Species Account

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Distribution


 
 

Summary Data


Season (Adult / Immature):

National Status: Common

Local Status: Fairly common and fairly widespread resident.

Local Record: Grade 1   See here for explanation

Flight time: One generation, Jul-Sep.

Forewing: 14-16mm.

Foodplant: Grasses.

Regional breakdown:

 VC61VC62VC63VC64VC65
Year first recorded19291869188319601976
Year last recorded20142014201420142014
Number of records2204249294218127
Number of individuals4792365456389313
Unique positions11247746712
Unique locations11446717011
Adult records2186244277205126
Immature records81001

For the county, we have a total of 3092 records from 312 sites. First recorded in 1869.
 

Photos


2352 Dusky Sallow 04
© David Ashton, 12 Aug 2016
2352 Dusky Sallow 02
© Andy Nunn
2352 Dusky Sallow 03
© Dave Shenton
2352 Dusky Sallow 01
© Ian Andrews

Species Account


Sutton & Beaumont, 1989: Only recorded by Porritt (1883-86) from Huddersfield (VC63) and York (VC61/62/64). No further records occurred until 22.8.1955, when W. Reid captured one in Sheffield (Reid, 1955). It was next found in the County in the early 1970s when a great expansion of the species occurred. It spread from the south-east and is now widespread over south and central areas of Yorkshire. It has been commented (PQW pers. comm.) that the peak abundance after the range increase seems to have passed in some areas. Possibly regulatory factors such as predators or parasites are finding a balance suitable for the new conditions.

2012 (CHF): As the relief map shows well, this is a moth of the lowlands. Numbers have levelled out since 1996 and possibly declined a little since though it is still quite widespread. The biggest numbers tend to come from the Spurn area. It is rare to our north with scattered records up to the south of Northumberland.
 

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