380 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



cinnamon, the adult female with the cinnamon replaced by grayish white 

 or pale gray and the chest, etc., more rufescent or cinnamomeous. 



Range. — Southern Mexico to Guatemala, Honduras, and El Salvador. 

 (Monotypic.) 



Figure 21. — Dactylortyx thoracicus. 



KEY TO THE FORMS OF DACTYLOKTYX THORACICUS (GAMBEL) 



a. Chin, throat, cheeks and superciliaries tawny-orange (males). 

 h. Interscapulars with many blackish transverse markings; middle of abdomen 

 buffy (Jalisco to Guerrero in western Mexico). 



Dactylortyx thoracicus devius (p. 383) 

 hb. Interscapulars with few or no blackish transverse markings; middle of 

 abdomen whitish. 



