Mud Dauber Wasp
Sceliphron spp.
Mud dauber wasps are slender, solitary wasps that build distinctive mud tube nests on walls, ceilings, and sheltered surfaces. Generally non-aggressive, they rarely sting humans. However, their nests can be unsightly and may block drainage, vents, and utility access points.
Risk Level
Medium
Active Period
Year-round, active during daylight
Common Locations
Walls, Ceilings
Size
15–25mm
How to Identify Mud Dauber Wasp
Physical Appearance
Slender, elongated wasp with a very narrow thread-like waist (petiole). Black or dark metallic blue, sometimes with yellow markings. Long legs. Distinctive slow, hovering flight when carrying mud.
Size
15–25mm
Common Locations
Walls, Ceilings, Air-con units, Storage rooms
Habitat & Behaviour
Activity & Breeding
Solitary nester — each female builds her own mud nest. Constructs cylindrical tubes from mud, dividing them into cells. Each cell is provisioned with paralysed spiders for larvae to feed on. Does not defend the nest aggressively.
Active Period
Year-round, active during daylight
Signs of Mud Dauber Wasp Infestation
Health & Property Risks
Prevention Tips
Frequently Asked Questions
Other Wasp Species
Need Help With Mud Dauber Wasp?
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