Caeneressa marcescoides Holloway sp .n.

**

♂♂ 19-21mm. In general facies this species resembles C. marcescens Felder comb. n. (Java, with the related C. ericssoni Rothschild comb. n. in Sumatra) but is large, a darker, almost blackish grey, with a complete row of white patches on each side of the abdomen. In the male genitalia the aedeagus is massive, angled, with a tubular vesica; in marcescens it is slender, gently curved, with a globular vesica. Other features distinguishing the species from marcescens are: a broad, triangular saccus; scobinate lobes laterally at the base of the tegumen; a rhomboidal uncus.

Holotype ♂

BRUNEI: 60m, Ulu Belait, lowland forest, 21.2.1980 (Lt. Col. M. G. Allen) BM arctiid slide 4145.

Paratypes

• 1 ♂ BRUNEI: 75m, Labi, Rampayoh, primary, June 1982 (Lt. Col. M. G. Allen)
• 1 ♂ BRUNEI: 30-60m, Labi, lowland forest and secondary, 6.2.1978 (Lt. Col. M.G. Allen).

Geographical range

Borneo.

Habitat preference

All specimens were taken in lowland, rather swampy forest.

Genitalia: