• Silurian (female)
    Silurian (female)

Scientific name: Eriopygodes imbecilla

June - July. Usually only seen in small area in Monmouthshire. Small brown moth. Frequents gullies and hollows on high moorland. Often found near bilberry.

The colour of this moth varies from tawny to reddish brown, with females being darker and smaller than the male.  A paler kidney mark on the forewing and two wavy cross lines help to characterise this species. May be found flying on sunny afternoons. Also flies after dark.

Size and Family

  • Family – Brocades, Quakers and allies (Hadenines)
  • Small Sized 

Conservation status

  • UK BAP: Not listed
  • Vulnerable (Red Data Book category 2)

Particular Caterpillar Food Plants

Bilberry and Heath Bedstraw.


  • Countries – Wales
  • Only found from one area in the hills of north-west Monmouthsire.  Single records also from Abergavenny and Herefordshire.


Favours gullies and hollows on high moorland.   

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