Web-spinning Barklouse vs Arrowhead Spiketail

Side-by-side species comparison

Attribute Web-spinning Barklouse Arrowhead Spiketail
Scientific Name Archipsocus nomas Cordulegaster obliqua
Order Psocoptera Odonata
Family Archipsocidae Cordulegastridae
Size 1.5-2.5 mm 70-80 mm
Habitat Forests Forests
Diet Omnivores Omnivores
Regions Southeastern United States, Central America North America
Conservation Least Concern Least Concern

Web-spinning Barklouse

A bark louse known for spinning communal silk webs over tree bark in tropical and subtropical regions. Large colonies can cover entire tree trunks.

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Did You Know?

Their communal silk webs can cover entire tree trunks like a ghostly shroud.

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.