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Beana terminigera Walker
     Felinia? terminigera Walker, 1858, List Specimens lepid. Insects Colln Br. Mus., 15: 1850.
polychroma Walker, 1862, J. Linn. Soc. (Zool.), 6: 183.
     Beana terminigera Walker; Holloway, 1976: 21.


Beana terminigera

Beana terminigera

See the generic description. The large, rather triangular zone of the basal part of the forewing and the circular apical patch, both whitish in the female but more mutedly pale fawn in the male, are diagnostic.

Geographical range. Indian Subregion, Burma, Peninsular Malaysia, Borneo, Philippines.

Habitat preference.
The species is infrequent. Recent collecting has yielded a male from an area of mangrove in the Bay of Brunei, a male from a cultivated area near the coast at Tuaran in Sabah, and four females from upper montane forest at 1790m on G. Mulu. Chey (1994) recorded several specimens from secondary and plantation forests in the lowlands of Sabah.

Biology. The life history in India was described by Bell (MS). The larva is a semi-looper, with the prolegs of A3 reduced to small cylinders. The body is smooth, slightly tumid over A1 and A2, and also at A8 where there is a small subdorsal tubercle. Primary setae only are present, inconspicuous. The colour is dark green in early instars, becoming more ‘smoky’ in tint in the second instar. More mature larvae are greenish, pinkish brown with indistinct longitudinal lines and bands that are darker dorsally and subdorsally, and lighter in between. There is also grey and white marbling dorsally, particularly over the abdominal segments, and there are dark diagonal bands dorsally to subdorsally over A2-4. Laterally there are further indistinct marbled bands.

The larvae live on the stems and petioles of twigs of the host plant, lying extended, but looping about actively when disturbed, in extreme situations falling to the ground and shamming death, the head curled round to the ventrum of A1. Pupation is in a spindle-shaped cell of leaves lined with silk, the pupa with a shallowly conical apex to the abdomen, lacking a cremaster.

The host plant recorded was Quisqualis (Combretaceae). Gardner (1947) noted the species on Ventilago (Rhamnaceae).

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