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“Nola” sijthoffi van Eecke
sijthoffi van Eecke, 1920, Zool. Meded. Leiden, 5: 119.
Nola sijthoffi sumatrana van Eecke, 1926, Zool. Meded. Leiden, 9: 48.


"Nola" sijthoffi

The forewing is rather dirty white with grey tinges, and the hindwing is pale grey. The forewing has a prominent blackish triangle medially on the costa and smaller black marks subbasally and postmedially. A curved, finely punctate postmedial extends posteriorly from the latter. The male antennae are bipectinate.

Taxonomic note. The male genitalia have a strong uncus but no scaphial structures. The valves, though somewhat cleft, are not typically of Nola, the sacculus being ventrally expanded around the harpe and with an unusual tuft of inwardly directed scales distally on it. The male genitalia are the same in both races, the typical race having more heavily marked forewings with the distal margin broadly shaded at the tornus and with irregular markings extending to the dorsum from the medial triangle. However, the Sumatran taxon N.
monticola Roepke has very similar facies and may be conspecific also. In which case two taxa may be involved, sympatric in Sumatra. The male genitalia (but not the facies) of Nola hiranoi Inoue from Japan are somewhat similar in valve shape.

Geographical range. Java; Sumatra, Borneo (ssp. sumatrana).

Habitat preference. Single specimens have been taken in the lower montane forest zone of G. Mulu (1000m) and on the limestone G. Api (900m).

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