Peratostega
punctapex sp. n. Lomographa indistincta Moore
or close; Holloway, 1976: 83.
Peratostega
punctapex (holotype)
17-19mm. In general appearance this species resembles the Himalayan P.
deletaria and P. indistincta, but is slightly larger and more uniform
in tone, with less definite dark subapical spots or chevrons on the forewing;
the fasciae of all three species are more irregular than in coctata, and
the subapical spots are often enclosed in a diffuse paler patch. In the male
genitalia the valve is longer than in coctata and indistincta and
with a strongly developed ventral portion that has two unequal apical spurs. In deletaria
the valve is longer still, but the ventral portion is more planar; the uncus
is weakly trilobed rather than bilobed. In the female genitalia the bursa is
long, narrow; the signum is also elongate, the flange shallow, bilobed.
Paratypes: 2 as
holotype; 1 as holotype but Power Station, 1930m, BM geometrid
slide 9346; 3SARAWAK:
Gunung Mulu Nat. Park, R.G.S Exped. 1977-8 (J.D. Holloway et al.) Site
15, February, Camp 2.5, G. Mulu, 1000m, 413461, [lower montane forest]; 1
SARAWAK as above but Site 14; 1 SARAWAK as above but Site 25, April, G. Api
900m, 427550, lower montane forest, BM geometrid slide 15663.
Geographical range. Borneo.
Habitat preference. Records during the Mulu survey were from lower
montane forest (1000 on G. Mulu, 900m on G. Api). On Kinabalu, records were from
1620m and 1930m.
17-19mm. In general appearance this species resembles the Himalayan P.
deletaria and P. indistincta, but is slightly larger and more uniform
in tone, with less definite dark subapical spots or chevrons on the forewing;
the fasciae of all three species are more irregular than in coctata, and
the subapical spots are often enclosed in a diffuse paler patch. In the male
genitalia the valve is longer than in coctata and indistincta and
with a strongly developed ventral portion that has two unequal apical spurs. In deletaria
the valve is longer still, but the ventral portion is more planar; the uncus
is weakly trilobed rather than bilobed. In the female genitalia the bursa is
long, narrow; the signum is also elongate, the flange shallow, bilobed.