Leaf-miner: At first it inhabits a leaf-mine, then a leaf cone and, finally,
a sequence of two leaf rolls. The feeding signs can be confused
with those of C.
rufipennella on sycamore, so records of C.
semifascia should only be made if the adult is reared (UKMoths).
The mine begins as an inconspicuous, short, lower-surface epidermal gallery. This widens into a small triangular blotch, usually in a vein axil. The mine in this stage is fairly transparant. Older larvae live free in a leaf cone, made by folding down a leaf segment. In the course of its life the larva makes three cones, of increasing size, on the same leaf or not. Pupation in a flat, parchement-like, shining, yellowish white cocoon on either side of the leaf, generally near the margin (Bladmineerders van Europa).
Early mine a gallery leading to a squarish blotch. Later forms up to three successive tubes or cones by folding the tips of leaves downwards (British
leafminers).
As Caloptilia hauderi (the spring generation of semifascia)
- The larva forms a cone on a leaf and feeds within it (UKMoths). The mine is also described in British
leafminers and Bladmineerders van Europa (in Dutch only at present).
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). In a silken cocoon on either side of leaf UKMoths.
As
Caloptilia hauderi (the spring generation of semifascia)
-
Details
unknown.
Adult:
The adult is illustrated in UKMoths. The species is included in mothdissection.co.uk.
As
Caloptilia hauderi (the spring generation of semifascia)
- The adult is illustrated in UKMoths by Tim Freed.
Hosts in Great Britain and Ireland:
Comments:
Treated as junior subjective synonym of Tinea onustella Hübner,
1813 (Haworth, A. H. 1828). Lepidopterae Britannicae. Pars IV cum
indice finali. - :[Part 4 pagination: 512-609] (see De Prins,
J. and De Prins, W. 2010. Global Taxonomic Database of Gracillariidae
(Lepidoptera). World Wide Web electronic publication [accessed 25 November 2010]
.
Caloptilia
hauderi
is now known to be the spring generation of C.semifascia
in the UK (Langmaid et al. 2011. Nota Lepidopterologica 33,
191-197). Early mine is a gallery leading to a squarish blotch.
Later forms up to three successive tubes or cones by folding the
tips of leaves downwards
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: June and July and occasionally in late August
and September (British
leafminers).
As
Caloptilia hauderi (the spring generation of semifascia)
- June (British
leafminers).
Time
of year - adults: From late July to October and again, after
hibernating, until May (UKMoths).
As
Caloptilia hauderi (the spring generation of semifascia)
- July and August, overwintering as an adult (UKMoths).
Distribution
in Great Britain and Ireland: Widespread in England and South
Wales, but usually restricted to localities where Field maple (Acer
campestre) is common. Outlying populations occur in Caernarvon-Denbigh
and in Cumbria-York (UKMoths);
Bedfordshire, Breconshire, Buckinghamshire, Cambridgeshire, Carmarthenshire, Denbighshire, Derbyshire, Dorset, Durham, East Norfolk, East Suffolk,
Glamorgan, Hertfordshire, Huntingdonshire, Isle of Wight, Leicestershire, North Hampshire, North Somerset, South Hampshire, South Wiltshire, South-west Yorkshire, Stafford,
Surrey, West Gloucestershire and West Suffolk (NBN
Atlas).
See also British
leafminers distribution map.
As
Caloptilia hauderi (the spring generation of semifascia)
- A very local species, occurring in a small number of localities
in the south. It is known from the Isle of Wight and West Sussex,
including Ferring-by-Sea (UKMoths);
Isle of Wight and West Sussex (NBN
Atlas).
See also British Leafminers distribution map.
Distribution
elsewhere: Widespread in continental Europe including Austria,
Belgium, Czech Republic, Danish mainland, Estonia, Finland, French
mainland, Germany, Hungary, Italian mainland, Latvia, Norwegian
mainland, Poland, Romania, Russia - Central, East and South, Slovakia,
Sweden and Switzerland (Fauna Europaea).
As
Caloptilia hauderi (the spring generation of semifascia)
- Widespread in continental Europe including Austria, Czech Republic,
French mainland, Hungary, Italian mainland, Romania and Switzerland
(Fauna Europaea). NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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