Invertebrates
Northern Walkingstick
Diapheromera femorata · also called northern walkingsticks
A small, seed-like object lands silently on the forest floor beneath an oak tree, dropped at random from somewhere in the canopy above by a female northern walkingstick who never gave it a second thought after letting go.
Overview
The northern walkingstick, Diapheromera femorata, is the most widespread stick insect in North America, native to deciduous forest habitat across the eastern and central part of the continent. Its convincing twig-like camouflage, seed-disguised eggs scattered at random, and ability to regrow a lost leg make it one of the more quietly remarkable and easily overlooked insects in eastern forests.
Camouflage that starts before hatching
Long before a young northern walkingstick ever needs to blend into a branch, its own egg has already been disguised as something else entirely, a seed-like decoy scattered randomly across the forest floor with no further care required.
Status
Least Concern — widespread and abundant across suitable deciduous forest habitat throughout eastern and central North America.
Northern Walkingstick: common questions
Why does the northern walkingstick just drop its eggs randomly?
A female simply releases her eggs one at a time from the treetops onto the forest floor below rather than carefully placing them in a specific spot, a strategy that works because each egg is disguised well enough to be mistaken for an ordinary plant seed, offering protection through camouflage rather than careful placement.
Can a northern walkingstick fly?
No, this species is completely wingless, relying entirely on its convincing twig-like camouflage and ability to stay motionless for extended periods to avoid predators, rather than any capacity for flight.
What happens if a predator grabs a northern walkingstick's leg?
This species can shed the grabbed leg entirely and later regrow a replacement over subsequent moults, a defensive trait called autotomy that lets the insect escape at the cost of a limb it can eventually replace.
Why do male northern walkingsticks ride on females' backs?
A male will often stay riding on a female's back for an extended period both before and during mating, a behaviour that may help him guard against rival males attempting to mate with the same female while he waits.