Norfolk status
Rare.
Hard to distinguish between other related species.
The only way to be certain of the ID of larval cases is to examine the exuviae head-plate under a microscope.

Only the parthenogenetic (does not require the male to reproduce) wingless female of Dahlica triquetrella has been recorded in Britain.

Listed in 1873-4 at Brandon said to be 'abundant on old palings - everything reared apterous females' (C. Barrett)

Two cases of Dahlica triquetrella were found at Breydon saltmarsh in 2012.(J.R.Langmaid, 06/06/12)

Laval case found at Snettisham in February 2022, with wingless parthenogenetic female emerging and laying eggs inside the larval case in March. (J. Stroud, 11/02/22)

Verification Grade Comment: Parthenogenetic

	Retained Specimen / Photograph will be Required.

	Case: A good quality photo or specimen of the case and plant/pabulum and the bred moth is required.

Recorded in 8 (11%) of 74 10k Squares. First Recorded in 1874. Last Recorded in 2025. Additional Stats

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