Main: (Erebidae / Arctiinae)
72.021 [B&F: 2062] Water Ermine (Spilosoma urticae) (Esper, 1789)


Nationally scarce (Nb) in fens, water meadows and marshes, south and east of a line from the Wash to the Severn. In Hampshire and on the Isle of Wight although always very local, in the past this species was not uncommon, especially in the valleys of the Avon and Stour. However, since 1987, has only been reliably recorded twice, at West Park in June 2002 and Blashford Lakes in August 2007. Wingspan 38-46 mm. May be confused with very plain forms of White Ermine S. lubricipeda, but Water Ermine has the wings pure white, with very few black dots on the forewing and the basal segment of the labial palpus yellow (MBGBI Vol 9). Also superficially similar to Muslin Moth Diaphora mendica, but Water Ermine has abdomen yellow. A photograph or specimen will be required for future records to be accepted. Larva feeds on Water Mint, Water Dock, Yellow Loosestrife and Yellow Iris, over-wintering as a pupa.
Update: Add recording requirements (July 2020)

Flightime guide

Records Received By Year

% of total records
Max records: 2
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

Percentage of Total Records

Total records
Max Percentage: 0.0012435027
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

Phenology - Adult Records

Max records: 4
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Phenology - Larval Records

Max records: 1
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Distribution Map

Historical distribution at tetrad resolution
Click for density map

Record Density

As above but the larger the symbol, the greater the number of records
Click for distribution map

Detail records

VC0 null
VC8 Wiltshire (Hants county)
Martin Down (SU01)1986-Toynton, P-
West Park (SU11)15-Jun-2002oneGreen, DGAdult
VC10 Isle of Wight
Sandown (SZ58)1902oneIWNHSAdult
Sandown (SZ68)1912oneBlenkamAdult
Alverstone (SZ58)1934twoStowell, HAAdult
Freshwater (SZ38)30-Jun-2018oneCooke, DAdult
Sandown (SZ58)7143oneFox, RHLarval
Sandown (SZ58)9345oneFox, RHLarval
VC11 South Hampshire
Bishops Dyke, New Forest (SU30)11-Jun-1967oneElse, GRAdult
Browndown (SZ59)1969-Appleton, DM-
Minstead (SU21)1976-Siggs, LWAdult
Leigh Park (SU70)25-Jun-1986oneCollins, BAdult
Leigh Park (SU70)25-Jun-1986oneCollins, BAdult
Leigh Park (SU70)29-Jun-1986oneCollins, BAdult
Blashford Lakes NR (SU10)11-Aug-2007threeChapman, RAAdult
Curdridge (SU51)24-Jul-201311Chapman, RAAdult
North Solent NNR (SZ49)08-Aug-2013-Johnstone, GAdult
Dibden Purlieu (SU40)19-Jul-2014sixChapman, RAAdult
Dibden Purlieu (SU40)21-Jul-2014oneChapman, RAAdult
VC12 North Hampshire

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