Blue Horntail vs Giant Twig Ant

Side-by-side species comparison

Attribute Blue Horntail Giant Twig Ant
Scientific Name Sirex juvencus Pseudomyrmex spinicola
Order Hymenoptera Hymenoptera
Family Siricidae Formicidae
Size 12–30 mm 5-10 mm
Habitat Forests Forests
Diet Wood Feeders Nectar Feeders
Regions Europe, North America, Asia Central America, Southern Mexico
Conservation Not Evaluated Least Concern

Blue Horntail

A metallic blue-black horntail wasp found across the Northern Hemisphere. It breeds in recently dead or dying spruce and fir trees.

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Did You Know?

Adults sometimes emerge from milled lumber years later, boring clean round exit holes through flooring or walls.

Giant Twig Ant

One of the largest acacia-ant species, nesting in the massive swollen thorns of Central American bullhorn acacias. Queens can produce enormous colonies with thousands of aggressive workers.

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Did You Know?

They are so effective at protecting acacias that cattle ranchers consider them a serious hazard when clearing land.