72 BANGS — TWO SAN MIGUEL BIRDS ENE 
ol. III 
Characters.— Size of F. intermedia Cab., with rather stouter bill. Color 
of back much darker; top of head dark grayish brown, contrasting with color 
of back; the black band down centre of belly wider, leaving space occupied 
by the long plume-like white feathers of the sides narrower. 
Color.— Adult male (female unknown): pileum mouse gray, the centres of 
the feathers darker — showing as indistinct lines; a broad white superciliary 
stripe; back and rump dark broccoli brown; wings black, conspicuously 
marked with white at ends of lesser, middle and greater coverts, the ends of 
primaries, secondaries and tertials gradually becoming brownish; tail black, 
the feathers tipped with white, shorter ones much so, longer ones less; throat, 
chest, sides of head and middle of belly, to and including under tail coverts, 
black; a narrow area along sides occupied by long, silky, plume-like, white 
feathers; feet and bill black. 
MEASUREMENTS (in millimeters). 
Sex Exposed 
No. and age Wing Tail Tarsus culmen 
4940 (type) & ad. 54- 48. 22. 14.8 
4939(topotype) J ad. 56. 48. 20. 14.4 
Remarks. —'The type locality of true /ormicivora intermedia 
Cab. is Colombia, Cabanis saying his museum had specimens 
from Cartagena and also from the Valley of Aragua in Venezuela.! 
All specimens from northern Colombia — Santa Marta to the Bo- 
gota region —are similar. They are small (wing of adult male 
about 55 mm.) and pale above; the color of the back is drab, and 
the head is not darker and not grayish. 
The bird of Tobago has lately been separated as / tobagoensis 
Delmas (Mém. Soc. Zool. France, XIII, p. 141, 1900). Itisa 
large, dark-colored form (wing in adult male about 60 mm.). 
Specimens from the coast of Venezuela— Margarita Island and 
La Guayra — approach it in color, but are smaller, and seem to 
be intermediate between it and true / intermedia. 
I cannot find any record for the bird from the continent as far 
north as Panama, and it was therefore a surprise to find a form on 
San Miguel Island. ‘This island form is easily distinguished from 
true /. intermedia by its stouter bill, its grayish head and dark 
coloration, and from / tobagoensis— which it more nearly re- 
sembles in color — by much smaller size. 
1 Wiegm. Arch., 1847, pt. 1, p. 225 and following. 
