Semidonta producta Kiriakoff comb. n.

Kumataia producta Kiriakoff, 1967: 56; 1968: 200.

Diagnosis

This species is identified by forewings with a strongly produced apex and a pattern that is basally dark brown, distally pale brown with darker striations, with a pale patch also in the discal area.

Taxonomic Note

Schintlmeister & Lourens (2010) placed Hyperaeschrella as a synonym of Semidonta Staudinger (type species biloba Oberthür, E. Siberia). Schintlmeister (1994b: 229) placed insulicola and dentata Hampson (but (S & P) not kosemponica Strand) as synonyms of nigribasis Hampson, as he detected no differences in the male genitalia. Facies differences were noted in Part 4, but it appears that there can be great external variability in this, as Schintlmeister also placed the Sumatran hollowayi Bender as a synonym of producta Kiriakoff. The hollowayi form has not yet been recorded for Borneo, but material is limited. However, S & P recorded producta but not the hollowayi form for Thailand, and were unsure whether hollowayi was a form of producta or a separate taxon. Species of this group occur further east in the Philippines (familiaris Schintlmeister (1993), sororcula Schintlmeister & Lourens (2010)) and Sulawesi (occidentalis Schintlmeister (1993)).

Geographical Range

Sumatra, Borneo.

Habitat Preference

The five Bornean specimens seen are all from lowland localities, both Mulu survey specimens being from rain forest on limestone.

Genitalia: