The milliped family Anthroleucosomatidae new to North America: Leschius mcallisteri, n. gen., n. sp. (Diplopoda: Chordeumatida: Anthroleucosomatoidea)

Abstract

Leschius mcallisteri, n. gen., n. sp., is described from near Olympia, Washington, USA, as the first North American representative of the milliped family Anthroleucosomatidae, differing from all other species of the family in its small size, low segment number, and distinctive male ninth legs (posterior gonopods) lacking any trace of a telopodite. The new species is highly disjunct; the core distribution of the anthroleucosomatids is in the Balkans, ranging east to the Caucasus, Iran, and central Siberia.