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Thank you John, in that subgenus we have:

Procladius flavifrons
Procladius lugens
Procladius rufovittatus

Doing a bit of guess work, I would think 'flavifrons' has a yellowish frons and 'rufovittatus' has a reddish band somewhere. That leaves P. lugens! ;) Someone else might be able to say more..

Distribution might also be a clue, although I have flies which have no or few records anywhere near me.

http://data.nbn.o...0100004876

The closest is P. rufovittatus but that means nothing as I have a fly with only a record or two on the south and south east coasts.

http://data.nbn.o...0100004878

P. lugens hasn't got a distribution map..

http://data.nbn.o...search.jsp