SUBFAMILY RISOBINAE
View Image Gallery of Subfamily Risobinae

Risoba avola Bethune-Baker
Risoba avola Bethune-Baker, 1906, Novit. zool., 13: 234.
Risoba avola
magna Prout, 1922, Bull. Hill Mus. Witley, 1: 214.
Risoba ochracea Prout, 1922, Bull. Hill Mus. Witley, 1: 214.
Risoba avola Bethune-Baker; Holloway, 1976: 22.

 


Risoba avola


Diagnosis.
This and the next species have similar greenish brown and white forewings and dull, brown-bordered, pale yellow hindwings. There is some sexual dimorphism in the forewing, males having a more distinct, oblique, very pale yellow postmedial band, the female being somewhat more variegated in this area. This dimorphism is less extreme in avola, particularly ssp. magna, and both sexes are much more extensively and irregularly variegated than in vialis. The male genitalia are very similar, vialis tending to have more than one small triangular spine at the centre of the aedeagus as distinct from one or none in avola.

Geographical range. New Guinea; S. Moluccas, Luzon, Borneo (ssp. magna Prout).

Habitat preference. All records are from G. Kinabalu at 1690m (7) and 2600m (2).

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