FAMILY FORMICARIIDAE 



229 



HYLOPHYLAX NAEVIOIDES (Lafresnaye) : Spotted Ant-bird, 



Corregidor 



Figure 19 



Small ; tail short ; back chestnut-brown with a concealed white 

 patch ; black wings heavily marked with brown ; throat in male, black ; 

 in female, buff. 



Description. — Length 105-120 mm. Adult male, crown and hind- 

 neck grayish brown to olive-brown, changing to gray on forehead, 

 lores and side of head behind the eye; back chestnut (with the con- 

 cealed central area white) changing to dull cinnamon on the upper 

 tail coverts ; wings black, with middle and greater coverts and secon- 



FiGURE 19. — Spotted ant-bird, corregidor, Hylophylax nacvioides, male. 



daries tipped broadly with cinnamon-rufous ; lesser coverts spotted 

 with white ; tail grayish brown, with a subterminal band of black, 

 tipped with cinnamon, outer rectrices with tips paler brown to white ; 

 throat and malar area black ; lower f oreneck to abdomen white, the 

 breast and anterior area of the sides spotted heavily with black; 

 sides gray, passing to brownish buff on flanks ; under tail coverts pale 

 brownish buff; under wing coverts and axillars mixed gray and 

 white, spotted with black on the carpal edge. 



Adult female, crown and hindneck dull brown ; back dull chestnut 

 with concealed white area small ; wing markings as in male, except 

 that the lesser coverts are spotted with buff; side of head blackish 



