Morley's Final Catalogue: Extremely local, probably becoming extinct. Kesgrave and Filxton before 1890. A few beaten from yew in April 1894-5, in Bentley pine-wood, where Hocking took larvae in the latter year (Mly). Few later records; and, though it used to occur about Brandon, Mildenhall and Tuddenham (sec. Bloomfield), the Breck seems to harbour it no longer. Singly at Brightwell Woods in April 1904 and later at Waldringfield (Wlr); still plentiful in late April at Belton and Fritton, where larvae are common on the Warren in June (Wiltshire).
Recent Suffolk Status: Common, mainly in the Sandlings and in the Breck but also scattered colonies elsewhere.
Life history: Single-brooded. Adults have been noted from February right through until July in Suffolk, although they are mainly seen March-May. Normally comes to light only in small numbers.
Identification: Unmistakeable. Amount of reddish colouration can vary.
