The Black and Yellow Mud Dauber is a slender, long-waisted solitary wasp that constructs tubular mud nests on walls, ceilings, and under eaves. The female stocks each cell with paralyzed spiders before sealing it with an egg inside. It is nonaggressive and rarely stings humans, making it a welcome garden resident that keeps spider populations in check.
Best time to see a Black and Yellow Mud Dauber
The best time to see a Black and Yellow Mud Dauber is June–August, when about 67% of U.S. sightings happen, based on 30,053 research-grade iNaturalist observations.
Not certain it is a Black and Yellow Mud Dauber? What bug is this? walks through what to check first and the lookalikes that catch people out.
Recent Black and Yellow Mud Dauber sightings near you
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