Feds propose protecting Nevada butterfly near geothermal project

By Michael Doyle | 01/07/2025 04:23 PM EST

The Fish and Wildlife Service found that the project itself was unlikely to harm the bleached sandhill skipper, but that combined with other threats, it could further reduce the numbers of the rare insect.

A bleached sandhill skipper near Baltazor Hot Spring in Humboldt County, Nevada.

The Fish and Wildlife Service has proposed endangered species protections for the bleached sandhill skipper, seen near Baltazor Hot Spring in Humboldt County, Nevada. Patrick Donnelly/Center for Biological Diversity

The Fish and Wildlife Service proposed Tuesday adding a rare Nevada butterfly called the bleached sandhill skipper to the federal list of endangered species.

Citing potential threats that include climate change and groundwater pumping, the federal agency agreed with environmentalists in determining the butterfly warrants Endangered Species Act protections.

“The bleached sandhill skipper is a desert occupant, likely living close to its upper thermal limits under normal conditions, leaving little buffer for accommodating warming and drying conditions,” FWS stated, adding that “the climate within [the] bleached sandhill skipper range has been drying and warming over the last several decades.”

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Surveys suggest that the butterfly’s population is now approximately 97 percent smaller than its 2014 level. It is found only in Humboldt County, about 270 miles northeast of Reno.

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