Small Purple Button Spatalistis bifasciana - None. I've only ever seen one of these and it wasn't local to here, but all the Norfolk records are from the last 20 years and most in the last 10 years, which suggests it's on the increase. Not many records in this vice county yet, but it's widespread enough in the east so it should turn up here sometime.
Green Oak Tortrix Tortrix viridana - 3 in the garden trap between 24th and 28th June 2019 but none here in 2020. This was my first blank year - between 1-4 is normal but I had an exceptional 23 in 2018. Elsewhere 6 at the meadows between 23rd June and 7th July 2019 (one in 2020), and 2 at Bintree Wood on the earlier date of 13th June.
Green Oak Tortrix Tortrix viridana, North Elmham Cathedral Meadows, 23rd June 2019
Green Oak Tortrix Tortrix viridana, North Elmham Cathedral Meadows, 7th July 2019
Yellow Oak Button Aleimma loeflingiana - 7 in the garden trap between 24th June and 19th July 2019, about an average showing but just a single one here in 2020, on 23rd June. Also 4 at the meadows in 2019 only.
Yellow Oak Button Aleimma loeflingiana, North Elmham, 23rd June 2020
White-triangle Button Acleris holmiana - None. These were my first blank years here for this distinctive and attractive moth - in previous years I've recorded 1-6 in the garden.
Maple Button Acleris forsskaleana - At least 20 in the garden (not counted every night) between 19th July and 23rd August 2019 and 20 again between 17th July and 22nd August 2020. These are slightly above-average totals. Elsewhere recorded next door and at the meadows.
Maple Button Aleimma forsskaleana, North Elmham, 7th August 2020
Yellow Rose Button Acleris bergmanniana - None. I am yet to find this species but given the spread of records in Norfolk it must surely only be a matter of time before I do.
Strawberry Tortrix Acleris comariana - None. I've only had one confirmed record of this species, at home, in 2017.
Dark-triangle Button Acleris laterana - just 4 in my garden trap between 15th August and 24th September 2019. I've had more than that in a night before and average 16 per year, so this was an exceptionally poor total, but 2020 was only slightly better with 6 between 9th and 19th August. Only one elsewhere, at Row Heath (West Runton).
male Dark-triangle Button Acleris laterana, North Elmham, 15th August 2019
male Dark-triangle Button Acleris laterana, North Elmham, 27th August 2019
female Dark-triangle Button Acleris laterana, Row Heath (West Runton), 31st August 2019
female Dark-triangle Button Acleris laterana, North Elmham, 20th September 2019
male Dark-triangle Button Acleris laterana, North Elmham, 24th September 2019
male Dark-triangle Button Acleris laterana, North Elmham, 9th August 2020
female Dark-triangle Button Acleris laterana, North Elmham, 14th August 2020
male Dark-triangle Button Acleris laterana, North Elmham, 15th August 2020
Ashy Button Acleris sparsana - 3 at home between 30th September and 7th October 2019, my equal-worst year (double this on average) and a healthier 7 between 11th September and 9th November 2020. Also one at the meadows and 3 in Cornwall.
Ashy Button Acleris sparsana, North Elmham, 11th September 2020
Ashy Button Acleris sparsana, North Elmham Cathedral Meadows, 8th November 2020
Rhomboid Tortrix Acleris rhombana - 5 here between 30th August and 18th October 2019 and 5 again between 16th August and 20th October 2020, typical showings for this species.
Rhomboid Tortrix Acleris rhombana, North Elmham, 20th October 2020
Notch-wing Button Acleris emargana - one in the garden trap on 11th September 2019. This species is nearly annual here with up to 3 a year but none in 2020.
Viburnum Button Acleris schalleriana - A total of 8 here in 2019, 5 of the summer generation between 23rd June and 17th July and 3 in the autumn (hibernating) generation between 3rd November and 19th December. One of the latter generation appeared on 10th March 2020 and then the summer season kicked off with a record 3 on 24th June, followed by another 4 by 16th July. None in the autumn generation in 2020. This species is listed as rare and up until 2015 it seems that that was an accurate description. Numbers have surged in the last 5 years though, and it can hardly be described as rare any longer.
Separation of this species from the Acleris laterana/comariana complex is not always straightforward based on external features and although I had a pretty good idea what most of these would turn out to be I have had individuals which I would have passed off as laterana had I not dissected them to eliminate comariana. Equally I have had examples that I thought were going to be schalleriana but which proved to be laterana. I think it is possible to identify some without recourse to dissection but personally I think it wise to build up a good level of experience of gen detted individuals before being confident about this, and at the moment I'm still building up that experience (although there was one particularly clear individual that I let go with just a photo in 2020). Despite having caught 32 of these here now, I'm yet to record a single one anywhere else.
male Viburnum Button Acleris schalleriana, North Elmham, 23rd June 2019
male Viburnum Button Acleris schalleriana, North Elmham, 24th June 2019
male Viburnum Button Acleris schalleriana, North Elmham, 11th July 2019
male Viburnum Button Acleris schalleriana, North Elmham, 17th July 2019
male Viburnum Button Acleris schalleriana, North Elmham, 19th December 2019
male Viburnum Button Acleris schalleriana, North Elmham, 10th March 2020
male Viburnum Button Acleris schalleriana, North Elmham, 13th July 2020
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