South American Giant Diving Beetle vs American Cockroach

Side-by-side species comparison

Attribute South American Giant Diving Beetle American Cockroach
Scientific Name Megadytes ducalis Periplaneta americana
Order Coleoptera Blattodea
Family Dytiscidae Blattidae
Size 35-45 mm 35-53 mm
Habitat Rivers & Streams Gardens
Diet Omnivores Omnivores
Regions Brazil, Amazon Basin Worldwide
Conservation Least Concern Least Concern

South American Giant Diving Beetle

One of the largest diving beetles in South America with a glossy dark olive body. It inhabits large rivers and lakes of the Amazon basin.

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Did You Know?

It is among the largest dytiscid beetles in the Western Hemisphere.

American Cockroach

Despite its name, native to Africa. One of the largest common cockroaches. Can run at 5.4 km/h — proportionally, one of the fastest land insects. Can survive weeks without its head.

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Did You Know?

A cockroach can live for a week without its head — it breathes through spiracles on its body and only dies because it cannot drink water.