General Remarks:
Widespread, though fairly local. It may well be present wherever mature fruit trees grow, but it is probably not ubiquitous. Most older lists for the county include this species, suggesting that it has always been widespread and common in spite of concerted efforts to eradicate it from orchards and larger gardens.

Hertfordshire Notes: It comes readily to light, but almost all records from traps relate to males and the flight period noted above is based on this sex almost exclusively. The larva feeds internally in the woody tissue of trees. Emmet (1991) states that stems and branches up to 10 centimetres diameter are used. The larval phase can extend over three calendar years, from August in the first to May in the third, but this may not always be the case.

Middlesex Notes: Widespread and common, though avoiding the densest urban areas where investigates usually show that potential host trees are absent.

Recorded in 36 (88%) of 41 10k Squares. First Recorded in 1887. Last Recorded in 2023. Additional Stats

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