Pale-bordered Field Cockroach vs Question Mark Cockroach

Side-by-side species comparison

Attribute Pale-bordered Field Cockroach Question Mark Cockroach
Scientific Name Pseudomops septentrionalis Therea olegrandjeani
Order Blattodea Blattodea
Family Ectobiidae Corydiidae
Size 10-15mm 25-30mm
Habitat Farmland Deserts & Drylands
Diet Herbivores Omnivores
Regions North America Asia
Conservation Least Concern Least Concern

Pale-bordered Field Cockroach

A small outdoor cockroach with a distinctive pale border around its dark pronotum. It is an active daytime flier unlike most cockroaches. It feeds on pollen and decomposing vegetation.

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Did You Know?

Unlike most cockroaches, it is diurnal and can be seen actively flying in sunny fields during the day.

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.