Eustalomyia hilaris

Eustalomyia hilaris

Observation - Eustalomyia hilaris - UK and Ireland. Description: This is smaller than E.festiva, 8mm. These flies were seen investigating the holes used last year by large Crabronid wasps such as Ectemnius as well as smaller and darker species.

This is smaller than E.festiva, 8mm. These flies were seen investigating the holes used last year by large Crabronid wasps such as Ectemnius as well as smaller and darker species.