Elateroidea

thumb|Larva of Firefly|Lampyridae: [[Ototretinae]] thumb|Malthodes marginatus ([[Cantharidae)]] thumb|Taphes brevicollis ([[Lycidae)]]

Eucnemidae, or false click beetles, are a family of elateroid beetles based on the type genus Eucnemis; they include about 1700 species, distributed worldwide.

Throscidae is a family of elateroid beetles found worldwide (except New Zealand) with around 150 species in 5 extant genera. The larvae are soil-dwelling, siphoning fluid from mycorrhizae attached to trees. The adults are short-lived, with the adult males being noted for a complex mating dance. Like some other elateroids, they are capable of clicking.

The Cerophytidae are a family of beetles belonging to Elateroidea. Larvae are associated with rotting wood, on which they are presumed to feed. The family contains over 20 species in five genera, primarily distributed in the New World, but also in Eurasia and Africa. 17 fossil species in 7 genera are known extending to the Early Jurassic. Like some other elateroids, the adults are capable of clicking.

Artematopodidae is a family of soft-bodied plant beetles in the superfamily Elateroidea. They are mostly found in understory forest foliage. The life history of the group is obscure, larvae of the genera Eurypogon and Macropogon likely feed on moss, while the larvae of Artematopus have been fed insect remains. The oldest fossils of the family date to the Middle Jurassic.

Omethidae is a family of Elateroidea sometimes known as the false soldier beetles. They are native to South, Southeast and Eastern Asia and the Americas. Their biology is obscure and their larvae are unknown. They appear to inhabit vegetation in or surrounding forests, and are probably active during the day.

The Rhagophthalmidae are a family of beetles within the superfamily Elateroidea. Members of this beetle family have bioluminescent organs on the larvae, and sometimes adults, and are closely related to the Phengodidae (American glowworm beetles), though historically they have been often treated as a subfamily of Lampyridae, or as related to that family. Some recent evidence suggested that they were the sister group to the Phengodidae, and somewhat distantly related to Lampyridae, whose sister taxon was Cantharidae, but more reliable genome-based phylogenetics placed (Rhagophthalmidae + Phengod

The Brachypsectridae are a family of beetles commonly known as the Texas beetles. There are only two extant genera, Brachypsectra and Asiopsectra. Brachypsectra has a cosmopolitan distribution, mostly in arid regions, while Asiopsectra is found in Central Asia and the Middle East.

Trixagus is a genus of small false click beetles in the family Throscidae. There are more than 30 described species in Trixagus. thumb|Trixagus dermestoides

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Rhagophthalmus is the type genus of the Rhagophthalmidae: a family of Asian glow-worm beetles erected by Victor Motschulsky in 1854. Species have been recorded from India, China, Taiwan, Japan and Indochina.

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Telegeusis is a genus of beetles in the family Omethidae, formerly considered to belong in a separate family "Telegeusidae".

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Sinopyrophorus is a genus of bioluminescent hard-bodied clicking beetles in the superfamily Elateroidea, and is the sole member of the recently recognized family Sinopyrophoridae. The genus currently contains a single species, Sinopyrophorus schimmeli, which was described in 2019 from the subtropical evergreen broadleaf forests of western Yunnan, China.

Troglomethes is a genus of false soldier beetles in the family Omethidae. There are at least two described species in Troglomethes.

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Aulonothroscus is a genus of small false click beetles in the family Throscidae. There are more than 20 described species in Aulonothroscus.

Symphyomethes is a genus of false soldier beetles in the family Omethidae, containing two described species.

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Ginglymocladus is a genus of false soldier beetles in the family Omethidae. There are at least two described species in Ginglymocladus.

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