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Tamba
walshae sp. n.
 16-17mm,  14-15mm. The facies of this species is generally similar to that
of the previous three, but it is slightly larger and with narrower forewings.
The postmedials are more irregular, crenulate, and the submarginals are similar.
The forewing reniform is large but not distinctly paler than the ground and the
antemedial is triarcuate rather than evenly curved. The hindwing has a
bipunctate discal mark in dark brown but lacks a subbasal patch in this shade.
The dark brown marginal dots are displaced slightly inwards and are not
integrated with the dark dashes on the actual margin as in the previous three
species (though bartelsi is somewhat intermediate in this respect). The
paratype from Brunei has the forewing medial area shaded darker brown. The male
genitalia have strong lateral angles from the tegumen, and the valve processes
are relatively distal and small.
Tamba
walshae
(holotype)
Tamba
walshae
(paratype) |
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Holotype . S.E. BORNEO: Samarinda, x.1938 (M.E. Walsh), BM noctuid slide 18578.
Paratypes:
1
INDONESIA:
Borneo, Kalimantan Tengah, Barito Ulu 2001, at Busang / Rekut River Junction, 0°38'
S, 113°59'
E, viii.2001 (G.
Martin); 1 Ulu Temburong Expedition 1978, BRUNEI, Base Camp, 300m, 9.i.1978
(T.W.
Harman); 1 SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway
et al.),
Site 8, February, Camp 1, Mulu, 150m. 385470, mixed dipt. for.; 1
BORNEO:
Sabah, Danum Valley, 5°01' N, 117° 47' E, 30.x.1987, 100m, (A.H.
Kirk-Spriggs), primary forest edge.
Geographical
range. Borneo.
Habitat
preference. All material is from lowland forest, except for the holotype,
which lacks precise data.
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