species: quadriplaga Moore, India.
type species and fuscivena Hampson
were two of the three originally included in the genus by Hampson (1900), but in
different sections, differing in that fuscivena
has bipectinate (rather than ciliate) male antennae and five veins in the
radial sector branching system, rather than four, but with R2 more basal in the
system (Fig 1h). The male genitalia indicate they are probably not congeneric.
The type species has a robust, broadly based uncus, a strongly hooked saccular
process to the valve, an oblong saccus and an aedeagus vesica with two spiny
cornuti. M fuscivena has a small,
digitate uncus, a straight saccular process, an acute, triangular saccus, and an
aedeagus vesica with a single very large cornutus. The female of quadriplaga
has the combined ductus and bursa elongate, narrow, flimsy, and slightly
expanded at each end. In a strict sense, probably only the new species below and
arizana Wileman (Taiwan) can be included with the type species as
a natural grouping for Mithuna.
Fig 1h: Mithuna
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