| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| 30+ | 07/04/2012 | Benlech anglesey north end of Benlech beach, stream coming down to the beach at the edge of sand/rocks |
looked like they had been washed up onto the highest level of the beach. Tides had been high and weather rough on preceding days | Aphrodita aculeata |