Gracillariidae : Gracillariinae
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Photo © Dave Jones,  18/04/2018 - Stoke Holy Cross

Immature stages

Similar Norfolk Species
Caloptilia elongella
Pale Red Slender
Caloptilia rufipennella
Small Red Slender
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Caloptilia semifascia
Maple Slender
(Haworth, 1828)290 / 15.012
Norfolk status
Local.

Now thought to be bivoltine in some counties including Norfolk with two distinct forms for each brood.
The Summer brood showing a triangular costal blotch while the Autumn (hibernating) second brood shows a distinctive angled light streak starting at the leading edge of the forewing.

Leaf-mine: June-July
gallery leading to a squarish blotch, later forming up to 3 leaf tubes/cones.

On Sycamore, the feeding signs can also be confused with those of C. rufipennella and will need rearing to confirm.

Scattered VC27 records. First confirmed VC28 record in 2013 when cones were collected on Silver Maple at Lynford Arboretum and bred through. This is thought to be a new foodplant record for this species. (I. Barton, K. Rosewarne)

[MBGBI Vol2 p268]

Please note:

The rare C. hemidactylella (Recorded in Suffolk, not yet recorded in Norfolk) can only be separated as mines from C. semifascia by rearing through.

Morphology and DNA barcodes show that Calybites hauderi does not occur in the British Isles, but are the first brood of bivoltine Caloptilia semifascia. (Langmaid et al. 2011. Nota Lepidopterologica 33, 191-197).

Mine: Moth needs to be reared and, in some cases, possibly dissected.

Recorded in 30 (43%) of 69 10k Squares.
First Recorded in 1874.
Last Recorded in 2019.
Additional Stats

< Caloptilia falconipennella  |  Caloptilia hemidactylella >

Determination
First and second brood comparison - J R Langmaid (Nota Lep. 33)
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
31/07/2019127TG10 - Wymondham/Cringleford
26/07/2019127TG20 - Norwich
24/07/2019127TG10 - Wymondham/Cringleford
21/07/2019128TF90 - Watton/Shipdham
17/07/2019128TL79 - Methwold/Foulden
Show Details | 1990 to 2018 | 2000 to 2018 |
Express Record Caloptilia semifascia
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Copyright © Jim Wheeler 2019
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 10-12mm
Season: Sept - May (hibernates)
Foodplant:   Field Maple, Sycamore, Silver Maple, Norway Maple
Nat Status: Local
Verification Grade:  Adult: 2  Mine: R
 Immature Adult
Further info: Caloptilia semifascia
 
leafmines.co.uk
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Essex Field Club
Hants Moths
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Lepiforum.de
NBN Atlas
Historic UK Distribution (pre 2013)
Moth Dissection UK

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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ 2019. © James Wheeler - Norfolk Moths 2007 - 2019. Data © NOLA™ 2019
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