Pulvinaria regalis Canard, 1968

horse-chestnut scale

on trees (shrubs)

Pulvinaria regalis: ovigerous females

UK, Berks © Malcolm Storey, Bioimages: females with ovisac

Pulvinaria regalis on Tilia cordata

Tilia cordata, Sweden (from Gertsson, 2011a)

parasite

The ovisac, that is produce in May-June, is for the greatest part covered by the body of the female. The young larvae live at the underside of the leaves, but soon migrate to the bark of the stem and thick branches. There also, as 3rd, final, instar larvae, they hibernate and mature in early spring.

host plants

polyphagous

Acer campestre, negundo, palmatum, platanoides, pseudoplatanus; Aesculus hippocastanum, pavia; Alnus glutinosa; Amelanchier; Cornus sanguinea; Corylus avellanal Crataegus; Euonymus japonicus; Fagus sylvatica; Hedera helix; Hydrangea; Ilex aquifolium; Koelreuteria paniculata;Laurus nobilis; Magnolia kobus; Malus; Morus; Platanus hispanica; Populus; Prunus avium; Rhus; Salix; Skimmia japonica; Sophora; Tilia cordata, x europaea, platyphyllos, tomentosa; Ulmus glabra, minor, procera; Zelkova serrata.

distribution within Europe

(PESI, 2018).

notes

Mainly in urban areas.

references

Egerström (2013a), Gertsson (2011a, 2016a), Hippe & Frey (1999a), Jansen (1999b, 2000a), Kozár, Guignard, Bachmann ao (1994a), van der Linden (2007a), Malumphy (2010a), Salisbury & Malumphy (2017a), Schmutterer & Hoffmann (2003a), Schneider & Tanson (2003a).

mod 29.xii.2018