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Hi,

Found this small fly (# 2 mm) yesterday in Center of France, on a bamboo lief
I think it looks as Elachiptera diastema with its large arista ?

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Another view :

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I can't see the characters well as you seen, Is distance between apical bristle of scutellum greater than distance from apical bristle to corresponding lateral one?!

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Hi Sara, I am not sure to be able to appreciate what you need exactly.
I see two apical bristles on scutellum :

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It's Elachiptera but not--I think--E. diastema. None of the North European species in the genus look exactly like this. Something that does not occur here then :)

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Thanks Kahis, Elachiptera is already well for me.
Wen I saw it, I was not quite sure it was Chloropidae !
This one (from Russia but present in France !) inspired me : http://www.dipter...to_id=1316

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If I be right and saw the characters well I think looks like E. cf. rufifrons.

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I thanks you Sara to confirm Elachiptera

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Difficult to decide if it as an Elachiptera or a Lasiochaeta (= Melanochaeta auctorum, nec Bezzi, 1906; see Zootaxa 3267 [year 2012]: 44-54)). All European Elachiptera spp. possess warts or projections at the edge of the scutellum, different from Lasiochata spp. In this species warts seem to be absent. 2 or 3 orbital setulae are longer in both genera, one image seems to confirm this character. The blackish stripes on the mesonotum (= scutum) are artificial shadows produced by the flash light. The photographs do not show Lasiochaeta pubescens (Thalhammer, 1898) with its thickened arista, a species which is immigrating during the last years northwards till Britain and the German part of the North Sea. But possibly it is the unclarified "Elachiptera" rufescens (Walker, 1871), described from Egypt, which may really belong in Lasiochaeta, possibly being a senior synynym of pubescens.

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The only thing I know, this picture had not been flashed