Japanese Giant Mantis vs Cluster Fly

Side-by-side species comparison

Attribute Japanese Giant Mantis Cluster Fly
Scientific Name Tenodera aridifolia Pollenia rudis
Order Mantodea Diptera
Family Mantidae Calliphoridae
Size 75-95 mm 8-10 mm
Habitat Gardens Gardens
Diet Omnivores Parasites
Regions Japan, China, Taiwan Europe, North America
Conservation Least Concern Least Concern

Japanese Giant Mantis

A large brown or green mantis widespread throughout Japan and eastern Asia. It is commonly seen in autumn perching on walls and fences near gardens.

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Did You Know?

It is one of the most commonly depicted insects in Japanese art and culture.

Cluster Fly

A medium-sized, dark gray fly with golden-brown hairs on the thorax. In autumn, it gathers in large clusters inside buildings to hibernate, sometimes in the thousands.

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Did You Know?

The larvae of this fly are earthworm parasites, burrowing into the worm through its skin and consuming it alive from the inside over several weeks.