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Hello Gerard,

A quick check on Google gives several pictures of Therevidae with conspicious ngitudinal stripes on the thorax. One is presented as Ozodiceromyia nanella, another is a Spiriverpa species. In all of them, the colours are much duller than in your animal. Maybe you should try some google-ing too; one of the pictures is accompanied by a key as well.

Good luck,

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