Bug Identifier
Black and Yellow Mud Dauber
Community identification

Black and Yellow Mud Dauber

Sceliphron caementarium

Order & Family
Hymenoptera: Sphecidae
Size
24 to 28 mm (approximately 1 inch)
See this bug in the Encyclopedia

Natural Habitat

Found in gardens, meadows, and urban areas near mud and water sources. Often builds nests on protected surfaces of human structures like porches, garage doors, and rafters.

Diet & Feeding

Adults feed on flower nectar. Larvae are carnivorous and feed on spiders that the mother paralyzes and seals into the mud nest cells.

Behavior Patterns

Solitary wasps that construct organ-pipe-shaped nests from mud. They capture and paralyze spiders to stock their nests, ensuring a fresh food supply for their larvae. They are non-aggressive and do not defend their nests.

Risks & Benefits

Benefits the ecosystem by controlling spider populations. They pose very little risk to humans as they are docile and rarely sting unless handled roughly. Unlike social wasps, they do not swarm.