The Episparis group of genera
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Episparis monochroma Hampson 
Episparis monochroma Hampson, 1926, Descr. Gen. Spec. Noctuinae, p. 520.

Episparis monochroma

. The forewing apex is more produced than in other species, with the marginal and apical angles rather rounded. The ground colour of the wings is a medium to deep violet-grey, with a broad, somewhat darker medial zone that is acutely angled, bounded by an antemedial angled in this way and a postmedial where the angle is more rounded. Females have the rest of the wings uniform except for an angled medial fascia on the hindwing. Males have delicate, angled pale mauve fasciation distal to the medial bands.

Taxonomic note. Pelletier (1982) considered that monochroma was very probably merely a synonym of tortuosalis Moore (Indian Subregion through S.E. Asia to Peninsular Malaysia (Barlow, 1982) and Sumatra (HS / ZSM); Fig 554), showing no obvious differences of facies and female genitalia, an opinion supported here. Males from Borneo would enable this to be confirmed and formalised.

Geographical range. Borneo.

Habitat preference. The only Bornean specimen is the holotype of monochroma, a female from Bau Residency in Sarawak.

Biology. The larva of tortuosalis has been described by Gardner (1941, 1947). The head is granulate, with the more dorsal setae arising from black spots. The body setae are long, bristle-like, most on strong black conical chalazae, but the skin is otherwise smooth. The colour of the larva is unknown, as the description was from preserved material.

The host plant recorded was
Chukrasia (Meliaceae). Mathur (1942) and Robinson et al. (2001) also record Michelia (Magnoliaceae).

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