Miscellaneous Genera I
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Cephena sundana sp. n.
, 16-17mm. The forewings are less elongate than in costata but generally very similar in facies. there is some sexual dimorphism, males having the forewing generally more suffused with rufous and brown, with the diffuse, angled, transverse fasciae more evident, and females having a more solid block of brown over the basal two thirds of the costal zone anterior to the longitudinal streak. In this streak, silvering is restricted to a dot approximating to the orbicular, and the streak itself is less clearly defined. In the male genitalia, the valves have the more dorsal angle of the apex distinctly rounded. the spur from the base of the tegumen on each side is smaller. The juxta is deeper, more rectangular, but still with dense spining over its distal part. The spines at the junction of the aedeagus and vesica are smaller than in costata. In the female the genitalia are generally smaller, and the scobinate sternal zone of the eighth segment is a transverse strip rather than a pair of ovate lobes.

Cephena sundana

Holotype . Dutch West BORNEO: 85 miles above Pontianak, (Simons et Meligan (Sanggan)) ex Janson, April, 1909, BM noctuid slide 18603.

Paratypes: 2as holotype; 1 Mt Marapok, N. BORNEO, 99-71; 1 BORNEO: Pontianack (Ledru), 1897; 1 Ulu Temburong Expedition 1978, BRUNEI, Base Camp, 325m, LP 283, M.V. light, 15.x.1978 (T.W. Harman), 1 Bidi, SARAWAK, 1907-1908 (C.J. Brooks).

Geographical range. Borneo, Peninsular Malaysia (recorded under costata by Holloway (1976)), Sumatra.

Habitat preference. This is probably a lowland species; the only specimen with precise data is from dipterocarp forest.

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