Giant Walkingstick

Megaphasma denticrus · Order: Phasmida · Family: Diapheromeridae

Damages trees, gardens or crops. It feeds on the foliage of trees and vines and can damage those plants.

Source: Wikipedia

Giant Walkingstick
Photo: Sam Kieschnick, CC BY

The giant walkingstick can grow up to 7 inches long, making it the largest insect in North America.

Source: Wikipedia

How to recognize it

Adults range in color from green to brown, with males usually brighter than females.

Source: Wikipedia

Size

They can reach up to 7 inches in length, the largest insect in North America.

Source: Wikipedia

What it eats

They feed on foliage of grasses, grapevines, oak, elm and mesquite, blending into the woody parts of their habitat.

Source: Wikipedia

Life cycle

Adults live about 50 days, and females often mate with multiple males.

Source: Wikipedia

Where it comes from

Their range includes Texas, Oklahoma, Indiana, Alabama, Kentucky, Wisconsin, New Mexico and Mexico.

Source: Wikipedia

Where it is found in the US

Recorded in 15 of 51 states and DC. Most records: Texas, Arkansas, Louisiana, Oklahoma, Missouri, Mississippi, Tennessee, Illinois.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

How big do giant walkingsticks get?

They can grow up to 7 inches long, the largest insect in North America.

Source: Wikipedia

What colors are giant walkingsticks?

Their bodies range from green to brown, with males usually brighter than females.

Source: Wikipedia

What do giant walkingsticks eat?

They feed on the leaves of grasses, grapevines, oak, elm and mesquite, using camouflage to blend into their woody surroundings.

Source: Wikipedia

Same family (Diapheromeridae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Megaphasma_denticrus

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.