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Bocula
sejuncta Walker
Leucania
sejuncta Walker,
1856, List
Specimens lepid. Insects Colln Br. Mus., 9: 109.
Caradrina
paucifera Walker,
[1857] 1856, List
Specimens lepid. Insects Colln Br. Mus., 10: 298.
Trichoptya
expansilis Warren,
1912, Novit.
zool.,
19: 53.
Trichoptya
inquinata Warren,
1912, Novit.
zool.,
19: 53.
Trichoptya
magna Warren,
1912, Novit.
zool.,
19: 54.
Trichoptya
nigropunctata Warren,
1912, Novit.
zool.,
19: 54.
Trichoptya
pallida Warren,
1912, Novit.
zool.,
19: 54.
Trichoptya
subspurcata Warren,
1912, Novit.
zool.,
19: 54.
Bocula
celebensis Swinhoe, 1916, Ann. Mag. nat. Hist. (8),
18: 219.
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Bocula
sejuncta 
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Diagnosis.
The
forewings are rather weakly marked, fawn, with an irregular, partially
indistinct submarginal of small black chevrons (see next species also), and
there is some sexual dimorphism, males having a much darker hindwing with a buff
(concolorous with the forewing) hair pencil along the costa.
Taxonomic
note. There is some variation through the range in the structure of
the male abdomen, particularly in the breadth versus length of the eighth
sternite (narrower in Borneo than in India), the shape of its apical flanges
(parallelogram-shaped in Borneo, more rounded in India), and in the more distal
saccular process of the valve (distinctly digitate in Borneo). The aedeagus and
vesica are also variable in width. Material from Queensland (expansilis;
slide 18680) was closer in these features to the Indian male syntype (slide
18682) dissected. The situation merits further study through dissection from
other localities. Related species are B. nigropunctata Warren (Solomons) with ssp. magna
Warren
(Trobriand Is.), and B. limbata Butler
(Christmas I., Indian Ocean).
Geographical
range. Indian Subregion, Borneo, Sumbawa, Sulawesi, New Guinea,
Queensland.
Habitat
preference. Material from recent surveys consists of a male from lowland
alluvial forest at 70m near G. Mulu, and single females from upper montane
forest at 1790m on G. Mulu and from the edge of lowland dipterocarp forest at
100m by the Danum Valley Field Centre in Sabah.
Biology.
Bell (MS) reared the larva in India. It is cylindrical, with reduction of
prolegs on A3 and A4, particularly the former. The colour is a uniform, light
green, slightly yellowed at the segment margins. There is a lateral yellow line
running the length of the larva.
It lives
on the underside of leaves, skeletonising them from the edges, and walks with a
looping motion. Pupation is in a silken cell within an enfolded leaf on the tree
or on the ground. The pupa is slim and lacks a powdery bloom.
The host
plant recorded was Pongamia (Leguminosae).
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