Species Common Name Type of Causer Host Locations JH New Host Gen etc What3Words Grid Ref Acalitus brevitarsus Mite - - WP 15/07/2017 Alder Only few galls found TQ 41749 87181 Acalitus stenaspis Beech leaf roll mite Mite - - RW 15/07/2017 Beech Only few galls found (Reservoir Wood) tribune.acted.finest TQ 40735 87259 Aceria artemisiae Mite - - OSW 15/07/2017 Mugwort Several specimens found in OSW TQ 42257 87053 Aceria cephalonea Acer gall mite Mite - - BW 24/06/2017 Sycamore Common across patch TQ 40364 87404 Aceria erinea Mite Walnut Wanstead Park 11/06/2010 WF 08/07/2017 Walnut Galls found on both walnut tree specimens on Wanstead Flats TQ 41740 86164 Aceria fraxinivora Mite - - WP 24/06/2017 Ash Common especially on mature Ash on patch TQ 41701 87169 Aceria genistae Mite Broom Wanstead Park 02/08/2011 Aceria ilicis Mite Holm Oak City of London Cemetery, 05/03/2013 BW 17/06/2017 Holm Oak Several specimens found TQ 40020 87562 Aceria lateannulatus Mite Lime Wanstead Park 04/07/2005 Aceria macrochela Mite Field Maple Wanstead Flats, 25/08/2011 WF 08/07/2017 Field Maple A few specimens near Changing rooms by Cat and Dog TQ 39763 86462 Aceria macrorhynchus Mite Sycamore Wanstead Park, 11/06/2010 Aceria myriadeum Mite Field Maple - WF 17/06/2017 Field Maple Specimens found in Bush Wood TQ 40340 87381 Aceria nervisequa Beech felt gall Mite Beech - WP 18/06/2017 Beech Specimens found in Wanstead Park TQ 41974 87302 Aceria tenella Mite - - RW 24/06/2017 Hornbeam Only a couple of specimens found in Reservoir Wood TQ 40494 87201 Aceria ulmicola / campestricola Mite Elm - BW 17/06/2017 English Elm Common on English Elms on Patch TQ 40333 87374 Aceria pseudoplatani Mite Sycamore Wanstead Park, 10/07/2013 RW 24/06/2017 Sycamore A few specimens found in OSW decent.fallen.unique TQ 42277 86896 Aculops fuchsia Mite - - 19BR 08/07/2017 Fuchsia In my front garden cakes.kicked.richer TQ 39560 87246 Agrobacterium tumefaciens Bacteria - - WP 24/06/2017 Birch Many specimens likely but clear example nest to Perch Pond TQ 41749 87181 Andricus aries Ramshorn Gall Parasitic Wasp Pedunculate Oak Wanstead Flats, 26/07/2008; Wanstead Park, 08/04/2009 BW 24/06/2017 Ped Oak Very common across patch bank.taker.league TQ 40031 87214 Andricus curvator Parasitic Wasp - - BW 24/06/2017 Ped Oak Found at multiple locations finger.prep.cabin TQ 40793 86636 Andricus fecundator Artichoke Gall Parasitic Wasp Pedunculate Oak Wanstead Park, 14/07/2007 WP 24/06/2017 Ped Oak A few specimens found in Wanstead Park TQ 40854 87337 Andricus grossulariae Gooseberry Gall Parasitic Wasp Pedunculate Oak Bush Wood North, 05/05/2008 Andricus kollari Marble Gall Parasitic Wasp Pedunculate Oak Sewage Works Site, 17/03/2008 SS 17/06/2017 Pedunculate Oak Found on almost every oak TQ 39764 86930 Andricus quercuscalicis Knopper Gall Parasitic Wasp Pedunculate Oak Wanstead Park, 19/07/2007 SS 08/07/2017 Pedunculate Oak Found on almost every oak TQ 40990 86511 Andricus testaceipes Barnacle Gall Parasitic Wasp Sycamore Wanstead Flats, 17/12/2014 Aphelonyx cerricola ? Parasitic Wasp Turkey Oak Wanstead Park, 29/09/2008 Asphondylia sarothamni Fly (a gall midge) - - WP 24/06/17 Broom A couple of specimens found. Seen in leaf buds and possibly also in bean pod TQ 40881 86581 Biorhiza pallida Oak Apple Gall Parasitic Wasp Pedunculate Oak Wanstead Flats, 28/04/2008 WF 07/05/2017 Ped Oak One specimen found TQ 40328 86473 Contarinia tiliarum Fly (a gall midge) Lime Wanstead Flats, 01/06/2008 BW 11/06/2017 Common Lime One specimen found TQ 40012 87084 Crytosiphium artemisiae Aphid - - OSW 24/06/2017 Mugwort TQ 42202 87167 Cynips divisa Pea Gall Fly (a gall wasp) - - WF 16/07/2017 Sessile Oak punt.elbow.perky TQ 41566 85995 Cynips quercusfolii Cherry Gall Fly (a gall wasp) Pedunculate Oak Wanstead Flats, 25/08/2011 Dasineura acrophila ? Fly (a gall midge) Ash Wanstead Park, 20/06/2008 Dasineura fraxini Fly (a gall midge) - - WP 29/07/2017 Ash Specimen found elaborate.calculating.costs TQ411872 Dasineura gleditchiae Honeylocust podgall Fly (a gall midge) Honeylocust - Barclay Rd 24/06/2017Honey Locust One specimen found in planted street tree TQ395872 Dasineura plicatrix ? Fly (a gall midge) Bramble Capel Road garden, 26/04/2014 Dasineura rosae Fly (a gall midge) - - OSW 08/07/2017 Rose One specimen found in OSW TQ 42315 87130 Dasineura thomasiana Fly (a gall midge) - - BW 24/06/2017 SL Lime A couple of specimens found TQ 40048 87128 Dasineura tortilis Fly (a gall midge) Alder Wanstead Park, 29/07/2008 Diplolepsis rosae Robin's Pin-cushion Parasitic Wasp Dog Rose Sewage Works Site, 01/08/1999 OSW 18/07/2017 Rose sp One specimen found toned.valid.back TQ420869 Diplolepsis sp. Rose Pea Gall Parasitic Wasp Dog Rose Wanstead Park, 27/06/2007 Dryocosmus kuriphilus Oriental chestnut gall wasp Gall wasp - - BW 09/07/2017 Sweet Chestnut First specimen found in Epping Forest - confirmed by Forestry Commission Entomologist stump.dine.nest TQ 40195 87470 Eriophyes exilis ? Mite Lime Wanstead Park, 11/06/2010 Eriophyes inangulis Mite - - WP 15/07/2017 Alder A couple of specimens found TQ 41749 87181 Eriophyes lateannulatus Nail Gall Mite - - BW 24/06/2017 SL Lime Very common on Limes TQ 40055 87106 Eriophyes laevis Mite Alder Wanstead Park, 29/07/2008 WP 15/07/2017 Alder A couple of specimens found TQ 41749 87181 Eriophyes tetanothorax ? Mite Willow Wanstead Park, 05/06/2008 Eriophyes tiliae Nail Gall Mite Lime Wanstead Park, 23/07/2005 BW 24/06/2017 C Lime Very common on limes TQ 40012 87084 Eriosoma lanuginosum Pouch Gall Aphid Elm Wanstead Park, 20/06/2008 BW 17/06/2017 English Elm A couple of specimens found TQ 42153 87162 Eriosoma sp. Leaf-twist Gall Aphid Elm Wanstead Park, 17/05/2006 Exobasidium ? Fungi Rhododendron City of London Cemetery, 15/09/2008 Gymnosporangium sabinae Pear rust gall Fungi Pear - 19BR 19/06/2017 Pear In my garden, Barclay Rd E11 seats.slides.farm TQ 39557 87221 Hartigiola annulipes Fly ( a gall midge) Beech Wanstead Park, 22/08/2011 Iteomyia capreae ? Fly Willow Wanstead Park, 18/06/2005 WP 24/06/2017 Sallow Possible find TQ 41727 86321 Iteomyia major Fly ( a gall midge) - - WF 08/07/2017 Sallow Common in Sallow on Patch TQ 41727 86321 Kaltenbachiella pallida Aphid Elm Wanstead Park, 19/08/2012 Macrodiplosis pustularis Fly (a gall midge) - - WP 24/06/2017 Pedunculate A few specimens found TQ 40772 86633 Neuroterus albipes Smooth Spangle Gall Parasitic Wasp Pedunculate Oak Wanstead Park, 30/08/2008 Neuroterus anthracinus Parasitic Wasp - - WF 17/06/2017 Pedunculate Only one specimen found so far jumpy.nets.guess TQ 40523 86873 Neuroterus numismalis Silk Button Gall Parasitic Wasp Sessile Oak Wanstead Park, 31/07/2008 WF 17/06/2017 Pedunculate Extremely common in oak TQ 40740 86615 Neuroterus quercusbaccarum Oak Spangle Gall Parasitic Wasp Pedunculate Oak Wanstead Flats, 11/07/2007; Wanstead Park WF 17/06/2017 Pedunculate Extremely common in oak TQ 40904 87330 Neuroterus saliens Sea Anemone Gall Parasitic Wasp Turkey Oak Wanstead Park, 30/07/2008 Obolodiplosis robiniae Fly ( a gall midge) - - BW 09/07/2017 False Acacia One example found TQ 40020 87562 Phanacis hypochoeridis Hymenopteran Wasp Common Cat's-ear Wanstead Flats, 31/05/2017 Phragmidium violaceum Fungae - - WF 08/07/2017 Bramble Common on bramble Physemocecis ulmi blister gall Fly Elm Wanstead Park, 05/05/2005 Phytoptus abnormis Mite Lime Wanstead Park, 02/11/2012 Psyllopsis fraxini Leaflet roll gall Psyllid Bug Ash Sewage Works Site, 16/07/2008 Pontania bridgmanii Sawfly WF 10/07/2016 Sallow One found in 2016 TQ 41727 86321 Pontania pedunculi Sawfly WF 02/07/2017 Sallow Common in Sallow TQ 41727 86321 Pontania proxima Bean gall Sawfly OSW 02/07/2017 Crack Willow Very common on willows TQ 40917 87316 Puccina smyrnii ? Rust Alexanders Wanstead Flats, 04/01/2016 Taphrina pruni Fungus Blackthorn Sewage Works Site, 25/05/2015 Tetraneura ulmi Aphid Elm Wanstead Park, 05/06/2008 OSW 02/07/2017 English Elm A few specimens found TQ 42324 87108 Trioza remota Pimple Gall Psyllid Bug Holm Oak Wanstead Flats, 21/05/2008; Wanstead Park Urophora cardui Fly Creeping Thistle Sewage Works Site, 12/09/2000; Wanstead Flats, 24/08/2004 Vasates quadripedes Maple Bladder-gall Mite Silver Maple Wanstead Park, 07/09/2007 Zygiobia carpini Fly ( a gall midge) - - BW 09/07/2017 Hornbeam Only a couple of specimens found in Bush Wood TQ 40087 87248 Unknown Causer Mossy Willow Gall Unknown Willow/Salix City of London Cemetery, 28/05/2017 TOTAL.