Phaeothripa cheyi Holloway sp. n.

♂, ♀♀ 12-13mm. The general features are as in the generic account in Part 18 except the forewings have a less regularly curved distal to dorsal margin than in P. morena Swinhoe. The forewings are shades of slightly violet ashy grey as in* P. morena*, but generally rather more mottled and with a sequence of alternating, diffuse, pale and dark bars along the costa that recur more narrowly on the very margin of the otherwise uniform and browner underside. The reniform stigma is circular, a pale ring with a fine dark surround and a dark centre, and the orbicular is a dark dash, oblique, slightly lunulate, with a paler surround. A narrow, irregular, dark medial runs between the two stigmata. The antemedial is similarly irregular, more strongly dentate, dark with a pale edging basad. The postmedial is narrow double, with a pale central part, broken in places, and angling gently around the round reniform stigma. This extensive fasciation is much stronger than in morena. There is an irregular postmedial consisting of a series of black lunules or chevrons, each enclosing a small pale area distad. The hindwing is a uniform medium brownish grey; on the underside there is a faintly darker discal lunule. The male abdomen is typical of the genus, but the saccular plate is much more spatulate, broadening distally, and is surrounded by the bases of the deciduous hair‐setae. The female genitalia are similar to those of morena except the appendix bursae is more corrugated.

Holotype ♂

SABAH: Brumas, P. caribaea, 9.viii.1991, (Chey Vun Khen), BM noctuid slide 20812.

Paratypes

• 1♀ (slide 20152) Dutch West BORNEO: 85 miles above Pontianak, (Simons et Meligan (Sanggan)) ex Janson, April, 1909
• 1♀ (head missing) Mt. Dulit (Hose).

Geographical range

Borneo.

Habitat preference

Data for the two paratypes are imprecise, but the holotype was taken in a softwood (Pinus) plantation at about 300m.

Genitalia: