Northern Corn Rootworm vs Formosa Long-armed Scarab

Side-by-side species comparison

Attribute Northern Corn Rootworm Formosa Long-armed Scarab
Scientific Name Diabrotica barberi Cheirotonus formosanus
Order Coleoptera Coleoptera
Family Chrysomelidae Euchirinae
Size 4-6 mm 40-60 mm
Habitat Farmland Forests
Diet Root Feeders Sap Feeders
Regions North America Taiwan
Conservation Not Evaluated Endangered

Northern Corn Rootworm

A pale green beetle whose larvae attack corn root systems. It can survive crop rotation by extending egg diapause for two years.

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Did You Know?

Its eggs can remain dormant in soil for over two years, defeating traditional crop rotation strategies.

Formosa Long-armed Scarab

A rare Taiwanese scarab with elongated forelimbs and a dark chestnut-brown body. It is found only in old-growth mountain forests on the island.

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Did You Know?

Illegal collecting for the pet trade has made this one of the most threatened beetles in East Asia.