200 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



UROCHROMA COSTARICENSIS Cory. 



RED-FROHTED PARROTLET. 



Similar, to U. dilectissima but forehead and anterior part of crown 

 red, instead of blue, a large red suborbital spot, and with more red on 

 under wing-coverts. 



Adult male. — Whole forehead together with anterior half or more 

 of crown, and a large suborbital spot dull scarlet-red or Chinese ver- 

 milion; rest of head, together with neck, dull oil green, slightly tinged 

 with dull blue on subloral region, beneath red suborbital spot, and on 

 sides of crown, lighter and more yellowish toward throat, which, with 

 chin, are decidedly yellow, sometimes lemon chrome along median 

 line; general color of upper parts bright parrot green; anterior lesser 

 wing-coverts black, the outermost (distal) ones, together with distal 

 middle and greater coverts, alulss, and innermost (proximal) primary 

 coverts dull spectrum red or pure Chinese vermilion, the concealed 

 bases of the feathers yellow; distal primary coverts and secondaries 

 black, the innermost of the latter edged with bluish green; primaries 

 black, their outer webs broadly edged with bluish green; middle pair 

 of rectrices with basal two-thirds (approximately) pure lemon chrome 

 on inner web, bright green-yellow on outer web, the distal third grass 

 green with a large roundish sub terminal spot of black; remaining 

 rectrices with inner webs rich lemon chrome, their outer webs more 

 greenish and rather lighter yellow, the outermost broadly margined 

 terminally with grass green, the others with green and black, the 

 black gradually increasing in extent toward the middle rectrices; 

 under parts (except throat) clear light yellowish green (deep cosse 

 green to yellowish parrot green) ; axillars and proximal under wing- 

 coverts lemon chrome yellow, the outermost (distal) under covects 

 (broadly) vermilion red; under primary coverts and under surface 

 of remiges dull green (chromium), the primaries with a broad stripe 

 of dusky slate next to shaft; bill light yellowish horn color, darker 

 basally; legs and feet dusky; length (skins), 146-154 (150); wing, 

 119.5-122 (120.7); tail, 45-47.5 (46.2); culmen, 16.5-17 (16.7); 

 tarsus (one specimen), 12.5; outer anterior toe (one specimen), 16.5.° 



Adult female. — Similar to the adult male but with red of head some- 

 what lighter, and without any red on distal middle and primary wing- 

 coverts, alulae, or proximal primary coverts, the first green, tinged 

 with blue, the last black tinged with blue on outer webs; distal sec- 

 ondaries with outer webs bluish green (more bluish basally), and red 

 of under wing-coverts much narrower, restricted to margin of wing; 

 length (skin), 151; wing, 115.5; tail, 43.5; culmen, 16; tarsus, 12; 

 outer anterior toe, 15. 6 



a Two specimens. b One specimen. 



