Levizonus montanus ( Takakuwa, 1941 )

Mikhaljova, Elena V., 2021, Review of the millipede genus Levizonus Attems, 1898, with description of a new species from the Far East of Russia (Diplopoda, Polydesmida, Xystodesmidae), European Journal of Taxonomy 751, pp. 159-184 : 171-172

Levizonus montanus ( Takakuwa, 1941)

Fig. 13

Ezaria montana Takakuwa, 1941: 9 , fig. 10 (syntypes destroyed; type locality: Hokkaido, Japan).

Japonaria (Japonaria) hamuligera Kraus, 1960: 2 , figs 1–3 (syntypes in Zoologische Sammlung des Bayerischen Staates, Munich, Germany; type locality: Hokkaido, Japan; synonymized by Tanabe 1994).

Ezaria montana – Takakuwa 1954: 87, fig. 97. — Miyosi 1959: 83, fig. 101. — Jeekel 1971: 264. — Tanabe 1994: 103. Synonymized by Hoffman (1980).

Levizonus montanus – Tanabe 1992: 87; 1994: 103, figs 1–3; 2002: 2178. — Marek et al. 2014: 72. — Tanabe & Sota 2014: figs S2–S4, tables S1–S3.

Non Profontaria takakuwai – Murakami 1972: 59, fig. 2.

Diagnosis (after Tanabe 1994)

The species differs from congeners mainly by the straight gonopod telopodite apex (vs hooked in other congeners) with elongated, acute lateral angle (= SL) (vs different in other congeners) as well as the smooth central margin of the telopodite apex (vs with outgrowths and spinules in L. circularis , L. thaumasius , L. nakhodka sp. nov., L. distinctus , L. malewitschi ).

Distribution

Japan: central part of Hokkaido.

Remarks

This species was originally described by Takakuwa (1941) from Hokkaido Island with several collection points (Sapporo, Rumoi, Mt. Daisetu). Unfortunately he did not denote the precise type locality. Nevertheless Levizonus montanus appears to be spread in central part of Hokkaido (see Tanabe 1994).

Figures

Fig. 13. Distribution of species of the genus Levizonus Attems, 1898. Filled square: L. circularis Takakuwa, 1942. Filled circle: L. distinctus Mikhaljova, 1990. Open square: L. laqueatus Mikhaljova, 1981. Open triangle: L. nakhodka Mikhaljova sp. nov. Filled triangle: L. malewitschi Lokschina & Golovatch, 1977. Filled diamond: L. thaumasius Attems, 1898. Heart: L. takakuwai (Verhoeff, 1941). Oval: L. montanus (Takakuwa, 1941).