Mesosa (Aplocnemia) nebulosa (Fabricius, 1781)
biology

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[Photo © Milan Sláma]

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↑ - An oak (Quercus sp.) branches attacked by Mesosa nebulosa with galleries and exit holes (origin: Czechia).
↓ - A mistletoe (Viscum album) growing on oak attacked by Mesosa nebulosa with galleries and exit holes (origin: Slovakia).

[Photographs are published with the kind permission of Milan Sláma]

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[Photo © Milan Sláma]

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[Photo © Jan Hrbek]

Opened pupal cells in oak branches with overwintering adults of Mesosa nebulosa.