Liacarus (Liacarus)

Liacarus subterraneus, copyright R. Penttinen.

Belongs within: Gustavioidea.

The type subgenus of the genus Liacarus is a subcosmopolitan group of oribatid mites found in soil litter. The type species, L. nitens, is a member of a group of species with narrowly fused lamellae bearing narrow cusps and a sharply pointed interlamellar mucro.

Characters (from Balogh & Balogh 1992): Prodorsum with narrow lamellae, converging apically, lateral parts of prodorsum usually uncovered; sensillus fusiform. Humeral region of notogaster with two pairs of setae c1 and c2 near each other. Genital plates with six pairs of setae. Legs tridactyle.

<==Liacarus Michael 1898 (Liacarus) (see below for synonymy) S04
    |--*L. (L.) nitens (Gervais 1844) S04 [=Oribata nitens S04, *Leiosoma nitens CH98]
    |--L. (L.) arduus Fujikawa 1989 S04
    |--L. (L.) atraktus (Woolley & Higgins 1966) S04 [=*Stenoxenillus atraktus BB92, Stonyxenillus atraktus W72]
    |--L. (L.) bidentatus Ewing 1918 S04
    |--L. (L.) borealis Wen 1991 S04
    |--L. (L.) brevilamellatus Mihelčič 1955 (see below for synonymy) S04
    |--L. (L.) ‘castaneus’ (Banks 1906) [=Notaspis castanea non Hermann 1804] S04
    |--L. (L.) celisi Balogh 1958 (n. d.) S04
    |--L. (L.) chiebunensis Fujita & Fujikawa 1984 S04
    |--L. (L.) chroniosus Woolley 1968 [incl. L. robustus Mihelčič 1954 non Ewing 1918] S04
    |--L. (L.) cidarus Woolley 1968 S04
    |--L. (L.) conjunctus Mihelčič 1954 S04
    |--L. (L.) contiguus Aoki 1969 S04
    |--L. (L.) coracinus (Koch 1841) [=Oribata coracina] S04
    |    |--L. c. coracinus S04 (see below for synonymy)
    |    `--L. c. simplex Mihelčič 1952 S04
    |--L. (L.) curvidentatus Balogh 1958 (n. d.) S04
    |--L. (L.) detosus Woolley 1968 S04
    |--L. (L.) emeiensis Wen 1991 S04
    |--L. (L.) externus Aoki 1987 S04
    |--L. (L.) flammeus Aoki 1967 S04
    |--L. (L.) gammatus Aoki 1967 S04
    |    |--L. g. gammatus S04
    |    `--L. g. coreanus Choi 1994 S04
    |--L. (L.) granulatus Willmann 1940 (n. d.) S04
    |--L. (L.) inermis Aoki 1965 S04
    |--L. (L.) janetscheki Mihelčič 1957 S04
    |--L. (L.) jordanoi Moraza & Pérez-Íñigo 1979 S04
    |--L. (L.) kanekoi Bayartogtokh & Aoki 2002 S04
    |--L. (L.) kilchini Choi 1985 S04
    |--L. (L.) koeszegiensis Balogh 1943 [incl. L. sejunctus Mihelčič 1954] S04
    |--L. (L.) laterostris Mihelčič 1954 S04
    |--L. (L.) latilamellatus Kaneko & Aoki 1982 S04
    |--L. (L.) latus Ewing 1909 S04
    |--L. (L.) lectronus Higgins & Woolley 1969 S04
    |--L. (L.) leleupi Balogh 1958 (n. d.) S04
    |--L. (L.) lencoranicus Krivolutsky 1967 S04
    |--L. (L.) logipilis (Moniez 1894) [=Leiosoma logipilis] S04
    |--L. (L.) longilamellatus Mihelčič 1954 S04
    |--L. (L.) lucidus Ewing 1909 S04
    |--L. (L.) luscus Hirauchi 1998 S04
    |--L. (L.) madeirensis Willmann 1939 S04
    |--L. (L.) marginatus (Nicolet 1855) [=Leiosoma marginatum] S04
    |--L. (L.) matshabelii Djaparidze 1980 S04
    |--L. (L.) medialis Banks 1910 S04
    |--L. (L.) montanus Aoki 1984 S04
    |--L. (L.) mucronatus Willmann 1939 S04
    |--L. (L.) murotensis Aoki 1988 S04
    |--L. (L.) nigrescens Pearce 1906 S04
    |--L. (L.) nitidulus Krivolutsky 1967 S04
    |--L. (L.) ocellatus Aoki 1987 S04
    |--L. (L.) olivaceus (Grube 1859) (n. d.) [=Leiosoma olivaceum] S04
    |--L. (L.) oribatelloides Winkler 1956 S04
    |--L. (L.) orthogonios Aoki 1959 S04
    |--L. (L.) ovatus Mihelčič 1954 [incl. L. mihelcici Woolley 1968] S04
    |--L. (L.) parvus Mihelčič 1954 S04
    |--L. (L.) perezinigoi Capilla 1972 S04
    |--L. (L.) pseudocontiguus Fujikawa 1991 S04
    |--L. (L.) regeli Djaparidze 1983 S04
    |--L. (L.) reticulatus Mahunka 1966 S04
    |--L. (L.) robustus Ewing 1918 S04
    |--L. (L.) rotundatus Mihelčič 1954 S04
    |--L. (L.) schweizeri Forsslund 1963 [incl. L. latus Schweizer 1956 non Ewing 1909] S04
    |--L. (L.) sphaericus Djaparidze 1980 S04
    |--L. (L.) spiniger Jacot 1937 S04
    |--L. (L.) subterraneus (Koch 1844) (see below for synonymy) S04
    |--L. (L.) tanzicus Mahunka 1983 S04
    |--L. (L.) tremellae (Linnaeus 1761) (n. d.) S04 (see below for synonymy)
    |--L. (L.) trichionus (Woolley & Higgins 1966) [=Leuroxenillus trichionus] S04
    |--L. (L.) tubifer Djaparidze & Melamud 1990 S04
    |--L. (L.) unjangensis Choi, Bayartogtokh & Aoki 2000 S04
    |--L. (L.) willmanni Pschorn-Walcher 1951 S04
    |--L. (L.) xylariae (Schrank 1803) (see below for synonymy) S04
    `--L. (L.) yayeyamensis Aoki 1973 S04

Liacarus Michael 1898 (Liacarus) [=Leiosoma Nicolet 1855 nec Stephens 1829 nec Chevrolat 1837; incl. Leuroxenillus Woolley & Higgins 1966, Stenoxenillus Woolley & Higgins 1966] S04

Liacarus (Liacarus) brevilamellatus Mihelčič 1955 [incl. L. cartalinicus Djaparidze 1979, L. internodentatus Kulijev 1962, L. major Mihelčič 1955, L. ovalis Mihelčič 1956, L. vastus Mihelčič 1956] S04

Liacarus (Liacarus) coracinus coracinus (Koch 1841) S04 [incl. Oribata politus Koch & Berendt 1854 S04, Leiosoma similis Nicolet 1855 S04, Liacarus similis G41, Li. vombi Dalenius 1950 S04]

Liacarus (Liacarus) subterraneus (Koch 1844) [=Oribata subterranea; incl. Li. gracilis Mihelčič 1954, Leiosoma lativentris Nicolet 1855] S04

Liacarus (Liacarus) tremellae (Linnaeus 1761) (n. d.) S04 [=Acarus tremellae S04; incl. Oribata globosa Koch 1844 S04, Conoppia globosus G36, Liacarus globosus G36]

Liacarus (Liacarus) xylariae (Schrank 1803) [=Acarus xylariae; incl. L. cuspidatus Mihelčič 1954, Oribata fusca Koch 1841, L. translamellatus Kulijev 1962] S04

*Type species of generic name indicated

REFERENCES

[BB92] Balogh, J., & P. Balogh. 1992. The Oribatid Mites Genera of the World vol. 1. Hungarian Natural History Museum: Budapest.

[CH98] Colloff, M. J.. & R. B. Halliday. 1998. Oribatid Mites: A catalogue of Australian genera and species. CSIRO Publishing: Collingwood.

[G36] Grandjean, F. 1936. Observations sur les oribates (10^e série). Bulletin du Muséum, 2e série, 8 (3): 246–253.

[G41] Grandjean, F. 1941. Statistique sexuelle et parthénogenèse chez les oribates (acariens). Comptes Rendus des Séances de l'Académie des Sciences 212: 463–466.

[S04] Subías, L. S. 2004. Listado sistemático, sinonímico y biogeográfico de los ácaros oribátidos (Acariformes, Oribatida) del mundo (1758–2002). Graellsia 60 (número extraordinario): 3–305.

[W72] Woolley, T. A. 1972. The systematics of the Liacaroidea (Acari: Cryptostigmata). Acarologia 14 (2): 250–257.

Last updated: 16 December 2018.