About Tachopteryx thoreyi (Hagen, 1858)
Tachopteryx thoreyi, commonly called the gray petaltail and Thorey's grayback, is a species of dragonfly. It is native to the East Coast of the United States, ranging from New York south to Florida, and west as far as Texas. This species is the only member of the monotypic genus Tachopteryx. Gray petaltails live in highlands, woodlands, and deciduous forests that contain permanent seeps; these habitat areas are often marked by the growth of skunk cabbage and ferns. The gray petaltail is primarily gray and black in color: its thorax is usually entirely gray, while its abdomen is patterned with both gray and black. Adult gray petaltails measure between 7.1 and 8.0 centimeters in total length.
