Leaf-miner: The young larva makes one of, more probably, several tiny mines, from which much of the frass is ejected. Part of the frass grains are trapped in a slight spinning under the mine (Bladmineerders van Europa).
The initial mine is small. The larva then feeds mostly on the upper surface of the leaf, under a slight web (British
Larva:The free living larva is light or dark greyish green with three darker length lines. The lara lives under a slight spinning at the upperside of the leaf, casuing window feeding (Bladmineerders van Europa).
The young larva is green but it changes colour as it matures. The final instar larva is darker green dorsally with yellow-green blocks on its side and subdorsally (British
The larva is illustrated in UKMoths, Bladmineerders van Europa and British
Pupa: The pupa is illustrated in UKMoths.
The adult is illustrated in UKMoths.
and female genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
of year - larvae: Currently unknown.
of year - adults: Occurs in two broods, in May and June and again in August (UKMoths).
in Great Britain & Ireland: Widespread in Britain including Banffshire (VC94), Bedfordshire (VC30), Buckinghamshire (VC24), Caernarvonshire (VC49), Cambridgeshire (VC29), Cheshire (VC58), Denbighshire (VC50), Derbyshire (VC57), East Cornwall (VC2), East Kent (VC15), East Norfolk (VC27), East Perthshire (VC89), East Ross (and Cromarty), East Suffolk (VC25), East Sussex (VC14), East Sutherland (VC107), Easterness (east Inverness-shire And Nairnshire), Fife (and Kinrossshire), Glamorganshire (VC41), Herefordshire (VC36), Kincardineshire (VC91), Kirkcudbrightshire (VC73), Leicestershire And Rutland, Mid Perthshire (VC88), Middlesex (VC21), Montgomeryshire (VC47), North Aberdeenshire (VC93), North Devon (VC4), North Essex (VC19), North Hampshire (VC12), North Lincolnshire (VC54), North Somerset (VC6), North Wiltshire (VC7), North-east Yorkshire (VC62), Nottinghamshire (VC56), Shropshire (VC40), South Aberdeenshire (VC92), South Devon (VC3), South Essex (VC18), South Hampshire (VC11), South Lancashire (VC59), South Lincolnshire (VC53), South Somerset (VC5), South Wiltshire (VC8), South-west Yorkshire (VC63), Staffordshire (VC39), Surrey (VC17), Warwickshire (VC38), West Gloucestershire (VC34) and West Kent (NBN
Also recorded in Northern Ireland (Ireland's NBDC interactive map).
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elsewhere: Widespread in Europe including Albania, Austria, Belarus, Belgium, Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Greek mainland, Hungary, Italian mainland, Kaliningrad Region, Latvia, Luxembourg, Norwegian mainland, Poland, Romania, Russia (Central, North, Northwest), Sardinia, Sicily, Slovakia, Spanish mainland, Sweden, Switzerland, The Netherlands, and Ukraine (Karsholt and van Nieukerken
in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: