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Essex Field Club
Essex Field Club
registered charity
no 1113963
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We are normally open to the public at our centre at Wat Tyler Country Park every Saturday, Sunday and bank holiday between 11am and 4pm. We are also usually open on Wednesdays between 10am and 4pm.

Spring recording Record your Robin Record Common Frog Rana temporaria
Record Alexanders Smyrnium olusatrum Record Tawny Mining Bee Andrena fulva
Record Dark-edged Bee Fly Bombylius major
Record Spring Flower Bee Anthophora plumipes
Record cuckoo bee Melecta albifrons

Species Account for Criomorphus williamsi

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Criomorphus williamsi  China, 1939
Auchenorrhyncha: Delphacidae

 
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National status: Nb
Essex RDB: Listed



Additional Phenology Data

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Taxonomic group: leafhoppers and allies (Auchenorrhyncha) - Part county data   
see Auchenorrhyncha Recording Scheme website
 
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Essex Red Data List comment
National trend: None known

Species text
Criomorphus williamsi is a very local pale brown and blackish grass-feeding planthopper, usually found in damp places. It is widely distributed but local in southern England, and not recorded from the north. Kirby (1992) states that most of the records form a rather tight cluster centred on Buckinghamshire and Oxfordshire. When the Essex Red Data list was prepared there was a single record from Essex, from Bedfords Park in 1984. Most sites are in areas of slightly to moderately acid soils. Water tables in areas of damp grassland should be kept high. Open grassland should be managed so as to retain a good range of plant species and structural diversity. This is best achieved by moderate grazing. Grazing levels should be carefully monitored, to ensure that overgrazing does not occur (Kirby, op. cit.). References

Species text last edited on Tue Mar 20th 2007 by user 3

Habitats

Broad Habitat Data (based on 1 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 1 records with structural habitat information)

Habitat Detail and Method (based on 1 records with habitat detail and method information)

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