TRIBE STERRHINI
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Idaea marcidaria Walker
   
Hyria? marcidaria Walker, 1861, List Specimens lepid. Insects Colln Br. Mus., 22: 663.
   
Sterrha rufula Swinhoe, 1903, Ann. Mag. nat. Hist. (7), 12: 199, syn. n.
   
Sterrha swinhoei Prout, 1932,  Novit. zool., 37: 248, nom. nov. for rufula, a secondary homonym
        of Eois? rufula Warren, syn. n.


Idaea marcidaria
(x 1.16)


Diagnosis. This is a small, rather yellowish species with darker fasciae. The male has the forewing costa somewhat folded longitudinally. Discal spots are lacking.

Taxonomic notes. The male genitalia of marcidaria and swinhoei are very similar, particularly the aedeagus vesica that contains two moderate cornuti, one of which has its apex slightly flexed. The female genitalia have the two components of the ovipositor lobes widely separated from each other. The ductus is scrolled, the bursa simple, ovate, with asymmetric spining over the basal half. There is no pouch or other structure on the male second sternite.

Geographical range. Sri Lanka, Burma, S. China, Taiwan, Singapore, Borneo.

Habitat preference. The only specimen taken in recent surveys was from dry heath forest at Telisai in the lowlands of Brunei. Older material is from Labuan I. and Pontianak, also lowland localities.

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