General comments:
Wild caught adults will normally require genitalia dissection to distinguish them from C. rufipennella and C. hemidactylella.

Records made prior to 1947 might refer to the next species (C. betulicola) as until that year it was unclear if these were separate species or not.

Hertfordshire Notes:
Local. The apparent restriction of this species to the south-east of the county is likely to be real as it has been searched for assiduously in other areas to no avail. Availability of native Alder is a contributing factor.

Middlesex Notes:
Local, but likely to be more distributed wherever the native Alder Alnus glutinosa grows. The records suggest that this species has become more frequently encountered in the past thirty years or so.

	Determination by Genitalia Examination Required

	Mine: Either the leaf or a good photograph required

Recorded in 21 (51%) of 41 10k Squares. First Recorded in 1890. Last Recorded in 2023. Additional Stats

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