Largest Cockroach

Several cockroach species are considered giant. Of these, the most well known are the Madagascar hissing cockroaches and the rhinoceros cockroaches.

Madagascar hissing cockroaches (Gromphadorhina portentosa) are wingless and relatively slow moving. These nocturnal natives of Madagascar thrive on forest floors in rotting logs and feed on decaying organic matter. Hissing cockroaches grow up to over 7 cm in length from horn to antennae and can measure up to 2.5 cm wide. Unlike other species, the female hissing cockroach gives birth to live young. Males are aggressive and use their horns in combat with rival males. The hissing which characterizes this species is used in defense, mating, colony hierarchy and other communication.

Rhinoceros cockroaches(Macropanesthia rhinoceros), also known as giant burrowing cockroaches or litterbugs, are wingless, glossy, dark brown and stout-bodied. These cockroaches weigh more than 30 grams each and can exceed 8 centimeters in length. Native to Queensland, Australia, this species lives in deep burrows within the ground and consumes primarily dead leaves.

Most well-known cockroach pests measure less than 5 cm in length. American cockroaches (Periplanetaamericana) are approximately 4 cm long as adults; German cockroaches (Blattella germanica) measure 1.6 cm in length as adults. Asian cockroach adults (Blattellaasahinai) grow up to 1.6 cm in length, while Oriental cockroach adult females can be longer than 2.5 cm. Brown-banded cockroaches only grow to reach 1.3 cm in length, and smoky brown cockroaches grow up to 3.8 cm as adults.

Scientific Word for Cockroach

Cockroach Food

Cockroach Predators

Cockroach Activity

Cockroach Myths

Cockroach Anatomy

Resources

Protect Your Home from Cockroaches

Madagascar Hissing Cockroaches

American Cockroaches

Cuban Cockroaches

Florida Woods Cockroaches

Pacific Beetle Cockroaches

Green Cockroaches

Pale-bordered Field Cockroaches

Smokybrown Cockroaches

Brown Banded Cockroaches

Sand Cockroaches

Connect with Us

Our customer care team is available for you 24 hours a day.

877-819-5061

Find a Branch

Our local technicians are the pest experts in your area.

Get a Personalized Quote

We will help you find the right treatment plan for your home.

Home is where the bugs aren't™

SERVICES

Pest ControlTermite ControlPrevent and Protect

PEST LIBRARY

Browse All Pests

© 2021 Orkin LLC

Terms of UsePrivacyAccessibility StatementCareers