Saturday, 21 June 2014

Odynerus spinipes

This female Odynerus spinipes wasp was busily provisioning her nest today at Sandy Smith NR. Like most species of solitary wasps this one has a very narrow view of what it considers suitable food for its young, in this case, weevil larvae. The nest cavities are inside the soil behind the vertical face on the left but this genus (Odynerus) builds an elaborate curved chimney over the entrance hole but we aren't sure why as other genera manage perfectly well without one. There must be some advantage to justify the expenditure of time and energy required to make it.

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