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Mythimna
(Aletia) albomarginata Wileman & South
Cirphis
albomarginata Wileman & South, 1920, Entomologist 53: 122.
Cirphis
albomarginalis Wileman & West, 1928, Ent. Rec, J. Var. 40: 139.
Aletia
albomarginata Wileman & South; Calora 1966: 696.
Diagnosis. This
species is like a rather large, dark, heavily marked version of decississima,
but lacks silvering on the underside, having instead dark discal spots on
both wings, strong postmedials, distal to which is dark shading (though not over
the anterior half of the forewing).
The male genitalia
have the sacculus strongly angled, and the basal part of the harpe extends into
this angle as a large lobe. The aedeagus lacks a lateral lobe and has a distal
group of cornuti as in exsanguis, but a row of shorter spines, variable
in length and thickness, runs from this distal group almost to the base of the
vesica.
Taxonomic notes.
Javan
material has the angle of the sacculus and harpe lobe less strongly developed,
and the row of spines to the distal group on the vesica broader distally and
separated from a basal row of short ones.
Geographical
range. Philippines,
Borneo; Java.
Habitat
preference. Only
two specimens have been taken in Borneo, at Mesilau on the Pinosuk Plateau of G.
Kinabalu (1500m) and in upper montane forest at 1790m on G. Mulu.
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