The 'Autumnal Moth' ''(Epirrita autumnata)'' is a
moth of the family
Geometridae. It is found throughout the
Palearctic region and the
Near East and has a much wider distribution than its two close relatives (see below). In Lapland, in some years the numerous autumnal moth
larvae may kill square miles of birch forests on mountains.
This species is very similar to the
November Moth and
Pale November Moth and identification is usually only possible by examining the
genitalia. In general this is the least variable of the three with
melanic forms occurring less often. It is also usually on the wing earlier in the year, flying in September and October , although the flight seasons of all three species overlap.
The
larva feeds on a wide variety of
trees and
shrubs (see below). The species overwinters as an
egg.
# ''The flight season refers to the
British Isles. This may vary in other parts of the range.''
Recorded food plants
★ ''Abies'' -
Fir
★ ''Alnus'' -
Alder
★ ''Betula'' -
Birch
★ ''Carpinus'' -
Hornbeam
★ ''Corylus'' -
Hazel
★ ''Crataegus'' -
Hawthorn
★ ''Larix'' -
Larch
★ ''Lonicera'' -
Honeysuckle
★ ''Malus'' -
Apple
★ ''Picea'' -
Spruce
★ ''Pinus'' -
Pine
★ ''Populus'' -
Poplar
★ ''
Prunus''
★ ''Pseudotsuga'' -
Douglas-fir
★ ''Quercus'' -
Oak
★ ''Salix'' -
Willow
★ ''Sorbus'' -
Rowan
★ ''Thuja'' -
Western Redcedar
★ ''
Tilia'' - Lime
★ ''
Tsuga'' - Hemlock
★ ''Ulmus'' -
Elm
★ ''
Vaccinium''
★ ''Viburnum'' -
Nannyberry
Subspecies
★ ''E. a. altivagata''
★ ''E. a. autumnata''
External link
★
Autumnal Moth at hlasek.com
References
'Chinery, Michael' ''Collins Guide to the Insects of Britain and Western Europe'' 1986 (Reprinted 1991)
'Skinner, Bernard' ''
Colour Identification Guide to the Moths of the British Isles'' 1984