Dung-loving Rove Beetle vs Blue Mud Dauber

Side-by-side species comparison

Attribute Dung-loving Rove Beetle Blue Mud Dauber
Scientific Name Philonthus marginatus Chalybion californicum
Order Coleoptera Hymenoptera
Family Staphylinidae Sphecidae
Size 8-12 mm 10-23 mm
Habitat Gardens Gardens
Diet Dung Feeders Predators
Regions Europe, North Africa, introduced to Australasia North America
Conservation Least Concern Least Concern

Dung-loving Rove Beetle

A medium-sized, shiny black rove beetle with distinctly margined elytra found commonly in dung and compost. It is one of the most frequently encountered Philonthus species in pastoral landscapes.

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Did You Know?

This beetle has been introduced to New Zealand as a biological control agent against pastoral dung flies.

Blue Mud Dauber

A metallic blue wasp that preys on black widow spiders. It reuses mud nests built by other dauber species rather than constructing its own.

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Did You Know?

It specifically targets black widow spiders to provision its nest.