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.
Hunting wasp
The hunting wasps have long been known and have attracted the attention of generations of naturalists, but the term "hunting wasp" hardly appeared in literature published before the mid 19th century. Authors more often used the term "solitary wasp".