These fungus gnats (true flies in the Family Mycetophilidae) were living on the mushrooms of Agrocybe parasitica; the fungus was infesting a lacebark (Hoheria sp.). The flies are tiny, so I’ve cropped the original photographs heavily; I’ve also rotated them to provide a better view (these individuals were upside down on the membrane that covers the gills of the fungus during the early stages of its development). Identifying mycetophilids is difficult without examining them under a microscope (and being able to interpret arcane literature!), but I have it on good authority that these are probably in the genus Mycetophila.
[27 February 2014, Olympus OM-D EM-1, 60 mm f2.8 Macro , ISO 200, 1/200 at f8 with diffused flash]
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