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Dysaethria
erasaria Christoph comb. n.
Eversmannia erasaria Christoph,
1881, Bull. Soc. imp. Nat. Moscow, 55: 70.
Erosia schidacina Butler, 1881, Trans. ent. Soc. Lond., 1881:
415.
Epiplema pallidistriata Warren,
1899, Novit. zool., 6: 321, syn. n.
Diagnosis. The forewing has a broad fawn-brown zone that extends from the costa
about two thirds across the wing to an oblique boundary that runs from the
centre of the dorsum to a marginal angle at vein M1 (there is another angle at
M3): distal to it there is darkish grey within which part of the strongly looped
postmedial is darkly defined. The antemedial is angled but obscure within the
pale zone, which also has a series of fine longitudinal pale streaks in the
discal area. The hindwing is strongly variegated and marked, the posterior tail
slender, directed somewhat dorsally.
Taxonomic notes. The ornamentation of the valves of the genitalia suggests a relationship
with the moza group. No major differences were noted between the
genitalia of erasaria and pallidistriata.
Geographical range. E. Siberia (Primoriye), Korea, Japan, Taiwan, Hong
Kong, Hainan; Peninsular Malaysia, Sumatra, Borneo (ssp. pallidistriata).
Habitat preference. A single male (in FRC, Sepilok) has been taken on the
road between Kota Belud and Kiau in Sabah. No altitude or habitat data are
given.
Biology. The species was reared in Taiwan, and the larva was illustrated by Chen
(1997). It is whitish with black spots similar to those of the moza group,
the head ochreous orange and the posterior part tinged yellowish. The host-plant
is Viburnum (Caprifoliaceae) as in the moza group.
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