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 
brownish 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; chin and throat opaque black (sometimes 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., asin adult male; length 
(skins), 70-75 (72); wing, 38.5-40.5 (39.5); tail, 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 with 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. 
@ Ten specimens from Costa Rica. > Eight specimens. 
Middle} Ex. 
Locality. Wing. | Tail. rec- | posed 
trices. |culmen. 
MALES. 
Ten adult males from Costa Rica........-...00--- cece cece eee eee eee 41.4 56.3 11.2 11.9 
Four adult males (P. c. conversii) from central Colombia (Bogoté).-.... 42.6 55.2 11.2 11.3 
Two adult males from western Ecuad6r...............02-+-2202ee eee eee 41.5 57.7 15. 5 11.7 
FEMALES. 
Eight adult Jemales from. Costa Rica... +<+1 ser.eserecreevasevavesexxe 39.5] 23.5] 13.6 12.2 
Three adult females from western Ecuad6r..............22-...22-00-255 38 20.5 13.5 11.8 
Except that they have longer bills, and that the females usually have the subterminal 
black band of lateral rectrices narrower, I am unable to distinguish Costa Rican and 
Panaman examples from those from western Ecuadér; but they are, if anything, more 
different than the latter from Bogot4 specimens, representing true P.conversti. 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 conversti 
salvini Zeledén (manuscript), Mr. Zeledén 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.) 
