The Saroba group of genera
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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

Tamba walshae

. 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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