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Dinumma
spiculata sp. n.
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Dinumma
spiculata 
(holotype) |
Dinumma
spiculata
(paratype) |
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, 12-13mm. This is a smaller species than those of the placens
complex,
but the facies of the males and the sparse ciliation of their antennae are
similar. However, there is a more conspicuous pale zone crossed by darker veins
on the male hindwing, and in both sexes the discal spot is not apparent within
the dark medial band of the forewing. The females are paler, and browner, the
dark medial band more conspicuous. They could be confused with paler specimens
of the next species, but the pale fasciae distal to the medial band are more
delicate, with the more ventral distinctly longer, incurved. The aedeagus vesica
has two diverticula that are longer, and each bears at its apex between one and
three spines (always the same number on each in the three males dissected). The
female genitalia have the ductus and bursa relatively small, and the ostium is
underlapped by the slightly bilobed apex of the seventh sternite, though still
asociated with an extension from the eighth segment.
Holotype
. BRUNEI: 3m, Seria, secondary and coastal veg., 16.2.80 (Lt.
Col. M.G. Allen), BM noctuid slide 18993.
Paratypes:
1
(slide
18812) BRUNEI: 15m, Daerah Belait, Badas, swamp forest, 27 Feb. 82 (Lt.
Col. M.G. Allen); 1 (slide 18994) Mt. Marapok, Dent Province, Brit. N. BORNEO; 1
(slide
18992) Bidi, SARAWAK, 1907-1908 (C.J. Brooks);
2
(slide
18810) SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway
et al.),
Site 14, February, Camp 2.5, Mulu, 1000m. 413461, lower montane forest; 1
(slide
18811) SARAWAK as previous but Site 8, February, Camp 1, Mulu, 150m, 385470,
mixed dipt. for.; 1 INDONESIA:
Borneo, Kalimantan Tengah, Barito Ulu 2001 at Busang (slide 18983) Rekut River
Junction, 0°03' S, 113° 59' E, 23.viii.2001 (G.
Martin).
Geographical
range. Borneo.
Habitat
preference. Material is mostly from the lowlands, taken in a variety of
forested and disturbed habitats. Two specimens are from lower montane forest.
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