Wingless-insects
Guides
Leucolepisma
Leucolepisma is a monotypic genus of silverfish in the family Lepismatidae, established by Wall in 1954. The genus contains a single described species, Leucolepisma arenarium. Like other members of Zygentoma, these are wingless, primitive insects with elongated bodies and three terminal filaments. The genus is distinguished from related silverfish by specific morphological characteristics, though detailed documentation remains limited.
Machilidae
Jumping Bristletails
Machilidae is a family of wingless insects in the order Archaeognatha, commonly known as jumping bristletails. Adults measure 7–20 mm in body length, with elongated cylindrical bodies covered in overlapping scales and three long terminal filaments. They possess large contiguous compound eyes, a humped thorax, and enlarged hind legs that enable rapid jumping when disturbed. The family contains approximately 250–450 described species with a nearly cosmopolitan distribution, primarily associated with moist, sheltered microhabitats including rocky shorelines, leaf litter, and rock crevices.
Peritroctes
Peritroctes is a genus of small, wingless insects in the family Pachytroctidae, order Psocodea. Members of this genus are classified within the barklice and booklice group, though specific ecological details remain poorly documented. The genus was established by Ribaga in 1911 and is currently recognized as valid. Distribution records indicate presence in Mexico.
Stylifera
Stylifera is a genus of silverfish (order Zygentoma) in the family Lepismatidae, established by Stach in 1932. The genus contains at least two described species: Stylifera gigantea and Stylifera impudica, both described by Escherich in 1905. Silverfish in this family are wingless, primitive insects characterized by their elongated, flattened bodies and three terminal cerci. Members of the genus are rarely encountered in scientific literature, with most biological details remaining undocumented.