U.S. Fish & Wildlife Service

Sacramento Fish & Wildlife OfficeServing the people, conserving the fish, wildlife, and plants of California

A Unit Of The Pacific Southwest Region

News Release

San Joaquin Valley giant flower-loving fly does not warrant Endangered Species Act protection

December 18, 2018

Media Contact:
Veronica Davison, External Affairs, Phone: (916) 491-0374, Email: veronica_davison@fws.gov

SACRAMENTO, Calif. - The U.S. Fish and Wildlife Service is issuing a finding that the San Joaquin Valley giant flower-loving fly is not warranted for listing under the Endangered Species Act. Following a thorough review of scientific information about the species, the Service determined that the fly is not in danger of extinction now or in the foreseeable future.

The San Joaquin Valley giant flower-loving fly is endemic to the San Joaquin Valley (Kern County). Although the species has dropped from eight known populations scattered across the valley to one known population at Sand Ridge -- a large, stable sand dune east of Bakersfield, Calif. – more than half of its habitat is under permanent protection from future development, and there is no evidence that current or future threats will negatively impact the species or its habitat.

The San Joaquin Valley giant flower-loving fly is a large fly in the Mydidae family of the order Diptera (true flies). The larvae burrow in moist sand where they prey on the burrowing larvae of other insects and the roots of native perennial woody shrubs. After one to two years, San Joaquin Valley giant flower-loving fly larvae burrow near the surface and produce pupae that metamorphose into adults that have a lifespan of about three days. It is not considered a pest species and is not known to bite, infest or transmit disease to birds or mammals.

The Federal Register notice and associated documents are available online: http://www.fws.gov/sacramento.

The U.S. Fish and Wildlife Service works with others to conserve, protect, and enhance fish, wildlife, plants, and their habitats for the continuing benefit of the American people. For more information about our work and the people who make it happen, visit www.fws.gov/Sacramento. Connect with us via Facebook, Twitter, YouTube, and Flickr.

Last updated: December 18, 2018