Publication contents

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• 320 pages colour throughout Editorial Team: Connop, S.; Gardiner, T.; George, B.; Gibson, C.; Harvey, P. & Knowles, A. (Eds.) Journal of the Essex Field Club

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Inside front cover: Guidance for contributors; inside rear cover: publications for sale
1-19 Bradwell Bird Observatory 1954-2020 Graham Smith
20-38 ‘Devil’s Dung’: William Smith’s 1820 Geological Map of Essex William H. George
39-54 Middlewick Ranges, Colchester Robert Smith
55-74 An Essex case study: Lawford Tye - species records add weight to planning decision John Hall & Chris Gibson
74-75 What is life? Tony Boniface
WILDLIFE REVIEW OF THE YEAR
76-84 Hiding in plain sight: new plant finds in the Wivenhoe area Chris Gibson
85-89 Murder at the Garden Pond: Thalia dealbata - the (not very) beautiful assassin Chris & Judith Gibson
90-118 Essex 2019 Ornithological Summary Howard Vaughan
119-121 Diversity of stranded dead birds and mammals at Southend 2019-20 Roger A. Hewitt
121-126 Fossil and 2019 records of oceanic turtles from Essex Roger A. Hewitt
126-129 Some Essex mammals in 2019/2020 John Dobson
129-131 The arrival in Colchester of a new gall wasp on Holm Oak: Plagiotrochus quercusilicis (Hymenoptera: Cynipidae) Maria Fremlin
132-136 Lockdown finds including Valgus hemipterus (Linnaeus, 1758), (Scarabaeidae) being confirmed as an “Estabished Introduction” at Little Belhus Country Park, South Essex Edward Hardy
137-140 Two new bugs for Essex: Eurydema ornata and Pyrrhocoris apterus Chris & Judith Gibson
141-144 Firebug Pyrrhocoris apterus (Hemiptera: Pyrrhocoridae) distribution in Harwich Tim Gardiner & Libby Scarfe
145-146 Firebugs found at Two Tree Island Kathy Hunter
147-150 First Report of the Brown Marmorated Stink Bug Halyomorpha halys in Essex Yvonne Couch & Glen Powell
151-154 The sawfly Pamphilius sylvarum, new to Essex – twice... Dr Chris Gibson & Yvonne Couch
154-156 Elampus foveatus Mocsáry, 1914, new to Essex and Britain Adrian Knowles & Peter Harvey
157 Oxybelus argentatus Curtis, 1833 (Hymenoptera, Crabronidae) new to Essex Adrian Knowles
158-160 Essex Butterfly Report 2019 Robert Smith
161-179 Essex moth highlights 2019 Dougal Urquhart
179-180 A new species for Essex. 45.026 BF1491 Oxyptilus distans, Breckland Plume Peter Pyke
181-182 Dahlica triquetrella (Hübner, [1813]) new to North Essex with comments on Luffia lappidella (Goeze, 1783) Jeff B Higgott
CONSERVATION & MANAGEMENT
183-184 Essex Swifts - The Swift Partnership John Smart for Essex Swifts
185-205 Exploring the water quality of Essex Rivers. Water Temperature Tony Thorn
206-227 Mapping disturbance features in the Red Crag at Walton-on-the-Naze Geoff Rayner
STATUS, DISTRIBUTION & IDENTIFICATION
228-230 The use of the sense of smell for the identification of mushrooms and toadstools Tony Boniface
231-266 The Roman River in Friday Wood. A biodiversity survey and discussion Tony Thorn
266 Erratum to the 2019 Essex Naturalist paper "Variability in form and growth exhibited by species of freshwater unionid mussels in East Anglia" Tony Thorn
266 Ode to the Brown Trout Tony Thorn
267-276 London Clay and Harwich Formation nautiloid preservation in Essex Roger A. Hewitt
277-289 On the sarsen-stones of Arkesden and the nearby chalk escarpment Michael E. Howgate
TRANSACTIONS
290-293 Annual Report of Council for 2019-2020
294 Income and Expenditure Account Year ended for 2019
295 Balance sheet as at 31 December 2019
296-297 Independent examiner’s report to the Council of Essex Field Club
298-316 EFC Exhibition & Social 7 December 2019 Graham Smith