About half a dozen of these were attracted to our garden room lights last night. They are smaller than the normal caddisflies we usually get.
No interactions present.
Genus Hydropsyche whose larvae spin capturing nets in flowing water. Examination of genitalia required for identification of these adults.
Very common at light and fly some distance from their breeding site.
Ian Wallace, UK Trichoptera Recording Scheme
Lat/Lng: 54.6398, -3.4036
OS grid ref: NY095280