Black Bender Hoverfly

A beautiful, black hoverfly. Size about 13mm. For whatever reason this individual was sitting on our coffee bush, bending its abdomen as if to lay eggs - which I doubt is what happened. It flew away a few times and moved. What a taxonomic odyssey! Frankly, I am a bit shocked over the state of systematics of taxonomy in this group. There is hardly a genus where the synonymy is worked out properly. It is almost impossible to cross-reference and narrow a search down. I am absolutely sure that there are plenty of junior synonyms that are in need of being addressed. Once more, national and continental research traditions that evolved basically in isolation in a lot of cases, hide and prevent real knowledge creation. Because this species was photographed in Australia, I need to follow what information is available from ALA. While I found some picture matches in similar genera first, ALA does not know or reference them. I ended up going up in the taxonomic tree and trying to find out what relatives Australia lists. The biodiversity data mainly showed two species, both found in Queensland, one even in Brisbane. But since, I am not a taxonomist, this might be a totally different creature altogether. So, please don't reference this identification. The English name is made up based on its bend in the abdomen but might be changed at any time.