elongata Prout, 1929, Bull. Hill Mus. Witley,
elongata fuscipuncta Prout, 1929, Bull. Hill Mus. Witley,
elongata nauarchia Prout, 1929, Bull. Hill Mus. Witley,
acutangula Roepke, 1932, Mém. Mus. r. Hist. nat. Belg. IV,
6 (hors série): 91. syn. n.
This species and the next are the smallest Bornean members of the genus, but elongata
a generally greyer brown with the forewings slightly narrower.
note. Galsworthy (1997) recognised that two species were involved in
old concepts of E. subcinerea Snellen. This species was included as a
good species and as a synonym of inangulata Guenée
by Poole (1989), and with the latter status by Nielsen et
(1996). It was kept distinct, with elongata and acutangula as
synonyms, in the curatorial arrangement in BMNH as noted by Galsworthy (1997).
Galsworthy found clear differences in the male genitalia of type material of subcinerea
Sulawesi, which also occurred in the two species he was investigating in Hong
Kong. Externally, acutangula has
the hindwing margin more angled at CuA2. In the genitalia, subcinerea shows
more asymmetry in valve shape, and has three small diverticula on the basal part
of the aedeagus vesica rather than one digitate one. Examination here of the
genitalia of elongata and its subspecies shows them to be of the acutangula
rather than as in subcinerea, therefore this name must take priority over acutangula.
Oriental specimens to as far east as Sundaland tend to have a larger spined
subbasal lobe to the long diverticulum of the vesica. The next species also has
a very similar aedeagus vesica to elongata. No specimen referable to subcinerea
yet been located from localities between Sulawesi and Hong Kong.
range. Indo-Australian tropics to New Guinea, Queensland.
preference. All records have been from lowland forest, including heath and
alluvial forest, the highest being from 900m and most from below 200m.
as a host plant for subcinerea, an unpublished IIE record provided by the author.
The provenance of the record was Peninsular Malaysia, hence it is likely to
apply to elongata.
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