Orconectes immunis (Hagen, 1870)

English Papershell crayfish
ISEIA: A0 – Alert List
Lëtzebuergesch n/a EASIN
Français Ecrevisse calicot Wikipedia: Wikipedia - English - Orconectes immunis  Wikipedia - Français - Ecrevisse calicot Wikipedia - Deutsch - Kalikokrebs Nederlands - Calicotrivierkreeft
Deutsch Kalikokrebs Wikispecies: n/a (2017)
Nederlands Calicotrivierkreeft Back to the list of invertebrates

Importance and distribution in Luxembourg

The species has not yet been documented in Luxembourg.

Risk assessment

ISEIA protocol: A0 (3+3+3+2) = Alert List (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

  • 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]

 Last updated on Tuesday, April 10, 2018.

Dicranopalpus ramosus (Simon, 1909)

English n/a ISEIA: C2
Lëtzebuergesch Streckfouss EASIN
Français n/a Wikipedia: Wikipedia - English - Dicranopalpus ramosus  Wikipedia - Français - Dicranopalpus ramosus Wikipedia - Deutsch - Nederlands - Strekpoot
Deutsch Streckfuß Wikispecies: n/a (2017)
Nederlands Strekpoot Back to the list of invertebrates

Importance and distribution in Luxembourg

Distribution map of Dicranopalpus ramosus (Simon, 1909) in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

Five occurrences of the species in Luxembourg are documented in the Recorder database, the first dating from 2007. In the Gutland meanwhile widespread, in the Ösling probably still largely missing (Muster & Meyer 2014: 38-39).

Originally the species was found in Morocco. Later it spread into Europe, with first reports in Portugal (1948), where it spread to Spain (1965) and France (1969). The Netherlands were reached in 1992. Since 2004 it is known to occur in Germany. As early as 1957, it was reported in Bournemouth, southern England, from where it spread all over the island, reaching Scotland in 2000. In 2010, one occurrence in Denmark was documented. 1

Risk assessment

ISEIA protocol: C2 (2+2+2+1) (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

  • Muster, C. & M. Meyer, 2014. Verbreitungsatlas der Weberknechte des Großherzogtums Luxemburg. Ferrantia 70, Musée national d’histoire naturelle, Luxembourg, 112 p.
  • 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]

 Last updated on Friday, July 13, 2018.

Brigittea civica (Lucas, 1850)

English n/a ISEIA: C3
Lëtzebuergesch n/a EASIN
Français n/a Wikipedia: Wikipedia - English - Brigittea civica Nederlands - Zuiders kaardertje
Deutsch  n/a Wikispecies: n/a (2017)
Nederlands Zuiders kaardertje Back to the list of invertebrates

Importance and distribution in Luxembourg

Distribution map of Brigittea civica (Lucas, 1850) in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

29 occurrences of the species have been documented in Luxembourg in the Recorder database under it’s synonym Dictyna civica (Status: July 2018). The species is estimated to be very common.

Risk assessment

ISEIA protocol: C3 (2+1+2+1) (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

  • 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]

 Last updated on Tuesday, July 10, 2018.

Varroa destructor Anderson & Trueman, 2000

English Varroa mite ISEIA: A3 – Black List
Lëtzebuergesch Varroamilb EASIN
Français Varroa destructor Wikipedia: Wikipedia - English - Varroa mite Wikipedia - Français - Varroa destructor Wikipedia - Deutsch - Varroamilbe Nederlands
Deutsch Varroamilbe Wikispecies: Wikispecies - Varroa destructor
Nederlands Varroamijt Back to the list of invertebrates

Importance and distribution in Luxembourg

Varroa destructor has been observed in 1985 for the first time in Luxembourg (Meisch 1986). Since then it has spread throughout the country and is nowadays present in every beehive.

Risk assessment

ISEIA protocol: A3 (3+3+3+3) = Black List (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

  • Meisch, C., 1986. Die Varroamilbe. Geschichte der Ausbreitung, Portrait und Biologie. Pp. 174-177 in: Livre d’or du centenaire 1886-1986. Fédération des unions d’apiculteurs du grand-duché de Luxembourg.
  • 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]

 Last updated on Tuesday, April 10, 2018.

Opilio canestrinii (Thorell, 1876)

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

Importance and distribution in Luxembourg

Distribution map of Opilio canestrinii (Thorell, 1876) in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

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. It is very successful in man-made landscapes, even in bigger cities. It is a strong competitor for native species and seems able to displace or even replace those. There are indices 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 number and important percentages even in close-to-nature areas. Since the sixties, O. canestrinii has spread extremely quickly northwards through Europe and has become a more or less common species in his new areas.

Risk assessment

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

Bibliography concerning Luxembourg

  • 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)

 Last updated on Tuesday, April 10, 2018.

Leiobunum spp.

English Daddy long legs ISEIA: C2
Lëtzebuergesch Schneider EASIN
Français Leiobunum, faucheux Wikipedia: Wikipedia - English - Leiobunum Wikipedia - Français - Wikipedia - Deutsch - Namenloser Rückenkanker Nederlands
Deutsch Namenloser Rückenkanker  Wikispecies: n/a
Nederlands n/a Back to the list of invertebrates

Importance and distribution in Luxembourg

Distribution map of Leiobunum blackwalli in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

Since probably 2000, a completely unknown harvestman started its quick expansion through Central Europe. The species could be classified in the genus Leiobunum, but is different from other European species. It is assumed that it arrived with ships from oversea, probably reaching the Netherlands first. It is still unknown where exactly it came from. 1

The species was first documented for Luxembourg in 2009 (M. Meyer & C. Muster). Big clusters of the species (100-200 animals) have been observed in Rodange and Esch-sur-Alzette in the south of the country. The other findings were individuals or small groups of at most 10 animals. The species is common in the Gutland area while largely missing in the Oesling (Muster & Meyer 2014).

Leiobunum species generally tend to cluster together during daytimes. This behaviour is even stronger pronounced in the species in question. Mass aggregations of several hundreds of individuals have been observed.

Many observations show that in spite of its high reproduction rate this “new” Leiobunum species seems to coexist well with indigenous species and integrates in the native fauna without greater damages. But surely great colonies of the species compete for food with other similar predators.

Risk assessment

ISEIA protocol: C2 (2+2+2+1) (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

Distribution map of Leiobunum religiosum in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

  • 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]

 Last updated on Friday, April 20, 2018.

Notes:

  1. Cf. Wijnhoven H, AL Schönhofer & J Martens (2007) An unidentified harvestman Leiobunum sp. alarmingly invading Europe (Arachnida: Opiliones). Arachnol. Mitt. 34: 27-38. (https://www.natur-in-nrw.de/Download/Martens_Leiobunum_2007.pdf)

Dermacentor marginatus Leach, 1815

English Sheep tick ISEIA: C1
Lëtzebuergesch Schofszeck EASIN
Français n/a Wikipedia: Wikipedia - English - Sheep tick Wikipedia - Français - Dermacentor marginatus Wikipedia - Deutsch - Schafzecke Nederlands
Deutsch Schafzecke Wikispecies: Wikispecies - Dermacentor marginatus
Nederlands  n/a Back to the list of invertebrates

Importance and distribution in Luxembourg

Distribution map of Dermacentor marginatus Leach, 1815 in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

The tick Dermacentor marginatus was first documented for Luxembourg by Svenja Christian on 17th November 2015 in Wellenstein (Municipality of Schengen) near the Moselle valley.

Preferring dryer and warmer climate, this tick species is very likely to benefit from climate warming.

Risk assessment

ISEIA protocol: C1 (2+1+2+1) (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

  • 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]

 Last updated on Friday, April 20, 2018.

Cheiracanthium punctorium (Villers, 1789)

English Yellow sac spider 1 ISEIA: C2
Lëtzebuergesch Getëppelten Darfanger EASIN
Français Chiroconthe ponctu Wikipedia: Wikipedia - English - Yellow sac spider Wikipedia - Français - Chiroconthe ponctu Wikipedia - Deutsch - Ammen-Dornfinger Wikipedia - Nederlands - Grote bermzakspin
Deutsch Ammen-Dornfinger Wikispecies: Wikispecies - Cheiracanthium punctorium
Nederlands Grote bermzakspin Back to the list of invertebrates

Importance and distribution in Luxembourg

Cheiracanthium punctorium was first documented in 1988 at the nature conservation reserve Aarnescht near Oberanven, municipality of Niederanven (Hermann 1998). Only two observations of the species are documented in the Recorder database, the first from 2000 (Aarnescht near Oberanven, municipality of Niederanven), the second from 2014 (Haard, municipality of Dudelange).

Cheiracanthium punctorium lives in grasslands with preferably high-growing stalks. The species is rather thermophile and therefore geographically restricted to the south of Luxembourg. Most observations have been made in dry grassland in the Moselle-valley. Climate warming may favour further spread of the species. Being rather similar to several native Cheiracanthium species in its biology, C. punctorium should have no greater influence on the composition of native prey species in a colonised biotope. There may however be a certain competition with similar predators.

The species is known as quite aggressive when disturbed, especially pregnant or egg-protecting females. The chelicerae (fangs) of bigger individuals can easily penetrate through human skin and inject their venom. A bite of C. punctorium is painful and causes itching and swellings, sometimes stronger reactions like vertigo, nausea, shivering, circulatory collapse and light fever. The symptoms usually decline after 24-30 hours. As the species leads a rather hidden life-style, the probability for bites should be rather small. There is a certain, but unfortunately sometimes overstated, media exposure of the species and its venomousness.

Risk assessment

ISEIA protocol: C2 (2+2+2+1) (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

  • Hermann, E., 1998. Die Spinnen (Araneae) ausgewählter Halbtrockenrasen im Osten Luxemburgs. Bull. Soc. Nat. luxemb. 99: 189-199. [PDF 165KB]
  • 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]
  • Schneider, N., 2003. Auf Spurensuche. 22. Op der Aarnescht. Regulus 12/03: 22
  • Thiel, M., 2016. Ein unheimlicher Zuwanderer. Eine südeuropäische Giftspinne zieht zunehmend nach Norden. Luxemburger Wort, 14.9.2016.

 Last updated on Tuesday, April 10, 2018.

Notes:

  1. Cheiracanthium punctorium is one amongst several species commonly known as the yellow sac spider. Source: https://en.wikipedia.org/wiki/Cheiracanthium_punctorium.

Argiope bruennichi (Scopoli, 1772)

English Wasp spider ISEIA: C3
Lëtzebuergesch Harespel-Spann EASIN
Français Argiope frelon  Wikipedia: Wikipedia - English - Wasp spider Wikipedia - Français - Argiope frelon Wikipedia - Deutsch - Wespenspinne Nederlands
Deutsch Wespenspinne  Wikispecies: Wikispecies - Ambrosia artemisiifolia
Nederlands Wespspin Back to the list of invertebrates

Importance and distribution in Luxembourg

Distribution map of Argiope bruennichi (Scopoli, 1772) in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

57 occurrences of the species are documented for Luxembourg in the Recorder database (25/01/2018). Dr Feltgen first observed the species on 24.08.1906 in a garden in Lintgen (Weinachter 1906). The species can be considered as widespread in the Grand-Duchy.

On sites where this strikingly marked spider occurs, the individual number can be very high. Argiope bruennichi populations might be a certain threat for rare species of their favourite prey and  provoke changes in invertebrate communities of conquered sites. However the spider seems to integrate rather well in invaded countries, causing no great damages. The rapid spread of the species across Europe is generally thought to be facilitated by climate warming.

Argiope_bruennichi_Belgrad_060714

Argiope bruennichi in a pasture near Frisange (14.07.2006)

Risk assessment

ISEIA protocol: C3 (2+2+2+2) (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

  • 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]
  • Weinachter, P., 1906. Comptes Rendus des Séances Fauna 16, 10: 215 (Original article at eluxembourgensia).
  • Weiss, J., 1992. Die Ecke des Naturbeobachters. Regulus 3/92: 96-97

 Last updated on Tuesday, April 10, 2018.