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Pangrapta
paragona sp. n.
 ,  17-19mm. This species is externally very similar to metagona,
except the forewing postmedial is more clearly doubled, the external dark line
always present and stronger, and more acutely angled. The underside is more
variegated in metagona,
particularly in the paler, yellower zone basal to the postmedials, which are in
a relatively more basal position than in paragona. Within this yellower area of metagona,
the forewing stigmata are more conspicuous. The reduction of the exterior
components of the postmedials is also seen in P. griseistriga Bethune-Baker stat.
rev. (New
Guinea), except this is a greener brown with the fasciae more conspicuously
darker. The underside of griseistriga is more as in paragona.
However, the male genitalia of metagona and griseistriga indicate
a close relationship, the species sharing a slightly falcate valve apex (rounded
in paragona),
a less curved saccular spine to the valve and absence of the long more distal
one of paragona.
The aedeagus of both has more robust reversed spining subapically, though these
spines are diagnostically longer and apically rounded in metagona.
The single cornutus in the vesica of both griseistriga and
metagona
is
longer than in paragona.
The female genitalia of both species have a densely setose eighth segment, but
the seventh sternite of paragona has a quadrate process posteriorly that is not
present in metagona. The latter has a shorter, more sclerotised, less
fluted distal two-thirds of the ductus bursae.
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Pangrapta
paragona
(paratype) |
Holotype . BRUNEI: 300m, Ulu Temburong, rainforest, 9.2.80 (Lt Col. M.G. Allen);
BM noctuid slide 19250.
Paratypes:
1
(slide
19249) Danum Valley, 5°01' N, 116°47' E, 26.ix, 1987, 100m (A.H. Kirk-Spriggs)
roadside, secondary forest; 1 B.N. BORNEO, Kretam, 21.xi.1950-i.1951 (J.D.H.
Hedley);
1
SARAWAK:
Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et al.),
Site 7, January, Long Pala (Base), 50m, 324450, alluvial / secondary forest; 1
SARAWAK
as previous but Site 8, February, Camp 1, Mulu, 150m. 385470, mixed dipt. for.;
1 BRUNEI: 30-60m Labi, lowland forest and secondary veg. 10.9.79 (Lt
Col. M.G. Allen).
Geographical
range. Sundaland, Thailand (VK), N.E. Himalaya, Philippines.
Habitat
preference. The species is infrequent in the lowlands, both in forest and
disturbed areas.
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