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Dolbina krikkeni Roesler & Kuppers.
Dolbina krikkeni Roesler & Kuppers, 1975, Ent. Zeitschr., 16: 181.
Dolbina inexacta Walker; Holloway, 1976: 32.
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Dolbina krikkeni
(.65
natural size)
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Diagnosis. The species is smaller, with narrower, more apically produced
forewings than other sphingines, with a prominent pale discal spot, and
few longitudinal or oblique dark markings crossing the regular series of
fasciae. The dark markings on the abdomen are somewhat reticulate.
Taxonomic notes. This species is very close to the Himalayan D. inexacta
Walker, having slightly more produced forewings, less widely spaced prongs
on the gnathus of the male genitalia, and slight differences in the harpe
on the valve. Aedeagus ornamentation is very similar. These
characteristics show variation within Sundaland so the status of this
taxon may have to be modified when more material is available.
Geographical range. Sumatra, Peninsular Malaysia, Borneo.
Habitat preference. The species is montane but rare, taken from 900-2000m
on G. Kinabalu, Bukit Retak in Brunei and G. Api in Sarawak.
Biology. The larva of D. inexacta was described and illustrated by Bell
& Scott (1937). It is bright green with long white or yellow oblique
bands; there is a glaucous suffusion on the dorsum. The pupa is
smerinthine in shape, without a detached tongue-case.
Recorded host-plants (Bell & Scott, 1937) are: Fraxinus, Ligustrum,
Linociera, Olea (Oleaceae).
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