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This subfamily was proposed by Minet (1994[5]) for a group of genera with a less highly modified male tympanal structure within the Uraniidae (see previous section and Figs 159, 161). The male antennae can be unipectinate, serrate or filiform. The shape and facies of the wings is somewhat as in some Drepanidae or even some of the more delicately built, deep winged quadrifine Noctuidae. The forewings are apically produced or falcate, and the hindwings lack any tails. However, the venation of the former is as in other Uraniidae. The wing pattern is characterised by an oblique, more or less straight forewing postmedial that is concurrent with a much more basal fascia on the hindwing.

The male genitalia are robust, the uncus usually entire, the saccus well developed. When ornamentation occurs on the valve, it tends to arise from the costal margin. The signum of the female tends to be of the double banded type with spines directed away from the common axis.

Only two references to the early stages have been located, in Decetia Walker as described below, and for Pseudhyria rubra Hampson in India (Bell, MS). The host records are from the family Olacaceae, with P. rubra feeding on Cansjera in the related Opiliaceae (Mabberley, 1987; Corner, 1988).

All described genera are from the Oriental tropics, some extending east into the Australasian tropics. Minet (1994[5]) referred to an undescribed Afrotropical representative and also noted the association with Olacaceae. The few captures of Bornean taxa in recent surveys have been predominantly from lowland forest on limestone.

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