SUBFAMILY EUSTROTIINAE

Maliattha muluana sp. n. (Plate 3, Fig 109)

G 11mm. The facies of this species is similar to that of M. flavibasalis Hampson comb. n. and, to a lesser extent, that of M. mesoplaga Hampson comb. n. (Burma) and of M. vialis Moore (see generic synonymy and Kononenko (2000), who revised the vialis species group). The basal pale yellowish brown zone of the forewings is more variegated and less clearly defined, and the grey zone distal to it is also more variegated, though crossed by similarly crenate fasciation. The hindwings are very much paler, almost white over the posterior three‑quarters, except for a faint discal mark and narrow postmedial fascia. The male genitalia differ fromthose of flavibasalis, the valves resembling slightly other Bornea Maliattha in having a costal process and tapering to a squarish apex with a ventral spine and costal rugosity. There is no bilateral asymmetry. In flavibasalis the valve lacks a costal process but has a much broader apical margin invested with a row of about a dozen short, robust setal spines. The aedeagus vesica is spined in muluana but only lightly scobinate in flavibasalis.

Holotype G. SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.), Site 2, January, Camp 4, Mulu, 1790m. 452463 [upper] montane (moss) forest, BM noctuid slide 20634.

Geographical range. Borneo.

Habitat preference. A single specimen has been taken in montane forest at 1790m on G. Mulu.

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