Appendix B: (Geometridae / Ennominae)
B0071 [B&F: 1916] Clouded August Thorn (Ennomos quercaria) (Hübner, [1813])


Notes: Occurrence in the British Isles unconfirmed, this southern European species is included on the British list on the basis of a a single 19th Century record. One was reported in Essex in 1992. Wingspan 38-42 mm. September Thorn E. erosaria is similar, but paler, with antemedian fasciae roughly parallel. Larva feeds on Oak, no evidence of breeding in the UK.

Flightime guide

Distribution Map

Historical distribution at tetrad resolution
Click for density map

Record Density

As above but the larger the symbol, the greater the number of records
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