Type species: agropoides Walker.
This genus may be allied to Phalga, having a rather similar
structure to the male eighth abdominal sternite (Figs. 20, 21), but with greater
complexity to the central assemblage of spines. The genus is defined by
characters of the male genitalia: the distinctly bilobed valves bearing
prominent rows of setal bases; the unusual processes, possibly socii, arising
from the tegumen. The aedeagus has a subapical row of small, short spines and
the vesica is small but convolute.
The female genitalia have an elongate, finely scobinate, otherwise
unadorned bursa copulatrix. The apophyses of segment 8 are absent or fused to
the basal part of the ductus bursae (see introduction).
All three species are restricted to Sundaland, agropoides Walker
and apicenigra Warren (Peninsular Malaysia, Sumatra) comb. n. being
sister species, sharing a short uncus, enlarged secondary spines to the socii
and an oblique forewing reniform; angulifera Walker completes the trio.
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