We had a visit from this species of fly for the first time last year 2018. It is in the garden again 2019.An introduced fly to control green vegetable bug - Pentatomidae - Nezara viridula See article: blog.une.edu.au/thesweepnet/2011/03/28/parasitism-in-gree...Photos: FrediNaturalist 6 Feb 2021: "This is very probably a T. pictipennis. Considering the terminalia drawn in Dugdale, this is the species introduced in the region (even though it was done with a different name). " This is very probably a T. pictipennis. Considering the terminalia drawn in Dugdale, this is the species introduced in the region (even though it was done with a different name). Rodrigo Dios
Conopid fly - Physocephala australianaID Michael Jefferies with thanks. We don't see these very often and I thought these flies were rather cute until I read a bit about them: Most conopids are found around flowers where they mate and lay their eggs directly onto the abdomens of Social insects such as ants, bees and wasps. "The larvae develop first by feeding on haemolymph (insect blood) and in their last instar stage, attack the tissue of the thorax, weakening and then killing the host. Pupation takes place in the abdomen. "More about these flies at eol.org/data_objects/2052008