Opilio canestrinii (Thorell, 1876)

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English n/a ISEIA: B3 – Watch List
Lëtzebuergesch Roude Schneider EASIN
Français n/a Wikipedia: Wikipedia - English - Opilio canestrinii  Wikipedia - Français - Opilio canestrinii Wikipedia - Deutsch - Apenninenkanker Nederlands
Deutsch Apenninen-Kanker Wikispecies: n/a (2017)
Nederlands Rode hooiwagen Back to the list of invertebrates

Report the species

Report Opilio canestrinii to the National Museum of Natural History.

Status and distribution in Luxembourg

Distribution map of Opilio canestrinii (Thorell, 1876) in Luxembourg. Data source: Recorder-Lux, iNaturalist & GBIF, 2020-01-27.

The first documented occurrence of the species in Luxembourg dates from 2009. It was found by C. Muster on 20th August 2009 in Fort Berlaimont (Municipality of Luxembourg).

Opilio canestrinii is the second most common harvestman in Luxembourg and can be found in every region of the country.

Opilio canestrinii colonises a number of open habitats independently of their moisture levels. It is very successful in man-made landscapes, even in bigger cities. It is a strong competitor to native species and seems able to displace or even replace them. There are indicators that the similar Opilio parietinus, traditionally a common species on house walls, has nearly vanished, just a few years after the arrival of O. canestrinii.

Several sources describe this harvestman as a typical species of urban areas. In Luxembourg however, the data provided from different projects show evidence that the species occurs in great numbers and important percentages even in close-to-nature areas. Since the 1960s, O. canestrinii has spread extremely quickly northwards through Europe and has become a more or less common species in their new areas.

Risk assessment

ISEIA protocol: B3 (3+2+3+1) = Watch List (Ries et al. 2017: 68).


  • Muster, C. & M. Meyer, 2014. Verbreitungsatlas der Weberknechte des Großherzogtums Luxemburg. Ferrantia 70. Musée national d’histoire naturelle, Luxembourg, 112 S. (PDF 3.8 MB)
  • Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]
  • Weber, D. (Hrsg.), 2014. Die Höhlenfauna Luxemburgs. Ferrantia 69. Musée national d’histoire naturelle Luxembourg, 408 pp. + CD-Rom (PDF 19 MB)

 Page content last updated on 2019-12-10. Last proofread by Caroline Grounds on 2019-12-10.