Peripsocus didymus
This was initially identified using the online key but then checked against New. The latter used additional characters of wing length (mine was 2.7mm so a bit on the short side) and clunial comb. I wasn't initially sure which structure this was as under the dissecting microscope the teeth looked like short thick setae, but under the compound microscope I could see they were teeth.
, North Elmham, 13-Jun-25 (A) (1).jpg)
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, North Elmham, 13-Jun-25 (A) (3).jpg)
, North Elmham, 13-Jun-25 (A) (4).jpg)
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male Peripsocus didymus showing left wings, right forewing, phallosome (2 views) and clunial comb, North Elmham (Norfolk, UK), 13th June 2025