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So, I took the Herculean task upon me to actually pick up a relevant book (Crosskey 1973).
In all Prosenini, the excavation of syntergite 1&@ reaching the apical margin of that segment. Here, it does not. THere should be 3 pair of apical marginal bristles, here 2 pair. In Prosena, you'd have 1 post IA, here there seem to be 3 but surely 2. So Prosena, it cannot be.
If you follow my guess and suppose Leskiini, it runs pretty nice to Sipholeskia. Only one species from Queensland known: Sipholeskia certima. Originally described in Demoticus, next of kind to Bithia.
It seems this all makes sense.

Theo