Erosia certaria Walker, 1861, List Specimens lepid. Insects
Colln Br. Mus., 23: 852.
Diagnosis. This is a small grey species of typical epiplemine shape. The forewing
has a straight transverse fascia medially and a darker shade towards the tornus
(showing broadly and more completely submarginally on the underside). The
hindwing has two dark spots at the margin posterior to each of the tails.
Taxonomic notes. In the forewing, R5 is separate from M1, rather than stalked with it,
and M2 is absent on the hindwing. The female genitalia have rather square
ovipositor lobes. The ductus is long, slender, with a very short colliculum at
the base. The bursa is ovate, scobinate, with a distal signum consisting of a
pair of bilaterally symmetrical rows of overlapping serrate plates that get
progressively larger distally.
Geographical range. Borneo.
Habitat preference. The original specimen was taken by A. R. Wallace in
the lowlands of Sarawak. The only other specimen seen is from the understorey of
regenerating selectively logged lowland forest in the vicinity of the Danum
Valley Field Centre, Sabah.
to Contents page