The 'Common Emerald' ''(Hemithea aestivaria)'' is a
moth of the family
Geometridae. The species is found throughout the
Nearctic and
Palearctic regions and the
Near East. In the
British Isles it is not found in
Scotland but is a common species elsewhere.
All wings are generally dark green with grey and white chequered fringes and narrow white
fascia, two on the forewing, one on the hindwing. The green colouration tends not to fade over time as much as in other emeralds. The hindwings have a sharply angled
termen giving the moth a very distinctive shape. The
wingspan is 30-35 mm. It flies at dusk and night in June and July and will come to light.
The
larva is green with reddish-brown markings and black v-shaped marks along the back. The young larva will feed on most plants but later it feeds on
trees and
shrubs. The species overwinters as a larva.
# ''The flight season refers to the
British Isles. This may vary in other parts of the range.''
Recorded food plants
★ ''
Aralia''
★ ''
Artemisia''
★ ''Betula'' -
Birch
★ ''
Camellia''
★ ''Carpinus'' -
Hornbeam
★ ''Castanea'' -
Chestnut
★ ''
Citrus''
★ ''Corylus'' -
Hazel
★ ''
Crataegus'' - Hawthorn
★ ''
Diervilla'' - Bush Honeysuckle
★ ''
Hypericum'' - St John's Wort
★ ''Juglans'' -
Walnut
★ ''Larix'' -
Larch
★ ''Ligustrum'' -
Privet
★ ''
Malus'' - Apple
★ ''Morus'' -
Mulberry
★ ''
Photinia''
★ ''
Prunus''
★ ''Quercus'' -
Oak
★ ''Rhamnus'' -
Buckthorn
★ ''
Ribes'' - Currant
★ ''Rosa'' -
Rose
★ ''
Rubus''
★ ''Salix'' -
Willow
★ ''Sorbus'' -
Rowan
★ ''
Tilia'' - Lime
★ ''
Vaccinium''
★ ''
Viburnum''
External link
★
Common Emerald at Markku Savela's Lepidoptera pages
References
★ 'Chinery, Michael' ''Collins Guide to the Insects of Britain and Western Europe'' 1986 (Reprinted 1991)
★ 'Skinner, Bernard' ''Colour Identification Guide to Moths of the British Isles'' 1984