Morley’s Final Catalogue: Found at Hemley in 1902 (Wir; Trans, i, 36). One at Fritton in 1935 (Gd).
Recent Status: Scarce in Suffolk.
Life Style: A single brooded species that can be found during May and June. Very little is otherwise known about the species. The larva is thought to feed in rotting wood on a single piece of presumptive evidence.
Identification: An instantly recognised species from the triangular shape at rest and three whitish spots on a dark wing.
Recorded in 6 (10%) of 58 10k Squares. First Recorded in 1902. Last Recorded in 2020. Additional Stats