Species Account

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Summary Data

Season (Adult / Immature):

National Status: Nb

Local Status: Rare and very local resident.

Local Record: Grade 3   See here for explanation

Flight time: One generation, Feb-Apr.

Forewing: 15-21mm.

Foodplant: Blackthorn, Hawthorns.

Regional breakdown:

Year first recorded19041883188318831883
Year last recorded19502014188318831883
Number of records233431
Number of individuals176000
Unique positions227431
Unique locations222431
Adult records27431
Immature records021000

For the county, we have a total of 43 records from 32 sites. First recorded in 1883.


66.005 Small Eggar 04 larval web
© Richard Smith, 31 May 2011
66.005 Small Eggar 03 larva
© Richard Smith, 31 May 2011
66.005 Small Eggar 02 larval web
© Graham Feathestone
66.005 Small Eggar 01 male
© Graham Feathestone

Species Account

Sutton & Beaumont, 1989: This species has declined seriously over the whole country over the last few years, Yorkshire now being one of its last strongholds. It can be found at various sites in the Pickering area, where the larval webs are constructed in hawthorn, blackthorn or even dog rose (PQW pers. comm.). It seems to be able to exist in very low, close-trimmed hedges, so should not be in danger unless local farming practices change drastically. The pupae may wait over five or more winters, so that when a good spring arrives there may be a massive emergence resulting in many webs (AMRH pers. comm.).

2012 (CHF): In national decline and our small population in VC62, the most northerly in the country, is becoming nationally important. Most records are of larval webs in June and July and there have been sightings in some new areas in recent years.

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