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Gadirtha
impingens
Walker
Gadirtha impingens Walker, 1857 [1858], List Specimens lepid. Insects
Colln Br. Mus., 13: 1103.
Scolopocneme bufonia Felder & Felder, 1862,
Wien. ent. Monatschr., 6: 38.
Checupa tinctoides Snellen, 1877, Tijdschr.
Ent.,
20: 71.
Gadirtha inexacta ab. papuensis Warren, 1913, Gross-Schmett.
Erde,
3: 292.
Gadirtha inexacta ab. uniformis Warren, 1913, Gross-Schmett.
Erde,
3: 292.
Gadirtha
guineana
Swinhoe, 1918, Ann. Mag. nat. Hist. (9), 2: 70,
syn. n.
Gadirtha inexacta buruensis Prout, 1926, Entomologist,
59: 69.
Gadirtha inexacta
Walker sensu Holloway, 1976: 21.
Diagnosis. See the previous species.
Taxonomic note. The syntypic series of impingens is mixed (see
previous species); the syntype female from Hong Kong is therefore selected as
LECTOTYPE. There is some variation in facies through the range of the species
but not in the male genitalia. The typical race (= bufonia) has a rather
uniform, slightly purplish tone to the forewing facies, grading into a more
variegated form in the N.E. Himalaya (ssp. uniformis). This in turn
grades into the slightly larger form seen from Sundaland to the Moluccas (ssp.
tinctoides = buruensis). The race from New Guinea eastwards (ssp.
papuensis = guineana) is a similar size and has a similar forewing
facies, but the hindwing is more pale bone colour with a broad brown border.
Geographical range. N. India and S. China to Queensland, Bismarcks and
Solomons.
Habitat preference. The species ranges from the lowlands to 2600m, but is
most frequent in the 1000-2000m range.
Biology. A larval host-plant recorded (IIE, unpublished) in Hong Kong was
Sapium (Euphorbiaceae). Mell (1943) recorded Stillingia in the same
family.
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