Mud Dauber Wasp vs Large-legged Chalcid

Side-by-side species comparison

Attribute Mud Dauber Wasp Large-legged Chalcid
Scientific Name Sceliphron caementarium Chalcis myrifex
Order Hymenoptera Hymenoptera
Family Sphecidae Chalcididae
Size 24-28 mm 4-7 mm
Habitat Underground Heathland
Diet Nectar Feeders Parasitoids
Regions North America, introduced to Europe and other continents North America
Conservation Not Evaluated Not Evaluated

Mud Dauber Wasp

A slender black and yellow solitary wasp that builds tubular mud nests on walls and structures. It stocks each cell with paralyzed spiders as food for its developing larvae.

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Did You Know?

A single mud nest cell can contain up to 25 paralyzed spiders stacked inside.

Large-legged Chalcid

A parasitoid wasp with conspicuously thickened hind femora used to brace itself while ovipositing. It attacks the pupae of tachinid flies and various Lepidoptera.

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Did You Know?

Despite looking like it could jump powerfully, those thick hind legs are mainly used for gripping, not leaping.