ease | BANGS — COSTA RICAN BIRDS al 
constantly much paler — less orange, being chrome-yellow to gamboge, 
whereas in true M. aurantiacus the color of the under parts is saffron or 
cadmium. The under parts in the Chiriqui bird are almost exactly inter- 
mediate in color between those of true M. aurantiacus of Costa Rica and 
M. verticalis of northern South America. The latter bird, however, 
though it belongs to this group, has other good characters — gray instead 
of black forehead and sides of crown — and is probably a distinct species. 
Phlogothraupis sanguinclenta aprica subsp. nov. 
Type, from Carrillo, Costa Rica, co adult, no. 17,445, coll. of E. A. and 
O. Bangs, collected Nov. 11, 1897, by C. F. Underwood. 
Characters.— Similar in color to true P. sanguinolenta of southeastern 
Mexico, Guatemala and Honduras, but much smaller in all dimensions. 
Adult males average: wing, 87.3; tail, 75.1; tarsus, 21.3; exposed cul- 
men, 15.6mm. Adult females average: wing, 82.3; tail, 72.; tarsus, 20.2; 
exposed culmen, 15.7 mm. In true P. sanguinolenta the adult male 
averages, wing, 91., tail, 80.3, tarsus, 21.8, exposed culmen, 16.6 mm.,; 
the adult female averages, wing, 88.2, tail, 79.9, tarsus, 21.4, exposed cul- 
men, 16.6 mm. 
Measurements. I append the following lists of measurements, of all 
specimens in the U. 8. National Museum (kindly made for me by J. H. 
Riley), all those in the Bureau of Biological Survey collection, U.S. Depart- 
ment of Agriculture (kindly made by E. W. Nelson), and all in my own 
collection (taken by myself), in order to show the range of individual varia- 
tion in each form. All are adults. 
Phlogothraupis sanguinolenta aprica Bangs. 
Exposed 
No. Sex Locality Wing Tail Tarsus culmen 
126,940: & Nicaragua, Escondido R. 88.0 Tih Dileesy 
33,320! o Costa Rica, San Carlos 91.0 7h) 225 16.5 
34,7091 of - ‘«  Angostura 86.0 TAL as PB bys) 
199,876 Hs “Jimenez 89.5 74.0 21.0 16.0 
2 \ “c“ “cc * 
Biase" ee de \s0.0 75.0 20.5 14.5 
arapiqui 
pAb? ef : Carrillo 87.0 76.0 20.5 5) (0 
19,598? of es es s 86.0 76.0 21.0 16.0 
19,599? of ss . ve 84.0 74.0 21.0 V5eo 
19,600? ee = ce 85.0 i220 22.0 16.0 
17,4442 9 es Sf ge 81.0 72.0 20.0 15eo 
34,710! 92 es “«  Angostura 83.5 72.0 20.5 16.0 
1Coll. U. S. National Museum, 
2Coll. of E. A. and O. Bangs. 
