Calymniops convergens sp. n. (Plate 2, Figs 34, 53)
GG, EE 16-18mm. Both this and the next species
are grey rather than the pale brown of trapezata, and have three more or
less straight fasciae to the forewing rather than having the postmedial, and to
some extent the medial, angled where they are crossed by, or converge with, an
arcuate line from the middle of the costa to the distal margin just posterior
to the apex. In convergens the three lines are decreasingly oblique
distad, and therefore they are convergent in the direction of the tornus. Males
have the hindwing area greater than in the female, overlapping extensive scent
hairs over the posterior of the underside of the forewing, which has a zone of
black, glossy scales anterior to this. In the male abdomen, the eighth tergite
has a distinct structure like the ring‑pull on a drink can, and the
sternite is anteriorly very broad, such that the longitudinal bands of
sclerotisation are strongly convergent towards the posterior. The genitalia
have corematous structures subbasally on the exterior of the valve, which is
narrow but rounded apically, and has a prominent interior spur from the
saccular area. The aedeagus vesica in both Bornean species has a subbasal
cluster of spines and two distal zones of finer spines or scobination rather
than a small central area of sclerotisation. In convergens the distal
zones are smaller, more numerous, curved and packed together, and the spines in
the subbasal cluster are more extensive. The female genitalia have the corpus
bursae and appendix bursae about twice as long as those of the type species;
both are coiled.
Holotype G. BRUNEI: 300m, Ulu Temburong, rainforest,
3.6.1979 (Lt. Col. M.G. Allen), BM noctuid
slide 18029.
Paratypes: 1G (damaged) as holotype but different date;
1G BRUNEI: 30‑60m,
Labi, lowland forest, 28.8.79 (Lt. Col. M.G.
Allen); 1G SARAWAK:
Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et
al.), Site 8, February, Camp 1, Mulu, 150m. 385470, mixed dipt. for.; 1G B.N. BORNEO, Kretam, 25.viii.1950 (J.D.H.
Hedley); 4GG, 1E (slide 18616) BORNEO: Sabah, Danum Valley,
5°01' N, 117° 47' E, various dates, 1987, 100‑150m (A.H. Kirk‑Spriggs),
understorey, forest edge and roadside in logged forests; 1E INDONESIA: Borneo, Kalimantan Tengah,
Barito Ulu 2001, at Busang / Rekut River Junction, 0° 03' S, 113°59' E, viii.2001 (G.
Martin); 1G SABAH:
Sandakan, Sepilok Arboretum Canopy Tower, 50m, 26.ix.2006 (Chey, V.K.,
Kashizaki, A., Momin, B., Mathius, A.) (in FRC, Sepilok).
Geographical range. Borneo, Peninsular Malaysia (Barlow
colln), Sumatra (HS
/ K).
Habitat preference. All material is from lowland dipterocarp
forest. The species is more frequent than the next.
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