Non-luminous
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.
Ellychnia flavicollis
Ellychnia flavicollis is a species of firefly in the beetle family Lampyridae. It belongs to the genus Ellychnia, a group commonly known as "dark fireflies" that lack the light-producing organs typical of most fireflies. The species was originally described by John Lawrence LeConte in 1868. Based on available records, it occurs in North America. As with many Ellychnia species, detailed biological information remains limited.
Ellychnia irrorata
Ellychnia irrorata is a species of firefly in the family Lampyridae, originally described by Fender in 1970. The species was formerly placed in the genus Photinus as Photinus irroratus but has since been transferred to Ellychnia. Like other members of the genus Ellychnia, this species belongs to the 'dark fireflies'—a group that lacks the light-producing organs characteristic of most fireflies. The species is part of a taxonomically complex group where species boundaries and generic placements have undergone revision.
Ellychnia megista
Ellychnia megista is a species of dark firefly in the family Lampyridae, described by Fender in 1970. Like other members of the genus Ellychnia, this species lacks the light-producing organs characteristic of most fireflies and is active during daylight hours rather than at night. The species is currently accepted in the genus Ellychnia, though it was originally described under Photinus. Dark fireflies in this genus are among the most commonly encountered fireflies in western North America, particularly in the southwestern United States and Rocky Mountain regions.
Pyropyga
dark fireflies
Pyropyga is a genus of fireflies in the family Lampyridae, comprising approximately 13 described species distributed primarily across North America. Adults of both sexes lack bioluminescent organs, distinguishing them from most firefly genera and earning them the common name 'dark fireflies.' The genus is among the most common fireflies in the western United States, particularly on the Front Range of Colorado and in the Southwest, though species occur continent-wide. Pyropyga was established by Motschulsky in 1852.