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Bob B. | all galleries >> Pictures Some Days (PSDs) >> Pictures Some Days 2008 >> January 2008 > 05 Siricid Wood Wasp 9173
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05 Siricid Wood Wasp 9173

05 Siricid Wood Wasp 9173

I was splitting an oak for fence rails and found this female. She was waiting for spring to emerge from the log. The cast pupal skin is the wrinkled tan thing to the right here. This wasp is in one family - Siricidae - of a larger group of primitive plant-feeding wasps which includes the several sawfly families. They don't sting. The female lays eggs into tree trunks and the larvae feed/burrow in the tree. Might be hard to tell scale here, but she is about an inch and quarter (~35mm) long.

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ralp garrow 14-Jan-2014 21:56
Ihave seen someting simular when splitting. beach wood. i thought they wer termites of some kind are thier certian trees they prefer cus i suspect thier in my rlm now it seems to be dying i haf stacked the beach next to it?
larose forest photos21-Jul-2012 15:07
Fantastic find, photo and commentary! Very nice! V
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