Common Pine Sawfly vs Woodlouse Cockroach

Side-by-side species comparison

Attribute Common Pine Sawfly Woodlouse Cockroach
Scientific Name Diprion pini Prosoplecta semperi
Order Hymenoptera Blattodea
Family Diprionidae Ectobiidae
Size 7-10 mm (adult) 5-8mm
Habitat Forests Forests
Diet Wood Feeders Predators
Regions Europe, Asia Asia
Conservation Not Evaluated Least Concern

Common Pine Sawfly

One of the most important pine defoliators in European forestry. Outbreaks cause growth losses and predispose trees to bark beetle attack.

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Did You Know?

Larvae sequester pine resin and can squirt it at predators when threatened.

Woodlouse Cockroach

A tiny rounded cockroach that strongly resembles a ladybird beetle with its domed shape and red-orange coloring with black spots. It is a harmless forest floor species. Its mimicry deters predators.

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Did You Know?

It so closely resembles a ladybird that even entomologists can be fooled until they look at it under magnification.