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Apamea
sodalis tropica ssp.n.
Xylophasia sodalis Butler, 1878, Ann. Mag. nat Hist. (5), 1: 83.
Apamea obliquiorbis Moore, 1882, Descr. new Indian lepid. Insects
Colln.. Atkinson p.109.
Apamea sodalis Butler, Holloway, 1976 : 10.
 
18-20mm. This race has forewings a much darker brown, less striate and contrasty
than typical Himalayan sodalis but shares the feature of a swollen base
to the uncus that bears a fan of fine hairs. The valve lacks the prominent lobe
that extends ventrally from the cucullus neck to overlap the costal process at
the angle; the harpe is less sinuous; the sacculus has the ventral margin less
angular, the cornuti in the aedeagus vesica are smaller with the bases less
extensively sclerotised.
The more extensive series from Luzon (cf. two from Borneo) is used to typify
this taxon.
Holotype
. Haights Place, Panai, subprov. Benguet, LUZON, 7000ft, 1 December 1912 (A.E.
Wileman) BM noctuid slide 14012.
Paratypes.
25 examples
as holotype, various dates, slides 12902(),
12903()
Geographical
range. N.E.
Himalaya to Taiwan and Japan; Luzon, Borneo.
Habitat
preference. The
only two Bornean specimens were taken at 2600m on G. Kinabalu.
Biology.
The larva is
a grass feeder. Miyata (1983) gave Phalaris, Avena, Agropyron and Microstegium
as hosts for the typical race in Japan.
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