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Visit Our Centre

EFC Centre at Wat Tyler Country ParkOur centre is available for visits on a pre-booked basis on Wednesdays between 10am - 4pm. The Club’s activities and displays are also usually open to the public on the first Saturday of the month 11am - 4pm.

About us

Dragonfly Project

Dragonfly Project on Zooniverse

Bluelands Quarry Facts

Purfleet on Thames

Video about the Club Essex Field Club video

registered charity
no 1113963
HLF Logo A-Z Page Index

Picture gallery

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O antiqua early instar O. fuscalis Oak Beauties Oak Beauty Oak Beauty 10-03-2021 Oak Beauty 2 Oak Beauty 4 Oak Beauty aberration Oak Beauty yellow form Oak Beauty. Oak Eggar 2 Oak Eggar Cat Oak Eggar female Oak Eggar female 2 Oak Eggar Moth Larva Oak Hook-tip Oak Hook-tip 2 Oak hook-tip 3 Oak leaf roller Backwarden 15.05.23 Oak leaf roller Backwarden 22.05.23 Oak leaf-roller Backwarden 26.05.22 Oak Lutestring Oak Lutestring 1 Oak Nycteoline 2 Oak Nycteoline 3 Oak Nycteoline 4 Oak nycteoline. Oak Processionary. Oak Rustic Oak Rustic 2 Oak Tree Pug Eupithecia dodoneata Oak-tree Pug Oak-tree Pug 2 Obscure agg. Obscure agg. 22-09-2020 Obscure Wainscot Obscure Wainscot Leucania obsoleta Ochlodes faustus Ochreous Pug Ochreous Pug Eupithecia indigata Ochropacha duplaris Common Lutestring Ochsenheimeria taurella Ochsenheimeria taurella 1 Ochsenheimeria vacculella. Ocypus olens (Devil's Coach Horse) Ocypus olens (Devil's Coach Horse) 2 Odacantha melanura Odiellus spinosus female Odontaspis winkleri fossil shark tooth Odontaspis winkleri fossil shark tooth 1 Odontomyia tigrina Odynerus melanocephalus Odynerus simillimus Odynerus spinipes chimney Oecetis ochracea Oecetis ochracea 2 Oedalea flavipes (female lateral view) Oedalea flavipes (female) Oedemera nobilis Oedemera nobilis (Swollen-thighed Flower Beetle) Oedemera nobilis (Swollen-thighed Flower Beetle) 2 Oedemera nobilis - male Oedemera nobilis 2 Oegoconia caradjai GD Oegoconia caradjai 2 Oegoconia caradjai. Oegoconia deauratella GD Ogcodes pallipes Oiceoptoma thoracicum Oidaematophorus lithodactyla (Dusky Plume) Oil Beetle larva 'mugging' a solitary bee Oil Beetle Meloe proscarabaeus Old Dispensary Romford Road Stratford Webbs Old Dispensary Romford Road Stratford Webbs Photo Old Dispensary Romford Road Stratford Webbs Photograph Old Lady Old wetland area Olde Billericay Six Quality Prints Advert Oleander Hawk-moth Daphnis nerii Oliarus leporinus Oliarus panzeri Oligia fasciuncula Middle-barred Minor 1 Olindia schumacherana Olive Olive Ipimorpha subtusa Olive 2 Olive Crescent Olive Crescent Stour Wood 11th July 2024 Ommatoiulus sabulosus Omocestus viridulus Omphalina pyxidata Omphaloscelis lunosa Lunar Underwing 4 on Ragwort Oncocera semirubella Oncocera semirubella 6 Oncocera semirubella 2 Oncocera semirubella 3 Oncocera semirubella 4 Oncocera semirubella 7 Oncotylus viridiflavus Oncotylus viridiflavus 2 One in the bush Ongar Bax 1939 Ongar Church Bax 1939 Ongar Old Houses Post Cards Ongar St Martin Church Ononis spinosa Onthophagus coenobita Opening1 Ophonus ardosiacus Ophrys apifera Ophrys insectifera Ophrys sphegodes Opilio canestrinii Opilio canestrinii on south facing wall of house - 10-12-2020 Opilo mollis Opilo mollis 01 Opisthograptis luteolata Opostega salaciella Orache Trachea atriplicis Orache Moth. Orange Conch Orange Footman Orange Footman 2 Orange Footman 3 Orange Moth Orange Moth Angerona prunaria Orange Moth (Female) and Large Fruit-tree Tortrix Orange Moth (Male) Orange Moth 1 Orange Moth 2 Orange Moth 5 Orange Moth F. corylaria Orange Moth f.corylaria (Female) Orange Moth. Orange Sallow Orange Sallow 08-09-2020 Side Orange Sallow 08-09-2020 Top Orange Sallow 2 Orange Sallow 3 Orange Sallow 4 Orange Swift Orange Swift 2 Orange Swift 3 Orange Swift F Orange swift in kitchen 23.08.18 Orange Swift M Orange Swift male Orange Swift Triodia sylvina 1 Orange Swift Triodia sylvina male Orange Tip (female and ovum) Orange Tip (Female) Orange Tip (m) Orange Tip (male) Orange U - basking Orange Underwing Orange-belted Plumehorn on kitchen window 18th June 2022 Orchesia undulata Orchesia undulata underside Orchestes quercus Orchestes rusci Orchestes rusci head Orchestes rusci side Orchestes signifer Orchis apifera Bee Orchid Orchis morio Orgyia antiqua Vapourer 8 Ornithomya avicularia female 20160624-6051 Ornithomya avicularia female 20160624-6063 Orsett Camp Quarry Orsett Church Orsett Depot Quarry (West Pit) in 1973 showing shrimp burrow. Ortholepis betulae. Orthonotus rufifrons Orthops kalmii Orthopygia glaucinalis Orthosia cerasi Orthosia gracilis Powdered Quaker Orthosia gracilis Powdered Quaker 1 Orthosia miniosa Blossom Underwing Orthosia opima Northern Drab Orthosia populeti Lead-coloured Drab 4 Orthotaenia undulana 01 Osea Island and Northey Island Osea Island and Northey Island from the air Osea Island end near hard way Photograph from yacht 1945 Osea Island House Photograph 1945 Osea Island Village Photograph1945 Osea landing barges off Osea Island Photograph 1945 Osea Pier Photograph 1945 Osmia caerulescens Osmia cornuta 21-03-2023 Osmia cornuta 27-04-2021 Osmia rufa Ostrinia nubilalis Other exposed section on west side Otiorhychus sulcatus - Vine Weevil Otiorhynchus sulcatus Otiorhynchus sulcatus (Vine Weevil) Otiorhynchus sulcatus (Vine Weevil) 2 Otiorhynchus sulcatus (Vine Weevil) 3 Otites guttatus Otodus megalodon shark teeth Pliocene Dalton Collection Otodus megalodon shark tooth Pliocene Otodus megalodon teeth on display at Green Centre Pitsea Otodus obliquus Otodus obliquus (Agassiz) labial surfaces Otodus obliquus (Agassiz) lingual surfaces Otodus obliquus 1 Otodus obliquus 2 Otodus obliquus shark teeth derived from London Clay Suffolk Otodus obliquus shark teeth London Clay derived Otodus obliquus Walton on the Naze ova - Blackthorn ova on Blackthorn overwintering pupa Ovington Church Ovington Hall Sarsen Stone (c.2005) Ovington Hall Sarsen Stone with covering of moss (2021) ovipositing on Sheeps Sorrel ovipositor Oxalis acetosella Wood Sorrel Oxford Ragwort Oxycarenus modestus female Oxycera rara Oxycera rara 4 Oxycera rara 2 Oxycera rara 3 Oxygen Isotopes Stages Stratigraphy Oxyna flavipennis Oxyna parietina Oxyptilus parvidactylus Ozyptila atomaria Ozyptila brevipes
O antiqua early instar
O. fuscalis
Oak Beauties
Oak Beauty
Oak Beauty 10-03-2021
Oak Beauty 2
Oak Beauty 4
Oak Beauty aberration
Oak Beauty yellow form
Oak Beauty.
Oak Eggar 2
Oak Eggar Cat
Oak Eggar female
Oak Eggar female 2
Oak Eggar Moth Larva
Oak Hook-tip
Oak Hook-tip 2
Oak hook-tip 3
Oak leaf roller Backwarden 15.05.23
Oak leaf roller Backwarden 22.05.23
Oak leaf-roller Backwarden 26.05.22
Oak Lutestring
Oak Lutestring 1
Oak Nycteoline 2
Oak Nycteoline 3
Oak Nycteoline 4
Oak nycteoline.
Oak Processionary.
Oak Rustic
Oak Rustic 2
Oak Tree Pug Eupithecia dodoneata
Oak-tree Pug
Oak-tree Pug 2
Obscure agg.
Obscure agg. 22-09-2020
Obscure Wainscot
Obscure Wainscot Leucania obsoleta
Ochlodes faustus
Ochreous Pug
Ochreous Pug Eupithecia indigata
Ochropacha duplaris Common Lutestring
Ochsenheimeria taurella
Ochsenheimeria taurella 1
Ochsenheimeria vacculella.
Ocypus olens (Devil's Coach Horse)
Ocypus olens (Devil's Coach Horse) 2
Odacantha melanura
Odiellus spinosus female
Odontaspis winkleri fossil shark tooth
Odontaspis winkleri fossil shark tooth 1
Odontomyia tigrina
Odynerus melanocephalus
Odynerus simillimus
Odynerus spinipes chimney
Oecetis ochracea
Oecetis ochracea 2
Oedalea flavipes (female lateral view)
Oedalea flavipes (female)
Oedemera nobilis
Oedemera nobilis (Swollen-thighed Flower Beetle)
Oedemera nobilis (Swollen-thighed Flower Beetle) 2
Oedemera nobilis - male
Oedemera nobilis 2
Oegoconia caradjai GD
Oegoconia caradjai 2
Oegoconia caradjai.
Oegoconia deauratella GD
Ogcodes pallipes
Oiceoptoma thoracicum
Oidaematophorus lithodactyla (Dusky Plume)
Oil Beetle larva 'mugging' a solitary bee
Oil Beetle Meloe proscarabaeus
Old Dispensary Romford Road Stratford Webbs
Old Dispensary Romford Road Stratford Webbs Photo
Old Dispensary Romford Road Stratford Webbs Photograph
Old Lady
Old wetland area
Olde Billericay Six Quality Prints Advert
Oleander Hawk-moth Daphnis nerii
Oliarus leporinus
Oliarus panzeri
Oligia fasciuncula Middle-barred Minor 1
Olindia schumacherana
Olive
Olive Ipimorpha subtusa
Olive 2
Olive Crescent
Olive Crescent Stour Wood 11th July 2024
Ommatoiulus sabulosus
Omocestus viridulus
Omphalina pyxidata
Omphaloscelis lunosa Lunar Underwing 4
on Ragwort
Oncocera semirubella
Oncocera semirubella 6
Oncocera semirubella 2
Oncocera semirubella 3
Oncocera semirubella 4
Oncocera semirubella 7
Oncotylus viridiflavus
Oncotylus viridiflavus 2
One in the bush
Ongar Bax 1939
Ongar Church Bax 1939
Ongar Old Houses Post Cards
Ongar St Martin Church
Ononis spinosa
Onthophagus coenobita
Opening1
Ophonus ardosiacus
Ophrys apifera
Ophrys insectifera
Ophrys sphegodes
Opilio canestrinii
Opilio canestrinii on south facing wall of house - 10-12-2020
Opilo mollis
Opilo mollis 01
Opisthograptis luteolata
Opostega salaciella
Orache Trachea atriplicis
Orache Moth.
Orange Conch
Orange Footman
Orange Footman 2
Orange Footman 3
Orange Moth
Orange Moth Angerona prunaria
Orange Moth (Female) and Large Fruit-tree Tortrix
Orange Moth (Male)
Orange Moth 1
Orange Moth 2
Orange Moth 5
Orange Moth F. corylaria
Orange Moth f.corylaria (Female)
Orange Moth.
Orange Sallow
Orange Sallow 08-09-2020 Side
Orange Sallow 08-09-2020 Top
Orange Sallow 2
Orange Sallow 3
Orange Sallow 4
Orange Swift
Orange Swift 2
Orange Swift 3
Orange Swift F
Orange swift in kitchen 23.08.18
Orange Swift M
Orange Swift male
Orange Swift Triodia sylvina 1
Orange Swift Triodia sylvina male
Orange Tip (female and ovum)
Orange Tip (Female)
Orange Tip (m)
Orange Tip (male)
Orange U - basking
Orange Underwing
Orange-belted Plumehorn on kitchen window 18th June 2022
Orchesia undulata
Orchesia undulata underside
Orchestes quercus
Orchestes rusci
Orchestes rusci head
Orchestes rusci side
Orchestes signifer
Orchis apifera Bee Orchid
Orchis morio
Orgyia antiqua Vapourer 8
Ornithomya avicularia female 20160624-6051
Ornithomya avicularia female 20160624-6063
Orsett Camp Quarry
Orsett Church
Orsett Depot Quarry (West Pit) in 1973 showing shrimp burrow.
Ortholepis betulae.
Orthonotus rufifrons
Orthops kalmii
Orthopygia glaucinalis
Orthosia cerasi
Orthosia gracilis Powdered Quaker
Orthosia gracilis Powdered Quaker 1
Orthosia miniosa Blossom Underwing
Orthosia opima Northern Drab
Orthosia populeti Lead-coloured Drab 4
Orthotaenia undulana 01
Osea Island and Northey Island
Osea Island and Northey Island from the air
Osea Island end near hard way Photograph from yacht 1945
Osea Island House Photograph 1945
Osea Island Village Photograph1945
Osea landing barges off Osea Island Photograph 1945
Osea Pier Photograph 1945
Osmia caerulescens
Osmia cornuta 21-03-2023
Osmia cornuta 27-04-2021
Osmia rufa
Ostrinia nubilalis
Other exposed section on west side
Otiorhychus sulcatus - Vine Weevil
Otiorhynchus sulcatus
Otiorhynchus sulcatus (Vine Weevil)
Otiorhynchus sulcatus (Vine Weevil) 2
Otiorhynchus sulcatus (Vine Weevil) 3
Otites guttatus
Otodus megalodon shark teeth Pliocene Dalton Collection
Otodus megalodon shark tooth Pliocene
Otodus megalodon teeth on display at Green Centre Pitsea
Otodus obliquus
Otodus obliquus (Agassiz) labial surfaces
Otodus obliquus (Agassiz) lingual surfaces
Otodus obliquus 1
Otodus obliquus 2
Otodus obliquus shark teeth derived from London Clay Suffolk
Otodus obliquus shark teeth London Clay derived
Otodus obliquus Walton on the Naze
ova - Blackthorn
ova on Blackthorn
overwintering pupa
Ovington Church
Ovington Hall Sarsen Stone (c.2005)
Ovington Hall Sarsen Stone with covering of moss (2021)
ovipositing on Sheeps Sorrel
ovipositor
Oxalis acetosella Wood Sorrel
Oxford Ragwort
Oxycarenus modestus female
Oxycera rara
Oxycera rara 4
Oxycera rara 2
Oxycera rara 3
Oxygen Isotopes Stages Stratigraphy
Oxyna flavipennis
Oxyna parietina
Oxyptilus parvidactylus
Ozyptila atomaria
Ozyptila brevipes