Hyloterpe illex McGregor, Phil. Jour. Sci. (1907), 2, sec. A, 348.
Camiguin N. (McGregor).
Adult.--Similar to Hyloterpe fallax, but slightly larger; breast
and flanks more strongly suffused with yellow. Male type, length,
183; wing, 93; tail, 75; culmen from base, 17; bill from nostril,
11; tarsus, 21. Female, wing, 86; tail, 67; culmen from base, 16;
bill from nostril, 12; tarsus, 22.
Young.--A young bird taken in June has most of the head and body
covered with vinaceous-cinnamon down, darker on the back; under
tail-coverts pale yellow; wing-feathers and rectrices blackish brown,
edged with olive-green; innermost secondaries and secondary-coverts
washed with vinaceous-cinnamon.