Beewolf
Beewolves (genus Philanthus), also known as bee-hunters or bee-killer wasps, are solitary, predatory wasps, most of which prey on bees, hence their common name. The adult females dig tunnels in the ground for nesting, while the territorial males mark twigs and other objects with pheromones to claim the territory from competing males.
Beetle-killing wasp
It is an univoltine species. These wasps can be encountered from June through September feeding on nectar and pollen of flowers (especially on Apiaceae species).