Type species: constricta Guenée.
Synonyms: Caecila Walker; Phumana Walker; Piada Walker;
are the largest Oriental euteliines, with elongate, apically produced forewings
and very long antennae (sometimes almost as long as the forewing) that are
weakly bipectinate, the pectinations tapering away towards the apex of the
antenna. The subtornal banding on the hindwing is prominent and the tornal area
is orange in several species.
The male eighth abdominal sternite bears two coremata (doubled in two
species) but is otherwise unadorned. The genitalia have a distinct structure: a
very short uncus; a long, broad saccus; short, triangular valves; massive hooked
processes that appear to arise from the transtillae; a long aedeagus with a
small vesica that is globular, basally scobinate, often with a row of about four
In the female genitalia the bursa is usually uniformly scobinate, though
with an opposing pair of scobinate zones centrally in canescens Walker.
The distal margins of the ovipositor lobes form a complete ring and are invested
with a definite fringe of fine setae as well as the usual random scattering; the
lobes are not fused however. The apophyses of segment 8 are not distinct.
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