Often found inside houses, this Asian species was introduced into Europe and beyond during the 1840s but can now be seen throughout the British Isles.
Adults vary greatly in size.
Flight Season
Flies throughout the year in multiple broods but most often encountered during the summer months. Outdoors the species cannot survive hard frosts.
Size and Family
- Family: Oecophoridae
- Small Sized
- Wingspan Range: 15-26mm
Conservation Status
- UK BAP: Not listed
- Introduced Resident
Caterpillar Food Plants
The caterpillars, which can live for two years, feed on detritus and other material that accumulates indoors behind skirting boards and other similar places.
Habitat
Often found in homes.
Distribution
- Countries – England, Wales, Scotland and Ireland
- Widespread and common

Brown House-moth - Koen Thonissen
Brown House-moth
Koen Thonissen

Brown House-moth - Koen Thonissen
Brown House-moth
Koen Thonissen

Brown House-moth - Ben Sale
Brown House-moth
Ben Sale

Brown House-moth - Patrick Clement
Brown House-moth
Patrick Clement

Brown House-moth - Lez Round
Brown House-moth
Lez Round

Brown House-moth - Sue Davies
Brown House-moth
Sue Davies

Brown House-moth - Sue Davies
Brown House-moth
Sue Davies

Brown House-moth - Dave Shenton
Brown House-moth
Dave Shenton