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Larvae of Mycetophila fungorum are common in fungi. They have 9 creeping welts consisting of 2 rows of hooks and 3-4 rows of spinules and anterior spiracles with 6 orifices.

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Have you reared these to ascertain they are M. fungorum?

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Yes

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I have written "yes" but wait a little please - I'll check it once more

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I ask for time-out to find the tube where larvae and emerged imagoes are together to be finally sure myself.
Now I can add only that according to the key for Mycetophila larvae by Lastovka, 1970, Mycetophila fungorum is the only species which has 6 orifices on prothoracic spiracles.

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I thought the literature of the larvae might have been 'out-'dated but it was possible you indeed had identified adult material. Chandler (1993) for example (http://sciaroidea...node/21778) described a closely related species, but there may be more (http://www.reposi...ent/150198, http://sciaroidea...node/26324).

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Yes, many thanks. I looked through the literature and discovered many species of fungorum group. I hope I'll find the tube with emerged imagoes to check the determination.

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Mycetophila fungorum. European Russia. Reared from Boletus sp. Imagoes (males) were determined by A.I.Zaitzev and now I looked at them myself and discovered that they have the same morphology of genitalia as on. Figs 1-3 (Chandler, 1993).

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