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The silverfish (Lepisma saccharinum) is a species of small, primitive, [1] wingless insect in the order Zygentoma (formerly Thysanura). Its common name derives from the insect's silvery light grey colour, combined with the fish-like appearance of its movements.
Ctenolepisma longicaudatum, generally known as the gray silverfish, long-tailed silverfish or paper silverfish, is a species of Zygentoma in the family Lepismatidae. It was described by the German entomologist Karl Leopold Escherich in 1905 based on specimens collected in South Africa , [ 1 ] but is found worldwide as synanthrope in human housings.
Zygentoma are an order in the class Insecta, and consist of about 550 known species. [1] The Zygentoma include the so-called silverfish or fishmoths, and the firebrats.A conspicuous feature of the order are the three long caudal filaments.
Lepisma is a genus of primitive insects in the order Zygentoma and the family Lepismatidae. [2]The most familiar member of the genus Lepisma is the silverfish (L. saccharinum), a cosmopolitan species that likes damp habitats, tends to hide in crevices and is usually found in human habitations, becoming household pests under certain conditions. [3]
Thysanura is the now deprecated name of what was, for over a century, recognised as an order in the class Insecta.The two constituent groups within the former order, the Archaeognatha (jumping bristletails) and the Zygentoma (silverfish and firebrats), share several characteristics, such as of having three long caudal filaments, the lateral ones being the cerci, while the one between is a ...
Lepismatidae is a family of primitive wingless insects with about 190 described species. This family contains the two most familiar members of the order Zygentoma: the silverfish (Lepisma saccharinum) and the firebrat (Thermobia domestica).
In most species, neither female nor male fleas are fully mature when they first emerge but must feed on blood before they become capable of reproduction. [3] The first blood meal triggers the maturation of the ovaries in females and the dissolution of the testicular plug in males, and copulation soon follows. [ 9 ]
A degenerative process called follicular atresia reabsorbs vitellogenic oocytes not spawned. This process can also occur, but less frequently, in oocytes in other development stages. [1] Some fish are hermaphrodites, having both testes and ovaries either at different phases in their life cycle or, as in hamlets, have them simultaneously.