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Hello,
On September 3rd I picked up a piece of a mushroom that had lots of Hirtodrosophila trivittata on it. Unfortunately they all disappeared. On September 6th I observed some larvae on the lid of the container with the mushroom residue, which were probably looking for a place to pupate. These then vanished again. On September 15, some adult Hirtodrosophila trivittata appeared in the container.
Can anyone confirm that the larvae shown here could be larvae of Hirtodrosophila trivittata?
Thanks,
Marion

(Germany, Saxony, Pleurotus? mushroom on a dead aspen)