Faculus
Guides
Ellychnia facula
Ellychnia facula is a species of firefly in the family Lampyridae. It is currently treated as a synonym of Photinus faculus in some taxonomic databases, though the original combination under Ellychnia persists in literature. The species was described by John Lawrence LeConte in 1854 and is recorded as widespread across North America. Like other members of the genus Ellychnia, this species belongs to the 'dark firefly' group—adults that lack the light-producing organs typical of most fireflies.