Gray Petaltail

Tachopteryx thoreyi · Order: Odonata · Family: Petaluridae

Also called: Grey Petaltail, Thorey's Grayback

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Gray Petaltail
Photo: Eric Haley, CC BY

The adult gray petaltail measures about 7 to 8 centimeters long. It is mostly gray with black markings; the thorax is solid gray and the abdomen shows gray and black patterning. It lives in highland woodlands and deciduous forests that have permanent seeps, often where skunk cabbage and ferns grow.

Source: Wikipedia

Where it lives

It inhabits highlands, woodlands, and deciduous forests that contain permanent seeps, often indicated by skunk cabbage and ferns.

Source: Wikipedia

Where it comes from

Its range covers the U.S. East Coast from New York to Florida and extends westward to Texas.

Source: Wikipedia

Lookalikes

It is the sole species in the monotypic genus Tachopteryx, so there are no close look-alikes.

Source: Wikipedia

Where it is found in the US

Recorded in 24 of 51 states and DC. Most records: Ohio, Virginia, North Carolina, Tennessee, Texas, Maryland, Georgia, Florida.

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

Source: GBIF

Status: native in North America; native in United States. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Same family (Petaluridae)

Sources

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

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

Text written 2026-10-23 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.