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Prometopus Guenee

Type species: inassueta Guenee, Australia.

Members of this genus have a rather striate forewing facies traversed only weakly by antemedial and postmedial fasciae, but with a strong, white or paler reniform stigma (this is set obliquely in both Sundanian taxa). In Oriental taxa the anterior half of the forewing is greenish, the posterior half brown or grey.

These Oriental taxa are undoubtedly congeneric with the Australian type species as they share distinctive features of the male genitalia: absence of all processes from the valve except for a groove that runs about three quarters of its length from the base, curved roughly parallel to the ventral margin; the zone distal to this groove is invested with numerous fine, hairlike setae. The trifine basal hair pencils are present though somewhat small. The aedeagus vesica is short with three widely separated, large cornuti (inassueta) or more elongate with clusters or rows of needle-like cornuti (Sundanian taxa). The male basal sternite is relatively deeply cleft between the apodemes.

Sugi (1987) illustrated the larva of the Japanese P. flavicollis Leech. It is green with dorsal and dorsolateral thin longitudinal white stripes and a darker spiracular stripe. There is a pair of dark protuberances on A8. The larva is a conifer feeder.

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