680 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



(41.4); tail, 46-61 (56.6), middle rectrices 10-18 (11.9); exposed 

 culmen, 11.5-12.5 (11.8).« 



Adult female. — Upper parts as in adult male, but lower rump and 

 upper tail-coverts darker (mostly purplish black or blackish, bronze) ; 

 four middle rectrices bluish black with basal portion of outer web 

 bronze-green, the tip with a very narrow mesial streak of whitish; 

 outermost rectrix with outer web white basally, passing into pale 

 browTiish gray distally, crossed by a broad subterminal band of blue- 

 black and broadly tipped (across both webs) with white; second and 

 third rectrices blue-black, with middle portion of outer web greenish 

 or bronzy gray, the second with a distinct, the third with a minute 

 (mesial) white tip; dim and throat opaque black (sometmies inter- 

 mixed with whitish) bordered along each side by a broad white stripe, 

 covering malar region ; other under parts mostly black medially (the 

 feathers of chest usually tipped with green), the sides of breast, sides, 

 and flanks mostly metallic green, the space between this and black 

 along middle line of abdomen white; bill, etc., as in adult male; length 

 (skuis), 70-75 (72); wmg, 38.5-40.5 (39.5); tafl, 22-24.5 (23.5), 

 middle rectrices, 12.5-14.5 (13.6); exposed culmen, 11-13 (12.2).^ 



Young male. — Similar to the adult female, but tail longer and more 

 deeply forked, and wdth more green on under parts. 



Immature male. — Similar to adult male (including tail), but with a 

 white rictal stripe and flank-patches, and green of under parts more 

 broken. 



a Ten specimens from Costa Rica. 



b Eight specimens. 



Locality. 



Wing. 



Ex. 



posed 



culmen. 



MALES. 



Ten adult males from Costa Rica 



Four adult males (P. c. convcrsii) from central Colombia (Bogotd.) 

 Two adult males from western Ecuador 



FEMALES. 



Eight adult females from Costa Rica 



Three adult females from western Ecuad6r 



41.4 

 42.6 

 41.5 



39.5 

 38 



11.9 

 11.3 

 11.7 



12.2 

 11. 8 



Except that they have longer bills, and that the females usually have the subterminal 

 black band of lateral rectrices narrower, 1 am unable to distinguish Costa Rican and 

 Panaman examples from those from western Ecuad6r; but they are, if anything, more 

 different than the latter from Bogotd specimens, representing true P. conversii. The 

 series from Ecuador is, unfortunately, too small for satisfactory comparison, consisting 

 of only two males and three females. Should a larger series prove the Costa Rican 

 specimens to be separable, I suggest that they bear the name Popelairia conversii 

 salvini Zeled6n (manuscript), Mr. Zeled6n having at one time contemplated so naming 

 the Costa Rican bird. (Type, no. 199271, coll. U. S. Nat. Mus., Bonilla, Costa .Rica, 

 April 4, 1905; R. Ridgway.) 



