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Thysanoplusia
bipartita Snellen comb. n.
Plusia bipartita Snellen, 1880, Tijdschr. Ent. 23: 71.
Plusia bipartita Snellen; Holloway, 1976: 32.
Diagnosis. This species is like a large, dark T. orichalcea, the green of
the forewing a deeper, bronzy tint and extending basad only to the straight
post-medial but recurring in a small patch posterior to the cell.
Taxonomic notes. The male genitalia are as in intermixta and ekeikei but
the saccus is not splayed apically. The N.E. Himalayan species aeneofusa Swinhoe
bears some resemblance externally to bipartita but is probably not
congeneric, having the ventral setae of the valve blade-like as in Ctenoplusia,
especially on the bulbous sacculus where they are cleaver-shaped; there are
eversible coremata laterally between abdominal segments 7 and 8 that do not
feature in Thysanoplusia. Chou & Lu (1979) placed aeneofusa in
Argyrogramma.
Geographical range. Sulawesi, Borneo; the record from New Guinea in
Holloway (1976) is erroneous.
Habitat preference. This is potentially another strictly montane species,
taken so far in Borneo from 1600m and 2000m in well developed upper montane
forest on G. Kinabalu.
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