Keyhole Wasp vs Sweat Bee

Side-by-side species comparison

Attribute Keyhole Wasp Sweat Bee
Scientific Name Pachodynerus nasidens Halictus ligatus
Order Hymenoptera Hymenoptera
Family Vespidae Halictidae
Size 10-15 mm 7-11 mm
Habitat Underground Farmland
Diet Nectar Feeders Nectar Feeders
Regions Americas, introduced to Australia North America
Conservation Least Concern Least Concern

Keyhole Wasp

A mud-nesting wasp notorious for building nests inside aircraft pitot tubes. It has caused aviation incidents by blocking airspeed sensors.

💡

Did You Know?

Brisbane Airport installed covers on aircraft sensors specifically because of this species.

Sweat Bee

A small, dark metallic bee that is attracted to human perspiration for its salt content. It exhibits variable social behavior ranging from solitary to primitively eusocial nesting.

💡

Did You Know?

Sweat bees are among the most important wild pollinators of crops, and some species can switch between solitary and social living depending on environmental conditions.