Trogulus

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Trogulus
Trogulus tricarinatus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Opiliones
Family: Trogulidae
Genus: Trogulus
Latreille, 1802
Trogulus torosus, showing flattened and elongated body shape

Trogulus is a genus of Opiliones (also known as harvestmen) in the family Trogulidae. Harvestmen in the genus have large, elongated and flattened bodies (prosoma and opisthosoma) and a two-segmented tarsus segment on leg II, which distinguishes them from other genera in the family Trogulidae. The legs tend to be short compared to most harvestmen.[1] External morphology tends to be very uniform across species in the genus, making differentiation of species difficult.[2] Species occur in a range of habitats, but are most common in forests where their primary prey, snails, are abundant. Trogulus contains the largest known harvestman by body length, Trogulus torosus.[2]

Taxonomy and systematics[edit]

Genetic analysis indicates that the genus Trogulus can be divided into seven species groups[1][3]groupings of allopatric species with morphological similarities:[4]

  • T. gypseus SG
  • T. tricarinatus SG
  • T. coriziformis SG
  • T. torosus SG
  • T. hirtus SG
  • T. nepaeformis SG
  • T. squamatus SG

Two of the seven species groups listed above are not monophyletic. The T. torosus species group with the monophyletic T. hirtus species group nested within it and the T. gypseus species group which contains the monophyletic T. tricarinatus species group are both paraphyletic.

Species[edit]

Trogulus contains the following species:[5]

References[edit]

  1. ^ a b Schönhofer, Axel L.; Karaman, Ivo M.; Martens, Jochen (22 March 2013). "Revision of the genusTrogulus Latreille: the morphologically divergentTrogulus torosusspecies-group of the Balkan Peninsula (Opiliones: Dyspnoi: Trogulidae)". Zoological Journal of the Linnean Society. 167 (3): 360–388. doi:10.1111/zoj.12005. ISSN 0024-4082.
  2. ^ a b "Trogulus". Dr. rer. nat. Axel L. Schönhofer. Retrieved 2024-05-21.
  3. ^ Schönhofer, Axel L.; Martens, Jochen (2010-01-01). "Hidden Mediterranean diversity: Assessing species taxa by molecular phylogeny within the opilionid family Trogulidae (Arachnida, Opiliones)". Molecular Phylogenetics and Evolution. 54 (1): 59–75. doi:10.1016/j.ympev.2009.10.013. ISSN 1055-7903.
  4. ^ "species group". Oxford Reference. Retrieved 2024-05-22.
  5. ^ "Trogulus Latreille, 1802 | COL". www.catalogueoflife.org. Retrieved 2024-05-22.