Didigua alticola
sp. n. Didigua
seticornis
Walker sensu Holloway, 1976: 23.
Didigua alticola
(paratype)
15-16mm. The forewings are similar to those of heidwigae, rather uniform
and lightly marked, but the species is larger and greyer. There is a paler band
immediately basal to the submarginal dots as in heidwigae, but the dorsum
is not distinctly darkened. The hindwing below has a dark distal lunule and
grades darker grey towards the dorsum, features not seen in either heidwigae
or seticornis. The male genitalia have a slightly less elongated tegumen
than heidwigae. The costal process of the valve is broad, unequally
bifid. The aedeagus vesica is extremely elongate, with a large basal cluster of
cornuti and, at two-thirds, a large claw-like cornutus at the base of the ductus
ejaculatorius. Distal to this the vesica is bent and terminates in a cluster of
four smaller cornuti. The female genitalia have a very elongate ductus bursae
that is slightly corrugated and sclerotised at the very base and over the distal
third as illustrated.
Paratypes:
1
as holotype, 2
(slide 9069) as holotype but Power Station, 1930m; 2
as holotype but Kiau Gap, 1760m; 1
as holotype but Mesilau, 1500m; 1
(slide 10715) SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway
et al.), Site 1, January, Camp 4, Mulu, 1790m. 452463, [upper] montane
(moss) forest.
Geographical range. Borneo.
Habitat preference. The species is uncommon in upper montane forest.
15-16mm. The forewings are similar to those of heidwigae, rather uniform
and lightly marked, but the species is larger and greyer. There is a paler band
immediately basal to the submarginal dots as in heidwigae, but the dorsum
is not distinctly darkened. The hindwing below has a dark distal lunule and
grades darker grey towards the dorsum, features not seen in either heidwigae
or seticornis. The male genitalia have a slightly less elongated tegumen
than heidwigae. The costal process of the valve is broad, unequally
bifid. The aedeagus vesica is extremely elongate, with a large basal cluster of
cornuti and, at two-thirds, a large claw-like cornutus at the base of the ductus
ejaculatorius. Distal to this the vesica is bent and terminates in a cluster of
four smaller cornuti. The female genitalia have a very elongate ductus bursae
that is slightly corrugated and sclerotised at the very base and over the distal
third as illustrated.