Ebrechtella tricuspidata

Ebrechtella tricuspidata is a species of crab spiders belonging to the family Thomisidae. [2]

Ebrechtella tricuspidata
Ebrechtella tricuspidata. Male
Female
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Thomisidae
Genus: Ebrechtella
Species:
E. tricuspidata
Binomial name
Ebrechtella tricuspidata
(Fabricius, 1775) [1]
Synonyms

Subspecies

Subspecies include: [3]

  • Ebrechtella tricuspidata tricuspidata (Fabricius, 1775) - Palearctic realm
  • Ebrechtella tricuspidata concolor (Caporiacco, 1935) - Karakorum

Distribution

This species is widespread in the Palearctic realm (Europe, Turkey, Caucasus, Russia to Central Asia, China, Korea, and Japan).[4][5] It is not found in the Great Britain.[6]

Habitat

These medium-sized crab spiders inhabit dry meadows and sunny forest edges, waiting for prey well camouflaged in flower and foliage. [7]

Description

Ebrechtella tricuspidata can reach approximately a body length of 5–6 millimetres (0.20–0.24 in) in females, while males are smaller, reaching a body length of 2.5–3.5 millimetres (0.098–0.138 in).[8] The cephalothorax (Prosoma) is light green in females, with sometimes indeterminate reddish markings on the back of the whitish-yellowish abdomen. These reddish markings usually consist of two broad rear-connected bands. Also legs are light green.

Males are clearly different-looking (sexual dimorphism). They have light brown cephalothorax with bright median stripe and the first two pairs of legs, while the bottle-shaped abdomen (Opisthosoma) is usually pale green, laterally with dark brown markings. [7]

Biology

Adults from both sexes can be found in May and June.

References

  1. Fabricius, J. C. (1775) Systema entomologiae, sistens insectorum classes, ordines, genera, species, adiectis, synonymis, locis descriptionibus observationibus., Flensburg and Lipsiae, 832 pp. (Araneae, pp. 431-441).
  2. Catalogue of life
  3. Biolib
  4. World Spider Catalog Version 19.0
  5. Fauna europaea
  6. Spider and Harvestman Recording Scheme website
  7. Spiders of Europe
  8. Roberts M. J. (1995): Collins Field Guide. Spiders of Britain & Northern Europe
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