ESSEX NATURALIST Volume 19 (New series) 2002 I -4 Report of the Essex Field Club for 2001 -2002 5-9 Agreement with the London Borough of Newham 10 Income and expenditure account for 2001 II Balance sheet for 2001 12-14 Essex Field Club Annual Exhibition 1 December 2001 15-17 The 2002 AGM address. The changing flora of the Essex countryside Charles Watson 18-22 1913 - 2001: a lifetime of difference Graham Smith 23-42 American Bittern Botaurus lentiginosus: an historic first for Essex Nick Green WILDLIFE REVIEW OF THE YEAR 43-62 Wildlife and conservation review of 2001 Chris Gibson 63-66 Review of the wildlife of Epping Forest 2001 -March 2002 Jeremy Dagley 66 Some notable fungi records in Autumn 2001 Tony Boniface 67 Three interesting diatoms from Epping Forest pools Hilary Belcher 68 New Charophyte (Stonewort) records Ken Adams 69-70 Bee Orchids and Corn Marigold in North Essex Terri Tarpey 70-71 Edible and Marsh Frogs in Essex - notes for 2001 David Scott 71-72 Bats in Essex John Dobson 72-74 Some notable Essex Coleoptera in 2001 Jerry Bowdrey 74-75 Further notes on Callicera spinolae and C. aurata, and another hoverfly Criorhina ranunculi new to Essex from Hylands Park Mark Hanson 76-78 The picture winged fly Dorycera graminum (F.) (Diptera, Ulidiidae) in abundance at a threatened site in West Thurrock, with records from other sites in South Essex Peter Harvey 78-79 Bumblebees in Essex in 2001 Ted Benton 80-86 Review of the Lepidoptera of Essex for the year 2001 Brian Goodey 86-88 Essex Dragonflies (Odonata): an update Ted Benton & John Dobson 89-90 Update of Orthoptera records 2000-2001 Alan Wake CONSERVATION AND MANAGEMENT 91-94 Hawksmere Springs Nature Reserve - a wildlife oasis Andrew May 95-99 American Mink Mustela vison in Essex Chris Mason & Sheila MacDonald 100-106 Dragonfly and Damselfly monitoring on the Writtle College estate - the first five years Tim Gardiner, Martin Heywood, Robin Field & Michelle Pye 107-112 The Yellow Meadow Ant Lasius flavus: spatial analysis of its nest distribution Stephen Moore STATUS, DISTRIBUTION AND IDENTIFICATION 113-134 Notes on Essex Specialities. 7: the distribution of the Oxlip Primula elatior (L.) Hill in Essex Ray Tabor 135-142 The Boletes of Essex Geoffrey Kibby & Tony Boniface 143-150 The fungi of Fryerning Churchyard Graham Smith 151 -159 Glow-worms Lampyris noctiluca L. (Coleoptera: Lampyridae) in Essex: results of the 2001 Glow-worm survey Tim Gardiner, Michelle Pye & Robin Field 160-163 Correction to The Bryophyte flora of the anthills at Old Hall Marshes in Essex Naturalist 18 (N.S.): 169-176 Front cover photograph Oxlip Primula elatior at Bradfield Woods © Chris Gibson £10 (free to members)