^"laoi!^'] PKOCKE DINGS OF THE NATIONAL MUSEUM. 531 



Siuce retuniiiif? to Costa Rica I have exainiiu'd the Museo Nacional 

 series of thirty luteicapilla and [irariUs, iucUidin^ three additional 

 females of <iracilis, and am thoroiij^hly convinced that female of gra- 

 cilis has hitiierto been unknown or confounded with some other form. 



Euphoaia luinuta. 



Seven adult males from Costa Rica compared with a single male 

 (adult) iroin Sarayacu, Ecuador, are shaded with deeper orange on the 

 yellow of the lower j^arts and forehead, while the Ecuador bird has the 

 bill Just api)reciably larger. 



Ramphocelus costaricensis. 



In looking over the specimens of U. pasficrinii in the U. S. National 

 Museum collection, I lind a very good exainple of my recently described 



[ R. costaricensis (The Auk, January, 18!»1, p. OL'). The specimen (No. 

 42803, U. S. National Museum collection, Navarro, Costa Rica, Janu- 

 ary, 18()0, J. Cooper) agrees, as far as my memory serves me (having 

 no examples at hand for C()m[)arison), with my type, being perhai>s a 

 tritle brighter on the breast, and the wings and tail more dusky browu- 



i isli, or more like those of passerinii. Tiie specimen was originally 



' marked fenuile ( 9 ), but some one, at a latecdate, and with ink that has 

 not yet faded, has drawn a line across this aifd written below "Juv. S ." 



j Since returning to Costa Rica the Museo Nacional has received eight 



i additional exaniples of this new form. 



Chlorospingus pileatus. 



I have two young birds in i)luniage hitherto undesLiribed. No. 5416, 

 Museo Nacional d<; Costa liica, Volcan de Irazu, Ai)ril L'3, 181)1, is 

 evidently Just from the nest, as there is yet in the plumage some of the 

 I nestling down. Above it is light olive-brownish, wings and tail black- 

 • ish, the latter with dull olive-yellowish edges ; prevailing color of wing- 

 coverts like the edges of the quills. Head black, crown bordered with 

 a broad white stripe extending from Just in front of the eye to the 

 nai)e. Lores, supraocular stripe, ami auriculars black. Below prevail- 

 ing color grayish olive- bull, lightest in the center, with ill-detined 

 blackish or dusky streaks; sides more uniform olirt'; chin, throat, and 

 cheeks asliy whitish ; bend of wing whitish. No. .'5095, S Juv,, Volcau 

 de Pods, July 5, 188!), A. Alfaro, is a mucii older bird. Above brown- 

 ish olive-green, wings and tail dusky, edged with the color of the back, 

 slightly the brighter on tlic primaries; iiead black; numy yellowish 

 feathers in the whitish stripe on the sides of the crown. Below cheeks, 

 throat, and breast olive-yellowish, with indistinct dusky striations; an 

 indistinct dusky line along the sides of the rhroat, Joining the auricu- 

 lars posteriorly; sides, belly, and crissum dusky or brownish olivc- 

 greeuish. 



