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Didigua
seticornis
Walker
Nonagria seticornis Walker, 1862, J. Linn. Soc. (Zool.), 6: 180.
Carea mesocausta
Hampson, 1905, Ann. Mag. nat. Hist. (7), 16: 598,
syn. n.
Didigua seticornis Walker; Kobes, 1997: 146.
Didigua mesocausta Hampson; Kobes, 1997: 155.
Didigua
seticornis 
Didigua seticornis
(mesocausta form)
Didigua
seticornis
(black mesocausta form) |
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Diagnosis and taxonomic note. See the previous species. This is a very
variable species and can have the medial zone of the forewing suffused black or
brown. The holotype of mesocausta has a brown medial zone but the
genitalia are as in typical seticornis. Externally similar material from
Sulawesi (slide 17941) has distinct male genitalia (shorter valves, an elongate,
bifid, spined juxta, and a shorter, more dorsal spine associated with the ductus
ejaculatorius in the aedeagus vesica), and is therefore not considered
conspecific. The female genitalia of seticornis have a distinct
diverticulum to the bursa that presumably accommodates the spine of the male
vesica. Both features are lacking from
purpureoscripta
and lilacina
Hampson which have both been placed as synonyms of seticornis in the past
(e.g. Poole, 1989; Kobes, 1997). The taxon identified as seticornis
by Holloway (1976) is described as new below. The genitalia illustrated by Kobes
(1997) for seticornis also seem to represent a different species.
Geographical range. Sundaland.
Habitat preference. The species is common in the lowlands, extending with
decreasing frequency up to about 1600m.
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