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Idaea
semisericea Warren
Ptychopoda semisericea Warren,
1897, Novit. zool., 4: 60.
Ptychopoda comparanda Warren,
1900, Novit. zool., 7: 107, syn. n.
Sterrha comparanda neanica Prout,
S. c. trettesensis Prout 1938, Gross Schmett. Erde, 12:
208,
syn. n.
Idaea
semisericea 
(holotype
of neanica)
(x 1.16) |
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Diagnosis. The wings are rather deep, greyish with darker fasciae (the holotype of neanica
illustrated is rather atypically brown) the oblique medial being well
developed, broader than the postmedial. Confirmation of identity from genitalic
features is recommended.
Taxonomic notes. The male genitalia of the taxa brought into synonymy all have rather
paddle-like valves with small, digitate processes at the centre of the ventral
or costal margins, or both. The aedeagus vesica has a bundle of moderate cornuti, though these vary in size in the various subspecies, being reduced in
ssp. comparanda and large in ssp. trettesensis. The female
genitalia are also similar, with a distal, somewhat lateral patch of spines. The
grey-banded facies is also relatively constant. The male lacks a pouch or
rugosity on the second sternite. The specimen labelled as that illustrated for
the original description of neanica (not the holotype but from the same
locality, with the same date) proved on dissection to be a male of Scopula
actuaria.
Geographical range. Sri Lanka; N.E. Himalaya; Borneo (ssp. neanica); Java
(ssp. trettesensis); Philippines.
Habitat preference. The holotype male of neanica was taken at
Tenom in the lowlands of Sabah. A female has been taken more recently in lowland
dipterocarp forest at Ulu Dusun, also in Sabah near Sandakan, another in a
lowland Paraserianthes falcataria plantation near Brumas and two in a
cocoa plantation at Tuaran.
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