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Essex Field Club
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Species Account for Evergestis extimalis

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Evergestis extimalis  (Scopoli, 1763) 63.058
a moth
Lepidoptera: micromoths: Crambidae

Evergestis extimalis 3 Copyright: Graham Ekins

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Taxonomic group: micro moths (Lepidoptera: micromoths) - County data

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Verification Grade: Adult:

Essex RDB: Listed

Records: 54
First Record: 1997
Latest Record: 2021

1992-on hectads: 13
Pre-1992 hectads: 0
Total hectads: 13
Additional Phenology Data


Evergestis extimalis 3
Evergestis extimalis 3
Evergestis extimalis 2
Evergestis extimalis 2
Evergestis extimalis
Evergestis extimalis

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Evergestis extimalis on UK Moths website
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Species text
Although undoubtedly resident, and recently recorded from twenty-three vice-counties, this species is probably only breeding in the Breckland and along the Thames estuary. The larva feeds on the seed-heads of Cruciferae, especially perennial wall-rocket Diplotaxis tenuifolia (Thames estuary), and charlock Sinapis arvensis and white mustard S. alba (Breckland), making a silken web in which several larvae may be found together. When full grown, the larva makes a tough cocoon in soil in which it hibernates, pupating in May. Much habitat has probably been lost through afforestation and development, such as housing and road building. Vegetation succession leading to a loss of bare disturbed ground and a loss of the species' ruderal foodplants may threaten this moth. Management should aim to maintain a varied vegetation, from open disturbed ground, which will help in encouraging a continuity of foodplant supply, through to taller grassy vegetation. On some Breckland sites rotovation may be considered. This should be undertaken on rotation involving only a small area of land in any one year (Parsons, 1993). References

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


Broad Habitat Data (based on 17 records with habitat information)

no subhabitat data available

no structural habitat data available

Habitat Detail and Method (based on 54 records with habitat detail and method information)

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