504 BIRDS OF THE REPUBLIC OF PANAMA PART 3 



the young. The two eggs that make the set are described as dull white 

 to buff, with spots or blotches of light or bright brown, and lilac. 

 Skutch gives the average in 16 eggs as 16.4x13.4 mm. The young 

 at hatching are pink-skinned and without down. 



James A. Karr, near Gamboa, found a nest with two eggs on 

 July 4, 1969. A nest of similar form and location, apparently that of 

 the previous year, was seen nearby. 



As a species, Platyrinchus coronatus ranges from northern Hon- 

 duras through Central America and South America to Brazil and 

 northern Bolivia. In the four subspecies currently recognized, the 

 race superciliaris is distinguished by brighter yellow on the lower 

 surface, and paler coloration on the back. 



PLATYRINCHUS MYSTACEUS NEGLECTUS (Todd): White- 

 throated Spade-bill, Piquichato Gargantiblanco 



Platytriccus albogularis neglectns Todd, Proc. Biol. Soc. Washington, vol. 32, 

 June 27, 1919, p. 114. (La Colorada, Boyaca, Colombia.) 



Small ; tail short ; bill broad, flat ; darker, with throat white. 



Description. — Length 90-95 mm. Adult male, crown dark olive, 

 with a large, partly concealed central area of bright yellow, in some 

 tinged with buff, the feathers in part tipped with olive ; hindneck, back, 

 scapulars, lesser wing coverts, alula, and rump brownish olive to 

 somewhat reddish brown ; upper tail coverts averaging somewhat 

 paler ; wings dusky, edged with somewhat reddish brown ; middle and 

 greater coverts tipped with brown, forming rather indistinct wing 

 bars ; primary coverts dull black ; tail dusky, edged lightly with brown ; 

 lores and side of head dusky; a dull white streak on upper edge of 

 loral area ; a prominent ring around eye, and an indistinct spot on the 

 auricular area, brownish buff ; bare edge of the somewhat enlarged 

 eyelids, black ; line down ramal area buff ; throat and f oreneck white ; 

 chest, sides, and flanks huffy brown ; lower breast and abdomen pale 

 yellow ; under tail coverts dull white ; axillars and under wing coverts 

 yellowish white, the latter centrally dull brown ; inner webs of wing 

 feathers edged with dull brown. 



Adult female, similar to male, but crown patch lacking, or, rarely, 

 very slightly indicated. 



Juvenile, without crown patch ; more reddish brown above. 



A female, taken at El Volcan, Chiriqui, March 15, 1965, had the 

 iris very dark reddish brown ; cutting edge of mandible dull yellowish 

 white; rest of bill black; gape, a line inside the mouth around the 

 inner edge of the mandible, and the tongue dull light orange ; tarsus 



