Question Mark Cockroach vs Woodlouse Cockroach

Side-by-side species comparison

Attribute Question Mark Cockroach Woodlouse Cockroach
Scientific Name Therea olegrandjeani Prosoplecta semperi
Order Blattodea Blattodea
Family Corydiidae Ectobiidae
Size 25-30mm 5-8mm
Habitat Deserts & Drylands Forests
Diet Omnivores Predators
Regions Asia Asia
Conservation Least Concern Least Concern

Question Mark Cockroach

A close relative of the domino cockroach with white markings that form a question-mark-like pattern on its black body. It is a desert species that burrows in sandy soil as a nymph.

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Did You Know?

The white markings on its back form a pattern resembling a question mark, making it instantly recognizable.

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.