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Amata decorata Walker
comb. n.
Syntomis
decorata Walker,
1862, J. Linn. Soc. Lond. (Zool.) 6: 89.
Syntomis
florina Butler,
1876, J. Linn. Soc. Lond. (Zool.) 12: 350.
Syntomis
fata Swinhoe,
1892, Cat. Lep. Heterocera Oxf. Univ. Mus., 1: 48, syn. n.
Ceryx
decorata Walker
and Ceryx fata Swinhoe; Seitz, 1912-1913: 65.
Diagnosis. This species resembles expandens Walker but has narrower borders
to the forewings and a variable degree of yellowish suffusion ot the subapical
patches of the forewing and the basal zone of both wings. Each abdominal segment
is ringed finely with yellow. See also Eressa vespina Rothschild.
The uncus and basal costal processes of the valve are diagnostically darkly
sclerotised.
Taxonomic notes. A Sumatran species is externally similar and has darkly sclerotised
uncus and basal valve processes, but these are relatively more massive, and the
more distal costal processes on the valve are longer (slide 4206). Another
Sumatran specimen (slide 4207) has valves that lack this distal process and are
apically narrower, more angular. The names hageni Snellen and flavibasis
Hampson may be applicable to one or other of these. In all three taxa the
male eighth sternite is modified with strong apodemes. Such apodemes are not
seen in expandens or the next species.
Geographical range. Borneo.
Habitat preference. The species is rare, possibly restricted to the
lowlands and day-flying.
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