138 A Catalogue of the Birds found in Costa Rica. 



pale fulvous brown; middle of abdomen and under tail coverts 

 white ; bill black ; the tarsi and toes appear to have been flesh 

 color. * 



Length (skin) about 101 in. ; wing 51 ; tail 4 J ; bill \\ ; tarsi 1£. 



Habitat. Navarro. Collected by Juan Cooper. 



Type in Mus. Smith. Institution, No. 43044. 



Remarks. This species is a close ally of Z. rufaxilla, Z. 

 albifrons, Gray,Z. verreauxi, Bonap.,and L. brachypt< ra, Gray : 

 according to Mr. J. Verreaux, Z. albifrons, Bonap., Consp. 

 A vium, II. p. 74, is the same as the last named species. 



The bird now described comes nearest to Z. brachyptera, but 

 that has the front more of a grayish cast, and the cheeks brown- 

 ish without any tinge of vinaceous ; the new species is a little 

 darker on the breast and sides, the under wing coverts are of a 

 brighter color, and the inner webs of the quills are cinnamon, 

 whereas in brachyptera there is only a mere edging of pale 

 salmon on the inner webs of the quill feathers; this last is a 

 striking character of Z. brachyptera, as exhibited in fourteen 

 specimens before me. 



Z. albifrons has a bluish front and crown, is much browner 

 above, and has the sides of the neck and the breast of a brown- 

 ish cast. 



Z. verreauxi is much like brachyptera and riottei in the up- 

 per plumage, bul is very much paler and more roseate below. 



Z. rufaxilla has the front and crown bluish, bul differs from 

 all others in having the neck in front and the sides of the head 

 of a dull brownish rufous. 



/.. riotU i has a larger and stronger bill than any of the allied 



In all the Bpecies above alluded to, there is quite a close 

 general resemblance, and it is rather difficult to point out in- 

 telligibly by description, the difference in shades of coloring 



which mainly separates some of the Bpecies, J el in an autoptical 



examination the differences are very appreciable. 

 !.'<;. /'< risU /■</ cin< r, a, I < nun. 



