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OK, I have just looked at the specimen closely and I really can't make it L.thompsoni ... so it has to be L.stabulans.

The face is slightly concave at the base ... the antenna-3 is definitely shorter than 1.9x the longest side of antenna-2 ... m-cu to the bend is much shorter than the bend to the nearest wing marging etc, etc.

Sorry Peter ... no new species yet ;)