Giant Jawed Longhorn vs Amami Rabbit Flea

Side-by-side species comparison

Attribute Giant Jawed Longhorn Amami Rabbit Flea
Scientific Name Macrodontia dejeanii Ctenocephalides nakagawai
Order Coleoptera Siphonaptera
Family Cerambycidae Pulicidae
Size 50-85 mm 2-3 mm
Habitat Forests Forests
Diet Wood Feeders Blood Feeders
Regions Brazil, Paraguay, Argentina East Asia, Japan (Amami Islands)
Conservation Least Concern Data Deficient

Giant Jawed Longhorn

A large prionine with impressive curved mandibles from the tropical forests of South America. While smaller than the famous M. cervicornis, it is still a formidable insect. Males use their enlarged mandibles in combat over females.

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Did You Know?

The mandibles of males can account for nearly a third of total body length and are used like antlers in combat.

Amami Rabbit Flea

A flea species associated with the endangered Amami rabbit on Amami-Oshima Island, Japan. Part of the unique fauna of the Amami Islands, which harbor many endemic species.

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Did You Know?

This flea's fate is tied to that of the critically endangered Amami rabbit, one of the world's most primitive living rabbits found only on two small Japanese islands.