FAMILY SPHINGIDAE
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Gehlenia Bryk

Type species: bruno Bryk (Burma).

Closely allied to Acosmeryx with similar facies and coloration, this genus has the forewings highly falcate at the apex rather than marginally excavate; the postmedial fasciae are broader, straighter, more diffuse, and displaced more strongly at the oblique dark shade.

In the male genitalia (falcata Hayes) the uncus and gnathus are similar to those of Acosmeryx but the harpe is a prominent simple spine. The two flexed back arms of the apical process of the aedeagus are slender, one very much longer than the other.

There are three Oriental species (including obliquifascia Hampson) (Inoue, 1973; D'Abrera, 1986: 132).

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