Giant Swamp Leaf Beetle vs Granulate Ambrosia Beetle

Side-by-side species comparison

Attribute Giant Swamp Leaf Beetle Granulate Ambrosia Beetle
Scientific Name Donacia provostii Xylosandrus crassiusculus
Order Coleoptera Coleoptera
Family Chrysomelidae Curculionidae
Size 8-11 mm 2-3 mm
Habitat Wetlands Orchards
Diet Herbivores Fungus Feeders
Regions Eastern North America Southeastern United States, spreading northward
Conservation Least Concern Least Concern (invasive)

Giant Swamp Leaf Beetle

One of the larger species of reed beetle, with a metallic golden-green to coppery body and distinctive long antennae. Adults rest on emergent aquatic plants in wetlands.

💡

Did You Know?

Like all Donaciinae, larvae breathe underwater by piercing plant roots and tapping into the air spaces (aerenchyma) inside the plant tissue.

Granulate Ambrosia Beetle

A tiny reddish-brown ambrosia beetle that bores into a wide range of hardwood trees. It cultivates a symbiotic fungus inside its galleries as food for its larvae.

💡

Did You Know?

It is one of the few beetles that practices true agriculture by farming fungus gardens inside tree trunks.