Leaf-miner: The larva at first mines the leaves in a gallery leading to
a blotch. Subsequently the larva forms a succession of cones (usually
three) by folding the tips of the leaves, and feeding withinthem
first a narrow lower-surface epidermal gallery, regularly intersecting
itself. In the next stage the mine becomes full depth. It remains
a small mine, either rectangular, or, more frequently, a triangle
in a vein axil, with frass along the sides. After a while the mine
is vacated and the larva continues in a leaf roll. Pupation in a
white cocoon. Neither in the mine nor in the larva a difference
is known with C. robustella. Moreover a temporal overlap
exists between the single larval generation of C. alchmiella,
and the second larval generation of robustella. Only the pupae and
adults enable a reliable identification (Bladmineerders van Europa).
leaf-mine is 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).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
See Patocka and Turcáni (2005a), Patocka and Zach (1995a)
for differences from robustella in the pupa (Bladmineerders van Europa).
The adult is illustrated in UKMoths.
genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
of year - larvae:
July -August (Bladmineerders van Europa).
of year - adults: May to July (UKMoths).
in Great Britain & Ireland: Britain including Chester
(Congleton), London (Putney Heath) (UKMoths);
Bedfordshire (VC30), Buckinghamshire (VC24), Caernarvonshire (VC49), Cambridgeshire (VC29),
Cheshire (VC58), Denbighshire; Derbyshire (VC57), East Cornwall (VC2), East Kent (VC15), East Norfolk (VC27), East Suffolk (VC25), Flintshire (VC51), Glamorganshire (VC41), Herefordshire (VC36), Hertfordshire (VC20),
Merionethshire (VC48), Middlesex (VC21), North Aberdeenshire (VC93), North Devon (VC4), North Ebudes (VC104),
North Essex (VC19), North Hampshire (VC12), North Somerset (VC6), North Wiltshire (VC7), North-east Yorkshire (VC62), Shropshire (VC40), South Aberdeenshire (VC92), South Devon (VC3), South Lancashire (VC59),
South Wiltshire (VC8), South-west Yorkshire (VC63), Staffordshire (VC39), Surrey (VC17), Warwickshire (VC38),
West Cornwall (VC1), West Gloucestershire (VC34), West Kent (VC16), West Norfolk (VC28), West Suffolk (VC26), West Sussex (VC13), Westmorland (VC69) and Worcestershire (VC37) (NBN
Gateway), the Channel
Is. (Karsholt and van Nieukerken in Fauna Europaea).
See also British
leafminers distribution map.
recorded in the Republic of Ireland and Northern Ireland (Karsholt and van Nieukerken
in Fauna Europaea). See also Ireland's NBDC interactive map.
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Albania,
Austria, Belarus, Belgium, Czech Republic, Danish mainland, Estonia,
Finland, French mainland, Germany, Greek mainland, Hungary, Italian
mainland, Latvia, Lithuania, Luxembourg, Macedonia, Norwegian mainland,
Poland, Portuguese mainland, Romania, Russia - Central, Northwest
and South, Slovakia, Spanish mainland, Sweden, Switzerland, 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:
|Achrysocharoides cilla (Walker, 1839)
|Sympiesis acalle (Walker, 1848)
|Microgaster globata (Linnaeus, 1758)
|Pholetesor circumscriptus (Nees, 1834)
|Rhysipolis decorator (Haliday, 1836)
|Rhysipolis hariolator (Haliday, 1836)
|Rhysipolis meditator (Haliday, 1836)
|Rhysipolis variabilis (Szépligeti, 1896)
|Diadegma pusio (Holmgren, 1860)
|Diadegma stigmatellae Horstmann, 1980
|Diaglyptidea conformis (Gmelin, 1790)
|Encrateola laevigata (Ratzeburg, 1848)
|Gelis areator (Panzer, 1804)
|Scambus brevicornis (Gravenhorst, 1829)
|Scambus calobatus (Gravenhorst, 1829)
|Scambus inanis (Schrank, 1802)
|Hercus fontinalis (Holmgren, 1857)