Northern Wood Ant vs Arrowhead Spiketail

Side-by-side species comparison

Attribute Northern Wood Ant Arrowhead Spiketail
Scientific Name Formica aquilonia Cordulegaster obliqua
Order Hymenoptera Odonata
Family Formicidae Cordulegastridae
Size 4-8 mm 70-80 mm
Habitat Forests Forests
Diet Sap Feeders Omnivores
Regions Scandinavia, Finland, northern Russia, Scotland North America
Conservation Least Concern Least Concern

Northern Wood Ant

A medium-sized red and black ant that builds large thatch mounds in boreal forests. Colonies can contain hundreds of thousands of workers. The mound orientation and structure help regulate nest temperature in cold climates.

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Did You Know?

The ant mound acts as a solar collector, oriented to catch maximum sunlight, keeping the colony up to 20 degrees warmer than ambient temperature.

Arrowhead Spiketail

A large spiketail dragonfly with arrowhead-shaped yellow markings along its dark abdomen. It is found along seepage-fed streams in eastern North American forests.

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Did You Know?

Females can insert eggs directly into hard-packed stream gravel using their spike-like ovipositor.