The family Lasiocampidae comprises the eggar moths, of which 10 are resident species in Great Britain, one probably extinct and one probably an immigrant:
- Poecilocampa populi , December moth — throughout
- Trichiura crataegi , pale eggar — throughout (vulnerable [1] ) ‡*
- Eriogaster lanestris , small eggar — south, central (Nationally Scarce B)
- Malacosoma neustria , lackey — south, central (common) and north (scattered) (Vulnerable [1] ) ‡*
- Malacosoma castrensis , ground lackey — south-east, south-west (Nationally Scarce A)
- Lasiocampa trifolii , grass eggar — south, west-central (Nationally Scarce A)
- Lasiocampa trifolii f. flava (pale grass eggar) — south-east (Red Data Book)
- Lasiocampa quercus , oak eggar
- Lasiocampa quercus quercus — south, central
- Lasiocampa quercus f. callunae (northern eggar) — north, west
- Macrothylacia rubi , fox moth — throughout
- Dendrolimus pini , pine-tree lappet — rare immigrant
- Euthrix potatoria , drinker — south, central, north-west
- Phyllodesma ilicifolia , small lappet — presumed extinct
- Gastropacha quercifolia , lappet — south, east-central
Species listed in the 2007 UK Biodiversity Action Plan (BAP) [2] are indicated by a double-dagger symbol (‡)—species so listed for research purposes only are also indicated with an asterisk (‡*).
