Ptychoneura-minuta
Guides
Rhopalum clavipes
Rhopalum clavipes is a species of square-headed wasp in the family Crabronidae. It is native to Europe and Northern Asia, and has been introduced to North America where it is now widespread. The species has been documented with a unique phoretic association with the dipteran Ptychoneura minuta, whose eggs are attached to the thorax of adult female wasps.