78 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



MICRORHOPIAS BOUCARDI BOUCARDI (Sclater). 



BOUCARD'S ANTWREN. 



Adult male. — General color deep black, passing into slate color on 

 sides and flanks; interscapulars extensively pure "white beneath the 

 surface (partly exposed); anterior portion of lesser wing-covert area 

 (except on bend of wing) white, the other lesser coverts and middle 

 coverts with a small roundish terminal spot of white; greater coverts 

 broadly tipped with white, forming a very conspicuous band across 

 wing; rectrices (except middle pair) broadly tipped with white (the 

 white tips growing smaller toward middle rectrices); under wing- 

 coverts (except along border of wing) and broad edgings to inner web 

 of remiges white; bill black; iris brown; legs and feet blackish 

 (grayish blue in life); length (skins), 98-111 (106); wing, 47-50.5 

 (48.6); tail, 43-49 (45.6); culmen, 13-14.5 (13.7); tarsus, 14.5-16 

 (15.5); middle toe, 8.5-9 (8.9).« 



Adult female. — Above marked with white as in adult male (that on 

 interscapular region more restricted, however), but black of head, 

 neck, back, and rump replaced by dark slate color or blackish slate 

 (more or less intermixed with black on interscapular region) ; under 

 parts (including malar region) plain rufous-tawny, deepest on throat 

 and chest; under wing-coverts and edges of inner webs of remiges 

 white, as in adult male; bill, etc., as in adult male, but the former 

 usually more brownish; length (skins), 96-117 (107); wing, 46.5-49 

 (47.7); tail, 43.5-47.5 (45.6); culmen, 12.5-14.5 (13.3); tarsus, 

 14.5-16 (15.4); middle toe, 8.5-9.5 (8.8).^ 



