Climate-change-vulnerable
Guides
Pyractomena ecostata
Keel-necked firefly
Pyractomena ecostata, the keel-necked firefly, is an endangered firefly species endemic to the United States with a highly disjunct distribution. It occurs in two widely separated coastal regions: the Mobile Bay area of Alabama east through peninsular Florida, and saltmarshes surrounding Delaware Bay and Cape May in Delaware and New Jersey. This species is restricted to brackish habitats, particularly those receiving saltwater intrusion, and faces severe threats from coastal development, sea level rise, invasive vegetation, and light pollution.