Petrobius Leach, 1809

Kaplin, V. G., 2021, A new species of the bristletail genus Petrobius Leach, 1809 (Microcoryphia: Machilidae) from Crimea, Far Eastern Entomologist 426, pp. 22-28 : 22-23

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.