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Camptopsestis Yoshimoto
Type species: malayana Yoshimoto.
The only species is large, robust, similar in appearance to Tethea
oberthueri, but with deeper forewings, the costa more strongly curved, as in
the antemedial fascia. The hindwing is uniform dark grey as are the undersides
of the wings except for a slightly paler border. The antennae are lamellate in
the male.
Yoshimoto (1983) placed the genus provisionally in the tribe
Polydactylini of Werny (1966) with Mimopsestis Matsumura with which it
shares a highly developed tegumen in the male genitalia. The uncus is large, the
socii robust, apically spined. Unique features are a highly reduced vinculum and
saccus, and the presence of a strongly curved, horn-like spine at the base of
the valve costa.
The female genitalia support the association with Mimopsestis, having
paired, sclerotised structures ventrally on the ovipositor lobes. The signum in
the corpus bursae is longitudinally elongate but very weak.
Yoshimoto (1987) gave a more detailed account of Mimopsestis and
a related new genus, Wernya Yoshimoto. The latter has one species in
Peninsular Malaysia and others in N.E. India, Thailand, S. China and Taiwan. Mimopsestis
is monobasic, occurring in Japan and Korea: its larva feeds on Juglans (Juglandaceae)
and is unusual amongst the Thyatirinae in having many secondary setae.
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