Lasiocampidae : Malacosomatinae
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Photo © Martin Wood

Immature stages

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Similar Dorset Species: None
Malacosoma neustria

(Linnaeus, 1758) 1634 / 66.003

Davey, P., 2009: A species found in England and Wales becoming less frequent as one heads north, the larva feeding on a variety of deciduous shrubs and plants. The larvae, which are highly distasteful to birds, behave in the same gregarious way as the Small Eggar, spinning a web on the host shrub to house the colony. The blue markings on the caterpillar are not pigment but Tyndall Blue, a colour derived from the interaction of light and micro-structures on the insect. When almost full-grown,... Read More

Recorded in 42 (105%) of 40 10k Squares.
First Recorded in 1895.
Last Recorded in 2019.
(Data up to end 2019)
Additional Stats

Forewing: 13-16mm
Flight: July - August
Foodplant:   Broadleaf trees and shrubs inc Rose family
Red List: Vulnerable (VU)
GB Status: Common
BAP Status: Declining (Research only)
Verification Grade:  Adult: 2
< Pale Eggar  |  Small Eggar >
List Species Records   [Show All Latest]
Latest 5 Records (data up to end 2019)
Date#VC10k Area
01/08/201919SY68 Weymouth / Martinstown
27/07/201929SY67 Portland / Weymouth
27/07/201919SZ07 Swanage
27/07/201919SY68 Weymouth / Martinstown
27/07/201929SY67 Portland / Weymouth

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