above sea level on the adjoining lowlands. 



Subspccific characters. — Smaller than H. rufimarginatus with 

 larger bill ; the male differs in having a broad black band extending 

 as a continuation from black crown and nape down middle of back 

 and rump, this black on back varied with a slight mixture of the 

 bordering gray ; cheeks, chin and throat white without trace of yel- 

 low suffusion ; female browner above and deeper yellow below. 



Description of male (type). — Top of head, back of neck and ex- 

 tension of same in a broad band down middle of back and rump 

 black, this black band varied by slight mixture of gray especially on 

 the front of shoulders ; sides of neck as well as sides of both back 

 and rump gray ; broad superciliary stripe of dull white with fine 

 black edges to feathers ; blackish loral spot and black postocular 

 stripe ; sides of head below eyes, chin and throat, dull white, feathers 

 slightly margined with blackish and no yellow suffusion ; median 

 part of breast and abdomen dull pale lemon yellow ; sides of breast and 

 flanks much paler and grayer ; wings black with bright white ter- 

 minal spots on coverts forming two wing bands, that on lesser coverts 

 broken, on greater coverts larger and more uniform ; two inner- 

 most tertials strongly edged with white, other tertials, secondaries 

 and primaries edged with rufous chestnut ; middle pair of tail 

 feathers dark gray with narrow black shaft line broadening sub- 

 terminally and tipped with white ; outer pair of feathers black with 

 terminal half of outer web and fifth of inner web white, other tail 

 feathers black with small white tips ; female with top of head and 

 postocular stripe chestnut; back and rump brownish olive gray; tail 

 with more white on tips and outer webs of all but inner two pairs 

 of feathers than in male; wings and entire under parts similar to 

 male but deeper yellowish with a wash of pale huffy on sides of 

 breast. 



