Species Account

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Distribution


 
 

Summary Data


Season (Adult / Immature):

National Status: Local

Local Status: Rare and local resident.

Local Record: Grade 3   See here for explanation

Flight time: One generation, Jun-Aug.

Forewing: 18-22mm.

Foodplant: Sycamore, Field Maple, maples, Horse-chestnut.

Regional breakdown:

 VC61VC62VC63VC64
Year first recorded1996193019612011
Year last recorded2014199920142013
Number of records12761032
Number of individuals13931152
Unique positions255302
Unique locations275312
Adult records1255981
Immature records2040

For the county, we have a total of 238 records from 65 sites. First recorded in 1930.
 

Photos


2279 Sycamore 02
© Dave Williamson
2279 Sycamore 01
© Ian Marshall, 27 June 2011

Species Account


Sutton & Beaumont, 1989: This species has never been included in the official County list. Records do exist, but because this species is so easily misidentified we do not feel able to accept these records. No specimens or photographs have been traced. Unless confirmation can be found this species cannot be added to the Yorkshire list.

Beaumont, 2002:
VC61. Bridlington, 29.7.1996 (KAB); Spurn, 29.6.1999, three 27.6-1.7.2000 (BRS); Kilnsea, 2.7.1999, 30.7.2000 (DPB). NEW VICE-COUNTY RECORD.
VC62. Levisham, 3.7.1992; Strensall, 12.7.1992 (GBS) (Jackson, 1993d). NEW COUNTY RECORD.

Argus 63, 2011:
VC64. Settle, 15.7.2011 (RW). NEW VICE-COUNTY RECORD.

2012 (CHF): This species was first found in London in the late 19th century but was rare until the 1950s. There are unconfirmed records in Yorkshire in the 1960s but the first confirmed record was from Levisham in 1992. This was followed by more records in VC62 and the east of VC61 but records died out at many of the old sites and a new wave of colonisation started in the Spurn area in 1999 and in the south of VC63 in 2006. The population has grown and is now expanding steadily north-west. This is mirrored on the national distribution map which shows a line of advance roughly from the Humber to the Severn. A record from Settle in 2011 was well ahead of this line and rather unexpected. This moth now looks likely to turn up in any part of the county. Take care not to confuse it with the rather similar Poplar Grey. Look out for the spectacular larva which feeds on various broadleaved trees and not just sycamore.
 

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