Blue mud dauber (likely)

Common around buildings, gardens, wood piles, and dry, sheltered areas across much of western and central North America.

Adults consume nectar and other sugary liquids. Females provision nests with paralyzed spiders for their larvae.

Solitary wasps that often reuse abandoned mud-dauber nests; females carry spiders into nest cells, lay one egg, and seal each cell. They are agile flyers and usually nonaggressive toward people.

The sting is possible but uncommon and generally limited to handling or trapping the wasp. Beneficial predators of spiders and minor pollinators; identification is tentative because the image is partly obscured.