A Spider, or a Wasp?

Spiders are horrible, scary creatures. Wasps aren't much better but if I had to choose one, it would definately be a wasp. Some interesting facts about wasps, the digger wasp to be specific, is that 1. they live independently, unlike other wasps that live in colonies. 2. Some of these wasps are one inch long and completely black with iridescent blue wings. And 3. As implied by their names, these wasps live in the ground.