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Not to be confused with the
gray dagger of North America (
A. grisea ).
The grey dagger (Acronicta psi ) is a moth of the family Noctuidae .
Distribution
[ edit ]
This species can be found from Europe [1] and North Africa to northern Iran , central Asia , southern and central Siberia and Mongolia . In the Levant it is found in Lebanon and Israel .
Habitat
[ edit ]
These moths mainly inhabit deciduous forests, hedgerows, parks and gardens, at an elevation up to 1,600 metres (5,200 ft ) above sea level.[2]
Description
[ edit ]
Acronicta psi has a wingspan of 34–45 mm (1.3–1.8 in ).[3] These moths have grey forewings with bold black dagger-shaped markings. (The Latin specific name also refers to these markings, as resembling the Greek letter psi , ψ .)[3] The hindwings are dirty grey, generally paler in the male.
The moth is very similar to the dark dagger (Acronicta tridens ) and identification is generally only possible by minute examination of the genitalia .[3] See Townsend et al.[4] However, in general this moth is generally darker in colour than the dark dagger and always lacks the white hindwings often present in the male of that species. Moreover, the larvae of the two species are very different.
Figures 2, 2a, 2b show larvae after their final moult
The larva of Acronicta psi is quite hairy, greyish or brownish below and black above, with red spots along the sides and a bold yellow stripe along the back. It has a distinctive horn just behind the head (absent from the larva of dark dagger).
Biology
[ edit ]
The grey dagger flies at night from June to August[a] [3] and is attracted to light and sometimes to sugar.
It feeds on a wide range of plants, mainly trees and shrubs (see list below). The species overwinters as a pupa .
Food plants
[ edit ]
Recorded food plants include:[5]
Aegopodium podagraria – ground-elder
Alnus glutinosa , Alnus incana – alder
Amelanchier spicata
Betula verrucosa , Betula pubescens – birch
Corylus avellana – hazel
Cotoneaster
Crataegus oxyacantha , Crataegus coccinea – hawthorn
Hedlundia hybrida (formerly Sorbus hybrida , and S. fennica )
Malus domestica – apple
Photinia – red robin
Populus tremula , Populus suaveolens – poplar spp.
Prunus domestica , Prunus cerasus , Prunus avium , Prunus padus
Pyrus communis – pear
Quercus robur – oak
Rosa – rose
Rubus idaeus – bramble
Salix caprea , Salix phylicifolia – willow
Sorbus aucuparia ; Sorbus intermedia ; Hedlundia hybrida (formerly Sorbus hybrida , and S. fennica )
Spiraea salicifolia
Tilia – lime
Ulmus glabra – elm
Gallery
[ edit ]
Notes
[ edit ]
^ The flight season refers to the British Isles . This may vary in other parts of their range.
References
[ edit ]
^ a b c d UK Moths
^ Martin C. Townsend, Jon Clifton and Brian Goodey (2010). British and Irish Moths: An Illustrated Guide to Selected Difficult Species . (covering the use of genitalia characters and other features) Butterfly Conservation.
^ "Acronicta" . Funet .
Bibliography
[ edit ]
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
External links
[ edit ]
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Grey_dagger&oldid=1190933458 "
C a t e g o r i e s :
● A c r o n i c t a
● M o t h s d e s c r i b e d i n 1 7 5 8
● M o t h s o f A f r i c a
● M o t h s o f A s i a
● M o t h s o f E u r o p e
● T a x a n a m e d b y C a r l L i n n a e u s
H i d d e n c a t e g o r i e s :
● A r t i c l e s w i t h s h o r t d e s c r i p t i o n
● S h o r t d e s c r i p t i o n i s d i f f e r e n t f r o m W i k i d a t a
● A r t i c l e s w i t h ' s p e c i e s ' m i c r o f o r m a t s
● A r t i c l e s c o n t a i n i n g A n c i e n t G r e e k ( t o 1 4 5 3 ) - l a n g u a g e t e x t
● C o m m o n s l i n k f r o m W i k i d a t a
● A r t i c l e s w i t h G e r m a n - l a n g u a g e s o u r c e s ( de )
● A r t i c l e s w i t h S w e d i s h - l a n g u a g e s o u r c e s ( sv )
● T h i s p a g e w a s l a s t e d i t e d o n 2 0 D e c e m b e r 2 0 2 3 , a t 1 8 : 2 2 ( U T C ) .
● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n .
● P r i v a c y p o l i c y
● A b o u t W i k i p e d i a
● D i s c l a i m e r s
● C o n t a c t W i k i p e d i a
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