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“Meganola” triangulalis Leech
triangulalis Leech, 1888, Proc. zool. Soc. Lond., 1888: 608.


"Meganola" triangulalis

The forewing of this and the next species has a distinctive darker grey triangular mark based on the costa just basal to central; a double (the more basal line finely zig-zag) postmedial runs parallel to the distal side of this triangle. The mae hindwing grades paler towards the dorsum. The two spcies can only reliably be distinguished from the male genitalia. In triangulalis the valves are broader, particularly over the apical half, and the harpe is more robust and in a more distal position.

Taxonomic note. “Meganola” scriptrix van Eecke comb. n. (Sumatra) is a further member of this species group. It has much blacker forewing markings, the antemedial stronger, obtusely angled, and the basal component of the postmedial more strongly and irregularly zig-zag, more distant from the more distal, linear component.

Geographical range. Japan, Taiwan, N.E. Himalaya, Sundaland.

Habitat preference. The species has been taken most frequently in lower montane forest on G. Mulu at 1000m, but may also occur in the lowlands.

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