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Hi Nkita and Kahis,

Thanks both for your replies nice to see I was at least in the right area, I'm struggling a little with the terminology "apical pd on f3" .. I assume(guessing) pd is posterodorsal (I got that from the Glossary) so Im guessing we are looking for something like hairs somewhere but not sure where? and am I right with my guess that
"no pd seta" is the lack of hairs in the centre part of the thorax?

Thanks again your your assistance, in the meantime I hope you don't mind but I am about to post another similar fly for id assistance.

Regards Chas