Species Account

Select species and region:



Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Very common and fairly widespread resident.

Local Record: Grade 1   See here for explanation

Flight time: One generation, Jul-Sep.

Forewing: 16-18mm.

Foodplant: Herbaceous plants.

Regional breakdown:

Year first recorded18061953184618861940
Year last recorded20142014201420142014
Number of records4351141316581683491
Number of individuals95243141273951891120
Unique positions15211115816033
Unique locations15311215116632
Adult records4308136915831600481
Immature records61100

For the county, we have a total of 9596 records from 614 sites. First recorded in 1806.


73.064 Mouse Moth 02
© Nick Lawman
73.064 Mouse Moth 01
© Dave Williamson, 8 Aug 2010

Species Account

Sutton & Beaumont, 1989: Frequent to common in all five vice-counties. This species is known for its habit of congregating in crevices in buildings and old trees and scuttling away rather than flying when disturbed, hence the English name.

2012 (CHF): Widely distributed across the county in good numbers but records may have declined a little recently. The biggest catches have usually been from Spurn but it is not as common there as it was 20 - 30 years ago.

See background to species accounts.  Index of Vernacular names - Search - Random Species