Lancashire Moth Recording Report 2020
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Lancashire Moth Recording Report 2020 Justine Patton Stephen Palmer Butterfly Conservation Registered in England 2206468 Registered Charity 254937 John Girdley President Sir David Attenborough Richard Walker Head Office Manor Yard, East Lulworth, Wareham, Dorset BH20 5QP Kevin McCabe 01929 400209 0 Recording Summary in Lancashire 2020 In a change to the way we normally do things around here, a one-off stand-alone moth report has been produced for the first time. The restrictions brought about by the pandemic affected butterfly recording more so than we have seen with moth recording and so considering the amount of moth data that would need analysis if we were to wait another year to combine the two, it would make for an onerous task to say the least. Whilst on the theme of change, toward the end of 2020 we said farewell to the County Macro- moth Recorder (CMR) for Vice County 60 (VC60), Pete Marsh, who for several years had written the majority of the moth section of our annual Butterfly and Moth report. We would like to thank Pete for his considerable contribution to BC and the Annual Report for the last seven years. Despite being plunged into lockdown for the best part of the year, recorders were as active as ever. Many of the regulars in the County already collect data in their gardens throughout the year, but this year brought a new wave of enthusiasts eager to experience what nature had to offer on their own doorstep. Whilst garden moth recording took off, we saw a drop in field records and daytime observations, with overnight trapping at more remote field sites really taking a hit. However, a small number of people managed to get into the field when restrictions were eased. Daily exercise was taken advantage of and records of those species regularly encountered during daytime excursions were recorded, albeit in smaller numbers. In 2020, the CMR’s of Lancashire received and verified no fewer than 68,873 records from 236 recorders, bringing the total number of records held in the County database to over 1.63 million. 140,166 individual moths of 887 species were recorded in VC59 (South Lancashire) and 75,656 moths of 768 species were recorded in VC60 (West Lancashire). Four species were new to Lancashire, all from VC59 and three new species were added to the respective VC lists. This is a fantastic effort given the difficulties 2020 brought, so thank you for all of your contributions. With so many species to be found throughout the County, it is difficult to share them all and then choose which ones are mentioned. So, a selective species account from across the County of species not mentioned elsewhere in the report will be given month-by-month. 1 Macro-moth Highlights January The mothing year kicked off with the usual suspects of Pale Brindled Beauty from Yealand (01/01 - B Hancock - BH), Mottled Umber in Flixton (02/01 - K McCabe – KM), Early Moth in Great Eccleston (24/01 – M Wilby - MW) and good numbers of Spring Usher (31) as per usual from Millhouses (24/01 – P Marsh – PM). A couple of milder spells encouraged species such as Satellite (21/01 – R Moyes - RM), Chestnut (22/01 – J Patton – JP) and Herald (25/01 – R Banks – RB) out of hibernation before the end of the month. February What better way to start the month than opening a trap to find Oak Beauty (01/02 – J Girdley – JG). The majority of the meagre pickings came from the South of the region in the form of Dotted border (02/02 – S Roberts - SR) at Heaton Moor and an eager Common quaker in Great Sankey (02/02 – A Riley - AR). Activity picked up a little in the north towards the end of the month when March Moth (14/02 – BH) and Mottled Grey (25/02 – JP) turned up in the Arnside and Silverdale AONB. The rest was much the same as the previous month. March The beginning of March brought milder conditions which heralded an explosion of Orthosia spp. which dominated catches for the whole month. A limited number of Yellow horned were seen, with records from Ainsdale on the 4th (RM) and on 24th in Silverdale (JP). Having a narrow flight period means it can be easily missed as colder temperatures can dissuade folk from turning the trap on. Grey Shoulder-knot is another that was encountered in small numbers, but one turned up in a Rishton garden (04/03 – D Bickerton – DB). Double-striped Pug at Anchorsholme (23/03 – S Eaves) and Brindled Pug in Heysham (24/03 – K Eaves – KE) were the first pug moths of the year to make an appearance. Lead-coloured Drab is a species with a close association with Populus tremula (Aspen) and very rarely wanders. It is an unusual garden moth, but it comes to light annually in Flixton (16/03 – KM). April After another wet Winter, the weather was perhaps unseasonably warm and dry throughout the month. Whilst traps invariably became busier, many were noting lower numbers than would be expected for the time of year. With the seemingly favourable mothing conditions came a flurry of early variety to those with urban or open country trap sites such V-pug in Lancaster (10/04 – J Mason - JM), Bright-line Brown-eye (04/04 – MW), Early Thorn at Halebank (02/04 – D Hunt) and a good record of Grey Birch at Lightfoot Green (10/04 – C & S Palmer – C&SP). The illusive Mullein came to light in a Formby garden on 03/03 and 14/03 (T Davenport - TD). This is a species more frequently encountered as a larva feeding gregariously on its namesake foodplant. Of the 21 records to come in of Shoulder Stripe, all came from VC60, with over 80% from the Silverdale area alone. Toward the end of the month Light Knot Grass came to light in Heysham (23/04 – KE) and a Puss Moth was found on the wall of a property at Pilling (24/04 – P Ellis - PE). It is not unusual for Puss Moth to rest some distance from a light source, highlighting the importance of a thorough search all around the trap site. May The weather continued to be warm and dry during the day which brought out the day-fliers. A small number of Speckled Yellow were observed during the day around its favoured 2 Limestone habitat, with a particularly late one being seen at Gait Barrows (26/06 – L Renshaw) and Brown Silver-line were being kicked up from amongst the Bracken in good numbers at Birk Bank (20/05 – JG). Small Yellow Underwing was spotted during the day at Haslam Park (07/05 – G Blackburn) and another at Fletcher Moss (22/05 – D Higginson-Tranter) . Only the second larval record of one of our rarer Orthosias, Blossom Underwing, came from Gaitbarrows (09/05 – JP), some 20 years after the first. The gregarious larval web was found on Oak. Nights on the other hand can be clear and cold, so the traps can be disappointing for the time of year. However, a couple of Marbled Coronet were recorded in Poulton-le-Fylde (24/05 - B Dyson) and Carnforth (29/05 - M Jackson - MJ) and the superb Alder Kitten came to gardens in the Preston area (08/05 – G Dixon and 25/05 – C&SP). Good numbers of Chocolate-tip records came in from VC59 with the majority of records coming in throughout the month. June A small number of Silver Hook were seen across the County, the first of which was observed during a visit to Ainsdale (01/06 – J Morris). Obscure Wainscot is found in similar habitat and numbers, so three records from Middleton Nature Reserve were notable (16/06, 23/06 and 30/06 – JM/PM). Some of the best counts of Double Dart in recent years came from the same superb brownfield site with two double-figure counts. The rather local and unpredictable Grey Scalloped Bar turned up in a number of garden traps including one in Briercliffe (01/06 – G Turner - GT) and an upland trap site at Greenbank (PM) on the same day. A single record of Archer’s Dart came in for VC60 from Fleetwood (23/06 – K Green), well away from its Southerly stronghold of the dune systems of St Anne’s and Formby. Another Bilberry Pug was netted whilst dusking at Docker Moor (24/06 – BH) along with a new County record of Satyr Pug (see new for County records section). Marbled White Spot continued its steady establishment within the county, proving that specialist species can also be winners in response to change in climate. Individuals were recorded in Flixton (10/06 – KM), Chorlton (12/06 – B Smart - BS), Woolton (16/06 – S McWilliam - SM) and Docker Moor (15/06 – SP/MJ). July As we reached the height of Summer we were met with particularly cool, wet weather for much of the month. But before it managed to take hold, moth-ers across the County headed out in search of Clearwings. This family are admired for their mimicry of various Hymenopterans. And just as they fool predators with their disguise, moth recorders find them equally difficult to observe, so turn to the synthetic pheromones developed to survey them. Two records of Six- belted Clearwing were the first in of the month (01/07 – P Brash) and only the second after it’s discovery just last year. On the same day the last record of Red-tipped Clearwing came from Ainsdale (P Kinsella). Reports of improved efficacy of the Lunar Hornet Moth pheromone lure was supported by country-wide successes, with records coming in from across Lancashire where suitable habitat occurs.