M508 | BANGS — COSTA RICAN BIRDS ol 
constantly much paler —less orange, being chrome-yellow to gamboge, 
whereas in true WM. 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. awrantiacus 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, ¢' 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 77.5 21.5 —— 
33,320! o' Costa Rica, San Carlos 91.0 79.5 2255 16.5 
BaOOD GY “ Angostura 86:0) azo 2125 15.5 
199:;876 Go “ ‘* Jimenez 89.5, 74:0" 21.0) “16.0 
2 “ “ - 
a Roe oe s0.0 75.0 20.5 14.5 
arapiqui 
17,4457 of “Carrillo 87.0 76.0 205 15.0 
19,598? ol oe se cs 86.0 76.0 21.0 16.0 
19,599 of a sf g 84.0 74.0 21.0 15.5 
19,600? s ss : 85.0 72.0 22.0 16.0 
17,4442 9 g s 81.0 i250 20.0 iS ies 
34,710! 9 s *s Angostura 83-0 72.0 20%p 16.0 
1Coll. U. S. National Museum. 
2Coll. of E. A. and O. Bangs. 
