Can you tell us what this insect is? I’m 70 and this is the first one I’ve seen.
Geoff Bowles.

Hi Geoff,
This is a Giant Ichneumon in the genus Megarhyssa, probably Megarhyssa macrurus. The female uses that long ovipositor to deposit an egg deep in dead and dying wood because her larva will parasitize wood boring insects found there.

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