Polydesmus angustus explained

Polydesmus angustus, also known as the flat-backed millipede, is a millipede in the genus Polydesmus native to Western Europe.[1] [2]

Description

The flat-backed millipede can be a rather small species of millipede, while typically reaching 24mm, in captivity there have been individuals that reached sixes of up to 50mm or as small as 18mm, this grand variety has been attributed to the quality of nutrition and humidity. As the name points out, Polydesmus angustus is a rather flat millipede, with all 20 segments' chitin extending laterally, an adaptation for digging and camouflaging in leaf litter. They are quite similar to other species in their same genus, P. coriaceus, P. denticulatus and P. inconstans, only being reliably identified by the shape of a male's gonopods or female epigyne.[3] [4]

Range and habitat

Polydesmus angustus is most commonly found in Western Europe, including the British Isles; [5] with some sightings in the East and West of the United States and southern Canada; likely in an invasive capacity.[6]

It's often been believed that the flat-headed millipede prefers a woodland habitat, seen as they can be found in their leaf litter;[7] more recent analysis suggest the species' true preference of heath and moorland environments, due to its tendency towards peat soils and dislike of soils with over 45% clay.[8]

External links

Notes and References

  1. Latzel . Robert . 1883 . Henri Gadeau de Kerville. Les Myriapodes de la Normandie (1re liste). . Bulletin de la Société des Amis des Sciences Naturelles de Rouen . 19 . 2 . 251–26.
  2. Web site: Catalogue of Life: 2009 Annual Checklist.
  3. David . Jean-Francois . Geoffroy . Jean-Jacques . 2011-12-20 . Additional moults into 'elongatus' males in laboratory-reared Polydesmus angustus Latzel, 1884 (Diplopoda, Polydesmida, Polydesmidae) – implications for taxonomy . ZooKeys . 156 . 41–48 . 10.3897/zookeys.156.2045 . free . 22303094 . 2011ZooK..156...41D . 1313-2970. 3253569 .
  4. Web site: 2023-04-05 . Polydesmus Angustus "Flat-backed Millipede" Care Guide . 2024-03-15 . en-US.
  5. Web site: Polydesmus angustus British Myriapod and Isopod Group . 2024-03-15 . bmig.org.uk.
  6. Web site: Observations . 2024-03-15 . iNaturalist . en.
  7. Schubart . O. . 1934 . Tausendfüßler oder Myriapoda. I: Diplopoda . Die Tierwelt Deutschlands und der Angrenzenden Meeresteile . 28.
  8. Gregory . S.J. . Northmoor Trust . Campbell . J.M. . 1996 . AN ATLAS OF OXFORDSHIRE MYRIAPODA: DIPLOPODA (Millipedes) and CHILOPODA (Centipedes) . Occasional Paper Published by Oxfordshire Museums . 19.