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Stictoptera macromma Snellen  
Stictoptera macromma
Snellen, 1880, Tijdschr. Ent. 23: 87, three syntypes of which the
    ‘Celebes, Takalar’ is hereby designated LECTOTYPE.
Stictoptera striata Hampson, 1894, Fauna British India, Moths 2: 402, syn. n.
Stictoptera atrifera Hampson, 1912, Cat. Lepid. Phal. Br. Mus. 11: 167, syn. n.
Stictoptera ochrota Hampson, 1912, Cat. Lepid. Phal. Br. Mus. 11: 160, syn. n.
Stictoptera polysticta Prout, 1924, Bull. Hill Mus., Witley 1: 427, syn. n.

Stictoptera macromma

Stictoptera macromma (1)

Stictoptera macromma

Stictoptera macromma

Stictoptera macromma(2)

Stictoptera macromma
(Peninsular Malaysia)

This is a large species with generally dark brown forewings. It resembles the previous four species in having an arcuate form, though this is rare. It also has a series of forms with basal pale or dark brown zones that extend to the medial or further distad akin to those seen in cucullioides and signifera. Illustrated above is a (no. 2) plain brown form (no. 1) similar to the lectotype and a form with longitudinally striate forewing patterning that is reminiscent of forms of some Aegilia species. On above four other forms are illustrated. The diagnostic feature is in the fine medial line which, when not obscured by longitudinal markings, is strongly curved, meeting the dorsum nearer to the thorax than it meets the costa. The male genitalia are much as in the ferrifera group except the aedeagus vesica has no distal cornuti, the terminal lobe of the saccus is less angularly isolated from the lateral parts, and the uncus broadens out slightly at the base.

Geographical range. Throughout the Indo-Australian tropics east to New Guinea; S. vitiensis Hampson from Fiji and Vanuatu is very similar externally and may prove to be merely a race of macromma.

Habitat preference. The species has only been taken rarely in recent surveys, from a range of habitats: lowland dipterocarp forest at Ulu Temburong, Brunei, and coastal forest at Seria, upper montane forest at 1600m on Bukit Retak, Brunei, and four specimens from 1200-1500m in upper montane forest on the limestone G. Api, G. Mulu National Park.

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