Ectemnius spp.
A genus of solitary wasps with 188 species, found worldwide. Ectemnius species excavate nest tunnels in pieces of dead wood such as stumps, fallen tree trunks, rotting logs and sometimes building timbers or posts with the help of the mandibles. Nesting aggregations can be large and dense, and sometimes more than one female has been recorded using a common nest entrance.
image by Cristina Krippahl










