Wide-horned Hissing Cockroach vs Small Australian Tunneler

Side-by-side species comparison

Attribute Wide-horned Hissing Cockroach Small Australian Tunneler
Scientific Name Gromphadorhina oblongonota Onthophagus parvus
Order Blattodea Coleoptera
Family Blaberidae Scarabaeidae
Size 50-70 mm 4-6 mm
Habitat Woodlands Woodlands
Diet Fruit Feeders Dung Feeders
Regions Madagascar Australia
Conservation Not Evaluated Least Concern

Wide-horned Hissing Cockroach

A large Madagascan hissing cockroach with prominent wide pronotal bumps. It is often confused with G. portentosa but has a different horn shape.

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Did You Know?

Each individual produces a unique hiss pattern that other cockroaches can distinguish.

Small Australian Tunneler

A tiny, brown tunneling dung beetle native to Australia. It is one of the few native Australian species adapted to process the dry, pellet-like dung of marsupials. Found in eucalyptus woodland across the continent.

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Did You Know?

Native Australian dung beetles evolved with marsupial pellet dung and were ill-equipped to handle the wet dung of introduced cattle.