It seems that nothing is available :(  Of cource, the data related to a beetle, Harpalus rufipes is a mistake here. 

I inspected some internet data and had made some conclusions about this fly species. 1) It seems to have a too wide distribution area, therefore that may be wrong (e.g.that can be a complex of several similar species). 2) No B. rufipes genetics data is in Internet available. There are exists only some genome-related data about Blaesoxipha plinthopyga : http://forensicentomology.tamu.edu/pdf/Pimsler%20et%20al%202014.pdf

But I would make a note. I'm an orthopterologist, not a dipterologist. I know the Blaesoxipha flies as specialized parasitoids of grasshoppers, bush-crickets and some beetles. However, B. plinthopyga is described here as a necrophagous fly. Therefore I'm not sure that this species (B. plinthopyga) is a true Blaesoxipha.

Some data about another flesh fly species, Fletcherimyia fletcheri is also available. That is also not a true Blaesoxipha but a member of a closely related genus from the same tribe, Protodexiini. It is not an insect parasitoid but a cleptoparasite of insectivorous plants.

http://ir.lib.uwo.ca/cgi/viewcontent.cgi?article=3462&context=etd

http://tomato.biol.trinity.edu/manuscripts/9-6/mer-09-0256.pdf

This paper is the first molecular identification and diversity on this parasitoid.