Harlequin ladybird	Status LU: established. 1st record: 2004.
	Asiatescht Himmelsdéierchen	Status Eur.: established.
	Coccinelle asiatique	RA: ISEIA: B3, Watch List. Harmonia+: n/a.
	Asiatische Marienkäfer	Wikipedia: | Wikispecies: | CABI
	Veelkleurig Aziatisch lieveheersbeestje	Back to the list of invertebrates

Brief description

Harmonia axyridis (Pallas, 1773) lives in a very wide range of habitats: farmlands, orchards, wetlands, and forest margins. It seems to avoid deep forest habitats. H. axyridis is a strong intraguild predator and is able to displace native ladybird species, hence the population collapse of the two-spot ladybird Adalia bipunctata is largely attributable to its rapid expansion in North America and Europe. The Harlequin ladybird is also known to invade houses in winter (Adriaens et al. 2007).

Status and distribution in Luxembourg

Harmonia axyridis (Pallas, 1773) was observed in Luxembourg for the first time on 18th September 2004 by Nico Schneider at Schleifmillen, municipality of Junglinster (Schneider & Loomans 2006).

196 observations are documented in the mdata.mnhn.lu portal (MNHNL, iNaturalist & GBIF, 2020).

Risk assessment

ISEIA protocol

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

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

CABI: https://www.cabi.org/isc/datasheet/26515#toDistributionMaps

Bibliography

• Adriaens T., E. Branquart, P. De Clercq & J.-C. Grégoire, 2007. Harmonia database: Harmonia axyridis (Pallas, 1773). Harmonia version 1.2, Belgian Forum on Invasive Species. URL: http://ias.biodiversity.be [accessed on 2020-04-08]
• CABI, 2019. Harmonia axyridis (Pallas, 1773). In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-04-08]
• Guinet, J.-M., 2009. Etude de deux populations d’Harmonia axyridis (Pallas, 1773) (Insecta, Coleoptera, Coccinellidae) au Luxembourg. Bull. Soc. Nat. luxemb. 110: 147-152. [PDF 349 KB]
• MNHNL, iNaturalist & GBIF, 2020. Harmonia axyridis (Pallas, 1773) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [accessed 2020-04-06]
• 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. & A.J.M. Loomans, 2006. Sur la présence au Luxembourg de la coccinelle arlequin Harmonia axyridis (Pallas, 1773) (Insecta, Coleoptera, Coccinellidae). Bull. Soc. Nat. luxemb. 106: 71-74. [PDF 188 Kb]