Wildlife

Insects

Hine’s emerald

Somatochlora hineana

A Hine’s emerald dragonfly with a metallic green thorax, perched
Image: Wikimedia Commons (Public domain)
Insects

What it is

Hine’s emerald (Somatochlora hineana) is a dragonfly of calcareous fens: groundwater-fed wetlands on limestone or dolomite: in the U.S. Midwest. It is federally listed under the Endangered Species Act. The pack has no global IUCN slug; this card does not invent one.

Range

Scattered fen systems in the Midwest, historically including parts of Illinois, Wisconsin, Michigan, Missouri, and nearby states. Larvae need the cool, mineral-rich water of those fens.

What happened

Fens were drained, quarried, or cut off from groundwater. A dragonfly that cannot use a farm pond disappears when the fen goes. Listing and fen protection are the remaining tools. This is not a pond-skimmer of every county wetland.

When / status

Federally listed in the United States. Tied to a rare wetland type.

Human role

Drainage, quarry, and development of calcareous fens: the only habitat the species uses.

Sources

U.S. Fish and Wildlife Service species page (Somatochlora hineana).