Subfamily: GRACILLARIINAE (7G 20S)Rest with front end raised (to ~40deg). Scape without eyecap
Foretibia, midtibia and distal half of midfemur strongly thickened with projecting coloured scales KEY TO GENERA & SPECIES of subfamilies Gracillariinae and Acrocercopinae
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Parectopa
Legs slender and smooth (and therefore this genus does not fit with the subfamily ID features).
Legs slender and smooth (and therefore this genus does not fit with the subfamily ID features).
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001 Parectopa ononidis
(Clover Stilt) 
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Caloptilia (12S+1)
Head with vertex and frons smooth; scape with slight pecten; S3 of labial palp as long as or equal to S2, pointed, ascending; maxillary palp 3/4 length of S2 of labial palp; foretibia slightly thickened, midtibia and midfemur strongly thickened, hindtibia smooth, slender; hindtarsus 1.5–2x length of hindtibia; hindwing 1/2–3/4 width of forewing, cilia 3x width of wing. Most species overwinter as adult.
Head with vertex and frons smooth; scape with slight pecten; S3 of labial palp as long as or equal to S2, pointed, ascending; maxillary palp 3/4 length of S2 of labial palp; foretibia slightly thickened, midtibia and midfemur strongly thickened, hindtibia smooth, slender; hindtarsus 1.5–2x length of hindtibia; hindwing 1/2–3/4 width of forewing, cilia 3x width of wing. Most species overwinter as adult.
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002 Caloptilia cuculipennella
(Privet Stilt) 
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003 Caloptilia populetorum
(Black-dot Stilt) 
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004 Caloptilia elongella
(Alder Stilt) 
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005 Caloptilia betulicola
(Birch Stilt) 
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006 Caloptilia rufipennella
(Rufous Stilt) 
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007 Caloptilia azaleella
(Azalea Leaf-miner) 
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008 Caloptilia alchimiella
(Oak Stilt) 
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009 Caloptilia robustella
(Shaded Oak Stilt) 
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010 Caloptilia stigmatella
(Willow Stilt) 
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011 Caloptilia falconipennella
(Dark Alder Stilt) 
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0115 Caloptilia fidella
(Hop Stilt) New to Britain, July 2021, East Suffolk |
012 Caloptilia semifascia
(Maple Stilt) 
Caloptilia semifascia hauderi
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013 Caloptilia hemidactylella
(Scarce Maple Stilt) 
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0131 Caloptilia honoratella
(Pale Maple Stilt) 
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Gracillaria
Considered as Caloptilia in MBGBI2 014 Gracillaria syringella
(Garden Stilt) 
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Aspilapteryx
As Caloptilia except fw V 4&5 coincident. 015 Aspilapteryx tringipennella
(Ribwort Stilt) 
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Euspilapteryx
016 Euspilapteryx auroguttella
(Yellow-dotted Stilt) 
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Calybites
As Caloptilia except fw V4&5 coincident and stalked with V3. 017 Calybites phasianipennella
(White-marked Stilt) 
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017 Calybites phasianipennella form quadruplella 
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Povolnya
Considered as Calybites in MBGBI2 018 Povolnya leucapennella
(Scarce Oak Stilt) 
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Revised 07/03/2025
