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Based on Mihalyi (Fauna Hunagriae) the differentiating character between Melinda and Bellardia should be if the calypters are hairy above or not. Also Mihályi explicitly states that Melinda should have white calypters. These information point towards Bellardia.

THe Bellardia key is very difficult to use. R5 is open which narrows down the choices to

stricta
pusilla
bayeri - no record in Hungary
biseta
agilis
(as in Mihalyi)

(However, later Mihalyi states that this character is not at all stable)

Now the key here is quite difficult to use. The first split is made by the pruinosity of abdomen. In the field this fly really looked shiny. So this would narrow this down to stricta, pusilla and bayeri. THe description of stricta does not really fit. So we are left with pusilla and bayeri, the last one has no record from Hungary.

The pusilla descriotion fits better, but not perfectly. Unfortunately many of the characters listed are highly subjective, for example if the color is greenish blue rather than bluish green etc. It is stated that the bristles on tergite 3 and 4 are obviously long, whihc may be the case here, but what obviously long is difficult to interpret, unless you have a collection available.

pusilla is stated to be one of the common species in Hunagry. (IMHO Melinda, Bellardia are all uncommon at best).


Earlier Theo identified : http://xespok.net/diptera/main.php/v/Calliphoridae/Calliphorinae/Bellardia/Bellardia_pusilla_female_47314.jpg.html
this as pusilla female, but this looks quite different (being distinctively greenish)

So my conclusion is that this could be a male Bellardia pusilla (cf), but this is an ID that is more based on faith than facts.