Pulvinaria regalis Canard, 1968

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English Horse chestnut scale ISEIA: C3
Lëtzebuergesch n/a EASIN
Français n/a Wikipedia: Wikipedia - English - Horse chestnut scale
Deutsch Wollige Napfschildlaus Wikispecies: n/a (2017)
Nederlands n/a Back to the list of invertebrates

Report the species

Report Pulvinaria regalis to the National Museum of Natural History.

Brief description

Pulvinaria regalis Canard, 1968 is not generally regarded as a damaging pest. It usually feeds on trees that can easily withstand the sap loss. There have, however, been records of this species causing the death of a host plant, where young and stressed plants seem most at risk.

Status and distribution in Luxembourg

Distribution map of Pulvinaria regalis Canard, 1968 in Luxembourg. Data source: Recorder-Lux, iNaturalist & GBIF, 2019-12-13.

Pulvinaria regalis Canard, 1968 was first documented together with P. hydrangeae by Nico Schneider and Sandra Tanson in the year 2000 in Luxembourg City (Bonnevoie), Dudelange and Esch-sur-Alzette (Schneider & Tanson 2003: 87).

Currently, 29 records of the horse chestnut scale are accessible through the MNHNL-mdata portal (MNHNL, iNaturalist & GBIF 2019).

Other Pulvinaria taxa

Pulvinaria vitis (L.) is the only native species of the scale louse genus Pulvinaria. Recently, three other species of this genus, P. floccifera (Westwood), P. hydrangeae (Steinweden) and P. regalis Canard, have migrated to Luxembourg, where they have become established without any problems (Schneider & Tanson 2003: 87).

Risk assessment

ISEIA protocol: C3 (3+1+2+1) (Ries et al. 2017: 69).


  • MNHNL, 2000-. Pulvinaria regalis Canard, 1968 in Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. Musée national d’histoire naturelle, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-24]
  • MNHNL, iNaturalist & GBIF, 2019. Pulvinaria regalis Canard, 1968 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 2019-10-24]
  • 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. & S. Tanson, 2003. Les cochenilles pulvinaires (Hemiptera, Coccidae) du Luxembourg. Bull. Soc. Nat. luxemb. 103: 87-92. [PDF 626 KB]

 Page content last updated on 2019-10-24.