galls, leaf mines, leaf rolls, etc.
![Sycamore Periphyllus Aphid [Periphyllus acericola]](https://downsdiary.uk/wp-content/gallery/galls-mines/JO8V0267_EOS-1D_TheDowns_26Jun2025.jpg "Sycamore Periphyllus Aphid [Periphyllus acericola]")
Sycamore Periphyllus Aphid [Periphyllus acericola]
Aestivating nymphs of P. acericola in close proximity to a Sycamore Felt Gall Mite (Aceria pseudoplatani) erineum - Location : Banstead Downs, Surrey, England – Date of image : 26 Jun 2025
![Sycamore Felt Gall Mite [Aceria pseudoplatani]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_1628-JO8V0905_EOS-1D_TheDowns.jpg "Sycamore Felt Gall Mite [Aceria pseudoplatani]")
Sycamore Felt Gall Mite [Aceria pseudoplatani]
Mature erinea (abnormal felty growths of hairs) induced by the gall mite A. pseudoplatani on the underside of sycamore leaves (right) and immature erinea (left) - Location : Banstead Downs, Surrey, England – Dates of images : 26 Jun 2025 (left) and 11 Aug 2025
![Sycamore Felt Gall Mite [Aceria pseudoplatani]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_3163_EOS-1D_TheDowns_11Aug2025.jpg "Sycamore Felt Gall Mite [Aceria pseudoplatani]")
Sycamore Felt Gall Mite [Aceria pseudoplatani]
Mature erinea (abnormal felty growths of hairs) induced by the gall mite A. pseudoplatani on the underside of sycamore leaves - Location : Banstead Downs, Surrey, England – Date of image : 11 Aug 2025
![Tar Spot [Rhytisma acerinum]](https://downsdiary.uk/wp-content/gallery/galls-mines/JO8V3352_EOS-1D_TheDowns_17Aug2025.jpg "Tar Spot [Rhytisma acerinum]")
Tar Spot [Rhytisma acerinum]
R. acerinum fungus on upperside of a sycamore leaf - Location : Banstead Downs, Surrey, England – Date of image : 17 Aug 2025
![Tar Spot [Rhytisma acerinum] and Sycamore Gall Mite [Aceria cephalonea]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_4113_EOS-1D_TheDowns_25Sep2025-2.jpg "Tar Spot [Rhytisma acerinum] and Sycamore Gall Mite [Aceria cephalonea]")
Tar Spot [Rhytisma acerinum] and Sycamore Gall Mite [Aceria cephalonea]
Sycamore leaf with both Tar Spot fungus and red galls caused by the A. cephalonea mite - Location : Banstead Downs, Surrey, England – Date of image : 25 Sep 2025
![Maple Stilt [Caloptilia semifascia?]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_4218_EOS-1D_TheDowns_30Sep2025.jpg "Maple Stilt [Caloptilia semifascia?]")
Maple Stilt [Caloptilia semifascia?]
Rolled cone of a C. semifascia larva on a Norway Maple (Acer platanoides) leaf – Location : Banstead Downs, Surrey, England – Date of image : 30 Sep 2025
![Maple Dot [Stigmella aceris?]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_4215_EOS-1D_TheDowns_30Sep2025.jpg "Maple Dot [Stigmella aceris?]")
Maple Dot [Stigmella aceris?]
Leaf mine of S. aceris on a Norway Maple (Acer platanoides) leaf – Location : Banstead Downs, Surrey, England – Date of image : 30 Sep 2025
![Hazelnut Gall Mite [Phytoptus avellanae]](https://downsdiary.uk/wp-content/gallery/galls-mines/BD2_0167_7D_TheDowns_04Feb2026.jpg "Hazelnut Gall Mite [Phytoptus avellanae]")
Hazelnut Gall Mite [Phytoptus avellanae]
Big-bud gall caused through chemical alteration by the mite P. avellanae on a leaf bud of Common Hazel Corylus avellana - Location : Banstead Downs, Surrey, England – Date of image : 04 Feb 2026
![Lime Nail Gall Mite [Eriophyes tiliae]](https://downsdiary.uk/wp-content/gallery/galls-mines/IMG_1032_60D_TheDowns_19May2025.jpg "Lime Nail Gall Mite [Eriophyes tiliae]")
Lime Nail Gall Mite [Eriophyes tiliae]
Chemically induced nail gall caused by E. tiliae on the upper surface of a Tilia sp. leaf - Location : Banstead Downs, Surrey, England – Date of image : 19 May 2025
![Lime Gall Mite [Eriophyes exilis]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_0104_EOS-1D_TheDowns_19May2025.jpg "Lime Gall Mite [Eriophyes exilis]")
Lime Gall Mite [Eriophyes exilis]
Chemically induced hairy gall caused by E. exilis in a vein axil on the upper surface of a Tilia sp. leaf - Location : Banstead Downs, Surrey, England – Date of image : 19 May 2025
![2 different galls on lime [Tilia sp.]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_3441_EOS-1D_TheDowns_22Aug2025.jpg "2 different galls on lime [Tilia sp.]")
2 different galls on lime [Tilia sp.]
Lime Gall caused by the mite Eriophyes exilis at vein axils and a single Lime Nail Gall caused by E. tiliae on a Tilia sp. leaf - Location : Banstead Downs, Surrey, England – Date of image : 22 Aug 2025
![Lime Leaf-stalk Gall Midge [Contarinia tiliarum]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_0862_EOS-1D_TheDowns_11Jun2025.jpg "Lime Leaf-stalk Gall Midge [Contarinia tiliarum]")
Lime Leaf-stalk Gall Midge [Contarinia tiliarum]
Gall on leaf stem of Tilia sp. caused by the Lime Leaf-stalk Gall Midge (Contarinia tiliarum) - Location : Banstead Downs, Surrey, England – Date of image : 11 Jun 2025
![Sallow Gall Midge [Iteomyia capreae]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_3595_EOS-1D_TheDowns_30Aug2025.jpg "Sallow Gall Midge [Iteomyia capreae]")
Sallow Gall Midge [Iteomyia capreae]
Galls caused by larvae of I. capreae on upper surface of Salix sp. leaf - Location : Banstead Downs, Surrey, England – Date of image : 30 Aug 2025
![Willow Gall Sawfly [Euura pedunculi]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_4163-JO8V3753_EOS-1D_TheDowns_29Sep2025.jpg "Willow Gall Sawfly [Euura pedunculi]")
Willow Gall Sawfly [Euura pedunculi]
Larval gall of E. pedunculi on underside of Goat Willow (Salix caprea) leaf - Location : Banstead Downs, Surrey, England – Date of image : 29 Sep 2025
![Sallow Bean-gall Sawfly [Euura bridgmanii]](https://downsdiary.uk/wp-content/gallery/galls-mines/JO8V9977_EOS-1D_TheDowns_09Jun2025.jpg "Sallow Bean-gall Sawfly [Euura bridgmanii]")
Sallow Bean-gall Sawfly [Euura bridgmanii]
Upper surface of a leaf of Goat Willow (Salix caprea) showing a gall caused by a single larva of E. bridgmanii - Location : Banstead Downs, Surrey, England – Date of image : 09 Jun 2025
![Sallow Bean-gall Sawfly [Euura bridgmanii]](https://downsdiary.uk/wp-content/gallery/galls-mines/JO8V9983_EOS-1D_TheDowns_09Jun2025.jpg "Sallow Bean-gall Sawfly [Euura bridgmanii]")
Sallow Bean-gall Sawfly [Euura bridgmanii]
Under surface of a leaf of Goat Willow (Salix caprea) showing a gall caused by a single larva of E. bridgmanii - Location : Banstead Downs, Surrey, England – Date of image : 09 Jun 2025
![Oriental Chestnut Gall Wasp [Dryocosmus kuriphilus]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_2779_EOS-1D_TheDowns_30Jul2025.jpg "Oriental Chestnut Gall Wasp [Dryocosmus kuriphilus]")
Oriental Chestnut Gall Wasp [Dryocosmus kuriphilus]
Upper surface of a Sweet Chestnut (Castanea sativa) leaf with galls caused by D. kuriphilus forming at the leaf midrib causing distortion of the leaf - Location : Banstead Downs, Surrey, England – Date of image : 30 Jul 2025
![Dogwood Rivet Midge [Craneiobia corni]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_3290_EOS-1D_TheDowns_14Aug2025.jpg "Dogwood Rivet Midge [Craneiobia corni]")
Dogwood Rivet Midge [Craneiobia corni]
Galls caused by C. corni on upper surface of a Common Dogwood (Cornus sanguinea) leaf - Location : Banstead Downs, Surrey, England – Date of image : 14 Aug 2025
![Dogwood Rivet Midge [Craneiobia corni]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_3293_EOS-1D_TheDowns_14Aug2025.jpg "Dogwood Rivet Midge [Craneiobia corni]")
Dogwood Rivet Midge [Craneiobia corni]
Galls caused by C. corni on under surface of a Common Dogwood (Cornus sanguinea) leaf - Location : Banstead Downs, Surrey, England – Date of image : 14 Aug 2025
![Dogwood Rivet Midge [Craneiobia corni]](https://downsdiary.uk/wp-content/gallery/galls-mines/NG8_4718_EOS-1D_TheDowns_15Oct2025.jpg "Dogwood Rivet Midge [Craneiobia corni]")
Dogwood Rivet Midge [Craneiobia corni]
Dogwood Rivet Midge gall on a Common Dogwood (Cornus sanguinea) leaf – Location : Banstead Downs, Surrey, England – Date of image : 15 Oct 2025