Odiellus

Odiellus spinosus, copyright Dick Belgers.

Belongs within: Phalangiidae.

Odiellus is a genus of phalangiid harvestmen found through the greater part of the Holarctic region. They are characterised by a series of conical spines on the underside of the pedipalp femur, together with a narrow penis that often bears a dorso-distal groove (Martens 1978).

Characters (from Martens 1978): Truncus penis strikingly slender, continuously narrowed from the base distad, i.e. half or whole truncus almost parallel-sided; dorso-distally with gutter-shaped depression (exceptionally absent). Glans mostly grooved ventrally, laterally concave. Muscles usually restricted to basal half of truncus. Pedipalp with conical spines only on trochanter and underside of femur, spines usually no longer than half femur diameter, remaining segments only bristled; no segment with long apophysis, but femur mediodistally, patella, and tibia medially swollen in many species and brush-bristled. Supracheliceral lamellae smooth. Anterior margin of cephalothorax with 3-5 medial conical denticles, with the median three always longer and the midmost the longest. Tuber oculorum low and small, approximately two times its length from the anterior margin of the cephalothorax.

<==Odiellus Roewer 1923 MDP15 [=Odius Thorell 1876 nec Lilljeborg 1866 nec Stål 1867 C92; incl. Papillophus Hadži 1936 C92]
    |--O. spinosus (Bosc 1792) D04 (see below for synonymy)
    |--O. argentus Edgar 1971 E90 [=O. pictus argentus E66]
    |--O. brevispinus (Simon 1879) [=Acantholophus brevispina, Odius brevispina] D04
    |--O. carpetanus (Rambla 1959) [=Lacinius carpetanus] MDP15
    |--O. duriusculus (Simon 1878) [=Acantholophus duriusculus, Odius duriusculus] R23
    |--O. lendli (Soerensen 1894) K14 (see below for synonymy)
    |--O. meadei (Cambridge 1890) [=Oligolophus meadii, Odius meadii, Paroligolophus meadii] D04
    |--O. nubivagus Crosby & Bishop 1924 E90
    |--O. pictus (Wood 1868) SR01 (see below for synonymy)
    |--O. remyi (Doleschall 1852) D04 [=Opilio remyi D04, Phalangium remyi D04]
    |--O. seoanei (Simon 1878) [=Acantholophus seoanei, Odius seoanei] D04
    |--O. simplicipes (Simon 1879) [=Acantholophus simplicipes, Odius simplicipes] D04
    |--O. tienmushanensis T07
    |--O. triangularis T03
    |--O. troguloides (Lucas 1847) D04 (see below for synonymy)
    `--O. zecariensis Mkheidze 1952 K14

Odiellus lendli (Soerensen 1894) K14 [=Acantholophus lendlii M78, Odius lendlei R23; incl. Lacinius bienaszii Kulczyński 1909 M78, Odiellus bienascii M78, Odiellus bienaszii M78, Odius scaber Roewer 1915 M78, Odiellus scaber M78, Odiellus tuberculatus Morin 1934 M78]

Odiellus pictus (Wood 1868) SR01 [=Phalangium pictum E66, Mitopus pictus E66, Odius pictus E66, Oligolophus pictus E66; incl. Ol. ohioensis Weed 1889 CZ04, Lacinius ohioensis E66, Mitopus ohioensis E66, L. texanus Banks 1893 CH18]

Odiellus spinosus (Bosc 1792) D04 [=Phalangium spinosum D04, Acantholophus spinosus D04, Odius spinosus D04, Oligolophus spinosus D04; incl. *Papillophus crassus Hadži 1936 C92, Phalangium histrix Latreille 1798 D04, *Odius histrix C92, Opilio histrix D04, Phalangium hystrix D04, Oligolophus nollii Koch 1872 D04, Acantholophus obtusedentatus Koch 1869 D04]

Odiellus troguloides (Lucas 1847) D04 [=Phalangium troguloides D04, Acantholophus troguloides D04, Odius troguloides R23; incl. A. gallicus Simon 1879 D04, Lacinius gallicus M78, Odiellus gallicus D04, Odius gallicus D04]

*Type species of generic name indicated

REFERENCES

[CH18] Cokendolpher, J. C., & R. G. Holmberg. 2018. Harvestmen of the family Phalangiidae (Arachnida, Opiliones) in the Americas. Special Publications, Museum of Texas Tech University 67: 1–44.

[CZ04] Cokendolpher, J. C., & K. R. Zeiders. 2004. Clarence Moores Weed (1864–1947) and notes on his species of Opiliones (Arachnida). Occasional Papers Museum of Texas Tech University 237: 1–14.

[C92] Crawford, R. L. 1992. Catalogue of the genera and type species of the harvestman superfamily Phalangioidea (Arachnida). Burke Museum Contributions in Anthropology and Natural History 8: 1–60.

[D04] Delfosse, E. 2004. Catalogue préliminaire des Opilions de France métropolitaine (Arachnida Opiliones). Bulletin de Phyllie 20: 34–58.

[E66] Edgar, A. L. 1966. Phalangida of the Great Lakes region. American Midland Naturalist 75 (2): 347–366.

[E90] Edgar, A. L. 1990. Opiliones (Phalangida). In: Dindal, D. L. (ed.) Soil Biology Guide pp. 529–581. John Wiley & Sones: New York.

[K14] Kurt, K. 2014. Updated checklist of harvestmen (Arachnida: Opiliones) in Turkey. Arch. Biol. Sci. 66 (4): 1617–1631.

[M78] Martens, J. 1978. Spinnentiere, Arachnida: Weberknechte, Opiliones. Gustav Fischer Verlag: Jena.

[MDP15] Mitov, P. G., J. A. Dunlop & D. Penney. 2015. A new species of Lacinius in amber (Arachnida: Opiliones). Fossil Record 18: 37–42.

[R23] Roewer, C.-F. 1923. Die Weberknechte der Erde: Systematische Bearbeitung der bisher bekannnten Opiliones. Gustav Fischer: Jena.

[SR01] Shultz, J. W., & J. C. Regier. 2001. Phylogenetic anaysis of Phalangida (Arachnida, Opiliones) using two nuclear protein-coding genes supports monophyly of Palpatores. Journal of Arachnology 29: 189–200.

[T03] Tsurusaki, N. 2003. Phenology and biology of harvestmen in and near Sapporo, Hokkaido, Japan, with some taxonomical notes on Nelima suzukii n. sp. and allies (Arachnida: Opiliones). Acta Arachnologica 52: 5–24.

[T07] Tsurusaki, N. 2007. Phalangiidae Latreille, 1802. In: Pinto-da-Rocha, R., G. Machado & G. Giribet (eds) Harvestmen: The Biology of Opiliones pp. 123–126. Harvard University Press: Cambridge (Massachusetts).

Last updated: 25 May 2019.