The genus Arrenga is represented within our limits by one species, an inhabitant of Ceylon. The history of the genus is very incomplete owing to its rarity, but there can be little doubt that its position is in this subfamily.
In general appearance Arrenga resembles Myiophoneus, but the two genera differ in the shape of the wing. In Arrenga the bill is stout, half as long as the head, and well bent down at the tip; the rictal bristles are long and the nostrils rounded. The wing is very rounded and blunt, the tarsus long and thick, and the tail short and nearly square.