Leaf-miner: Winding full depth corridor up to 15 mm long with a long larval
chamber. Black frass in a central line, broad, but leaving a clear
zone at either side. Characteristically the corridor has 2-4 short,
frass-free, side branches (diverticula) occurring at points where
the main corridor makes a sharp turn. The first one often is interparenchymatous
tissue and difficult to see; the following turns usually have opening
in the lower epidermis at their end. Older larvae live free on the
leaf, creating windows; the exit hole is in the underside of the
leaf (Bladmineerders van Europa).
mine is also illustrated in British
Larva: The larvae of moths have a head capsule and chewing mouthparts with opposable mandibles (see video of a gracillarid larva feeding), six thoracic legs and abdominal legs (see examples).
Mining larva with a black ventral spot on each abdominal segment.
Free-living larva dull green above, pale yellow laterally and ventrally
with some fragmented purplish subdorsal lines (Langmaid, Porter
and Collins, 2007a) (see Bladmineerders van Europa).
larva is illustrated in British
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
The larva pupates in an oval cocoon that, contrary to what is usual in Bucculatrix,
is not ribbed lengthwise (Langmaid, Porter and Collins, 2007a)
(see Bladmineerders van Europa).
The adult is illustrated in UKMoths. The male
genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
of year - larvae: July -September (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including Hampshire
(Dogmersfield and Odiham Common), Suffolk and Surrey (Farnham) (British
leafminers); Bedfordshire (VC30), Cambridgeshire (VC29), Derbyshire (VC57), East Norfolk (VC27), East Suffolk (VC25), Herefordshire (VC36), Isle of Wight (VC10), North Essex (VC19),
South Devon (VC3), South Wiltshire (VC8), Staffordshire (VC39), West Kent (VC16), West Norfolk (VC28), West Suffolk (VC26) and Worcestershire (VC37) (NBN
See also British
leafminers distribution map.
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Austria,
Belarus, Belgium, Croatia, Czech Republic, Estonia, Finland, French
mainland, Germany, Greek mainland, Hungary, Italian mainland, Latvia,
Lithuania, Luxembourg, Macedonia, Norwegian mainland, Poland, Romania,
Russia - Central, East and Northwest, Sardinia, Slovakia, Sweden,
Switzerland, The Netherlands, Ukraine and Yugoslavia (Karsholt and
van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.