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Earias
Hübner
Type
species: clorana
Linnaeus, Sweden.
Synonyms: Aphusia Walker (type species speiplena Walker =
vittella Fabricius, India); Cinciana Strand (type species nubica
Strand = insulana Boisduval, Africa); Cincianella Strand
(unnecessary replacement name for Cinciana); Digba Walker (type
species uninotata Walker = flavida Felder, Borneo).
The adults
are small, robust, rather glossy, with yellow or green
predominant
in the forewing coloration. The
hindwings are
usually white. The forewing lacks
an areole; the radial sector
branching system
is ((R3, R4) R5). The hindwing
veins around the posterior angle of the cell are reduced to three,
with the anterior two of
these stalked.
The male abdomen lacks tymbal structures, but, in some species (e.g. vittella),
there are coremata laterally between the second and third segments. The eighth
segment lacks apodemes. The genitalia have a short but distinctly bifid uncus.
The valve is broadly bilobed distally, the dorsal lobe bearing an unusual,
ventrally directed spine. There is also a small flap near the centre of the
valve costa.
The female genitalia are characterised by a strongly fluted, elliptical,
scobinate bursa copulatrix set on a long and very narrow ductus bursae. An
appendix bursae may be present.
The larva has unusual chaetotaxy for the family as indicated above, and some of
the setae can be supported on slender and elongated chalazae, giving a spiny
appearance.
The pupa lacks a cremaster but some abdominal segments may have beaded or
toothed margins.
Four species occur in Borneo, three very widespread and one Sundanian.
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