A new species of the bristletail genus Petrobius Leach, 1809 (Microcoryphia: Machilidae) from Crimea Author Kaplin, V. G. text Far Eastern Entomologist 2021 2021-03-04 426 22 28 http://dx.doi.org/10.25221/fee.426.4 journal article 10.25221/fee.426.4 2713-2196 7165842 9AB3E8C7-67C0-4EEA-935C-E675977E78DF Genus Petrobius Leach, 1809 Type species: Petrobius maritimus (Leach, 1809) . COMPOSITION. The European genus Petrobius consists of eight species: P. maritimus (Leach, 1809) (Britain, Ireland , French, Canary Is.), P. brevistylis Carpenter, 1913 (Northern Europe), P. adriaticus (Verhoeff, 1910) ( Italy , Croatia ); P. ponticus Wygodzinsky, 1959 (North-Western Turkey ); P. artemisiae Mendes, 1980 ( Italy , Malta ); P. crimaeus Kaplin, 1983 (Crimea); P. montanus sp. n. (Crimea) and P. caucasicus Kaplin, 2010 ( Russia , Kras- nodar region), of them P. maritimus and P. brevistylis were introduced to USA and Canada (Verhoeff, 1910; Reilly, 1915; Wygodzinsky, 1959; Wygodzinsky & Schmidt, 1980; Paclt, 1969; Mendes, 1980, 1990, 2013; Kaplin, 1983, 2010). NOTES . The main distinguishing features of the species of the genus Petrobius includes the structure of compound eyes and ocelli, mandibulae, urocoxites VIII and the genital area of male. A key to species of the genus is given below.