Mitopus morio

Mitopus morio is a species of harvestman belonging to the family Phalangiidae. [2]

Mitopus morio
Mitopus morio
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Arachnida
Order:
Opiliones
Suborder:
Eupnoi
Superfamily:
Phalangioidea
Family:
Phalangiidae
Genus:
Mitopus
Species:
M. morio
Binomial name
Mitopus morio
(Fabricius, 1779)
Synonyms[1]

Distribution

This species occurs in Europe, North Africa, Asia and in North America. [3][4]

Habitat

This very common species inhabits different biotopes, forests, heath and moorland, spruce forests, beech forests. meadows, human settlements and gardens, from the lowlands to the mountains.[3][5][6]

Description
Close-up on the body

Mitopus morio can reach a body length of about 4–6 millimetres (0.16–0.24 in) in males, of about 4–8.5 millimetres (0.16–0.33 in) in females. [5] However the body size is quite variable. The body is ovate, slightly narrower in the male. The head shows various timy bumps. The eyes are small and narrow, longer than wider, with a varying number of small spikes around the eyebrow. Also color is rather variable, but males are usually brown-colored, where as females are darker. A dark irregular saddle-like area is always present on the back, sometimes with narrow white edges and a longitudinal pinkish stripe in the centre. The legs varies from yellowish-brown to dark brown and are thin and long. [3] The length of the longest of the second pair of legs is 30-40 mm. Males have sharp, forward-pointing tooth under first segment of chelicera. [7]

This species is rather similar and may be confused with the females of Phalangium opilio.[3]

Biology

Adults can be found from the middle of May until the middle of November,[8] depending on the location. Eggs hatch at the end of March. [5] These harvestmen feed on small insects and other small arthropods.[3][5] Mitopus morio has been observed to walk using its first, third, and fourth sets of legs, using the unusually long second pair of legs to feel in front of it and probe its environment.

Bibliography
  • Cawley, M.. 2002, A review of the Irish harvestmen (Arachnida: Opiliones), Bulletin Irish biogeographical Society, 26: 106-137
  • Edgar, A. L., 1990. Opiliones (Phalangida). Pp. 529-581 in: D. L. Dindal, ed., Soil Biology Guide. John Wiley & Sons, New York, : i-xx, 1–1349.
  • Sankey, J.H.P & Savory, T.H. 1974, British Harvestmen. Arachnida : Opiliones, Synopses of the British Fauna, 4: 1-76
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References
  1. IRMNG
  2. Biolib
  3. Natura Bohemica (in Czech)
  4. Fauna Europaea
  5. J.K. Lindsey [http:/ /www.commanster.eu/commanster/Invertebrates/Spiders/SpSpiders/Mitopus.morio.htm Ecology of Commanster]
  6. Spider and Harvestman Recording Scheme website
  7. Bug Guide
  8. Inaturalist


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