An ultra-rare immigrant moth, the Accent Gem Ctenoplusia accentifera, has been spotted in Devon. This African species has only been recorded in Britain once before , way back in 1969 in Kent, so the discovery is very significant.
Devon Moth Group member, Dave Wall, found the moth in his garden moth trap in Exmouth on 29 October, during a major period of moth immigration to the southern coast of Britain that accompanied very mild weather and southerly winds. In fact, in the same moth trap, Dave also caught two Palpita vitrealis and three Vestal Rhodometra sacraria, quite exciting immigrant moths themselves.
This is the second extremely rare migrant moth caught in Devon in recent months. Back in July, Group members found a Ringed Border Stegania cararia, which was also a species never seen before in Devon and was only the third known British record.
Autumn can be a time of great excitement for Devon’s moth recorders as moth migrate northwards from the continent and arrive on our shores. In some years, little arrives but in others (most recently 2013 and 2011) an amazing variety of common, scarce and downright rare immigrant moths come in, to the delight of wildlife enthusiasts.
So far this year, most of the migrant moth excitement has been among moth recorders on the east coast of Britain. However, the South West hasn’t missed out entirely. Perhaps the pick of the crop so far have been two records of the large and dramatic Clifden Nonpareil (Catocala fraxini) – a moth that would feature on most moth recorders’ bucket lists. The first was caught by visiting moth expert Dave Grundy at Prawle Point on 27 August, while the second came to Mike Lockyear’s moth trap in Crediton on 17 September. Both are shown below. The species has also been reported from other locations around the English coast from Dorset to Northumberland in the past few weeks.
A range of other immigrants have been seen in Devon in recent weeks including the massive Convolvulous Hawk-moth, Delicate, Vestal, Scarce Bordered Straw and Ostrinia nubilalis.
With mild conditions forecast for the week ahead, it would be well worth looking out for rare visitors to our county.
Clifden Nonpareil (Dave Grundy)
Clifden Nonpareil (Mike Lockyear)
An extremely rare migrant moth, the Ringed Border, was discovered by Devon Moth Group members at our field meeting at Parke near Bovey Tracey on Friday night. This is the first time the moth has ever been seen in Devon and possibly only the third ever sighting for mainland Britain.
Although there have been a number of common immigrant moths arriving into Devon during the recent spell of hot weather, the stunned moth recorders, led by former Devon County Moth Recorder Roy McCormick and National Trust ranger Fred Hutt, could hardly believe their eyes when the moth was spotted at the light traps just after midnight. The only previous British sightings were of one in Somerset in 2009 and one in Hampshire in 2010. The amazing find just proves that you never know what you’ll find in your moth trap!
Ringed Border caught at Parke on 25 July 2014
With few moths on the wing in winter, this is a time to look back on the past year and, most importantly, for sorting out all those moth records. Moth recording is a key activity for Devon Moth Group and something that anyone can help with. The rationale is simple – a knowledge of which moths live where in Devon and how they are faring is the foundation upon which all efforts to conserve and protect these fascinating creatures are built. Please submit all your 2013 moth records (by spreadsheet) to the County Recorder, Barry Henwood, as soon as possible. If you don’t have a computer, we can still accept paper records, thanks to the sterling work being done by Assistant County Recorder Geoff Wisdom. Records are always welcome at any time of year, but if you want your records to appear in the 2013 Devon Moth Group Annual Report then please ensure that you’ve forwarded them to Barry by Sunday 19th January 2014. More information on how to submit your moth records
2013 proved to be a year ‘of two halves’ to use the footballing cliche. The coldest spring for 50 years, following on from the dreadful weather of 2012, severely depressed moth numbers during the first half of the year. However, all changed with the onset of the heatwave in July and moth populations rocketed, leading to some memorable nights’ trapping. Autumn was exciting too, with a huge influx of migrant moths from warmer parts of Europe. These included enormous numbers of Vestals (see image below), as well as much rarer species such as the Crimson Speckled and Clifden Nonpareil. Let’s hope that 2014 continues in the same vein!
Vestal (Chris Manley)
Autumn is typically an exciting time of the year for those interested in moths. Although the great diversity of British moths that are around during the warm summer months is starting to fade, it is the peak time of year for moth immigration.
In good autumns, such as in 2011, huge numbers of moths can arrive in Britain from southern Europe or even North Africa, borne in on warm southerly winds. While some of these are common and familiar migrants such as the Silver Y, Dark Swordgrass and Humming-bird Hawk-moth, other much rarer and more exotic-looking species can arrive, such as the sinister Death’s Head Hawk-moth, the stunning Crimson Speckled, Dewick’s Plusia and Purple Marbled.
The number of exicitng immigrant moths has started to rise in Devon and neighbouring counties in recent weeks with, for example, sightings of the very rare Rosy Underwing in Dorset and Cornwall. This species had only been recorded 10 times ever in Britain prior to this year, but there have already been three sightings in recent weeks (two in south Dorset and one on the Lizard, Cornwall).
I’ve not been lucky enough to see anything so rare (although with moth recording one always lives in hope) but have seen several immigrant Vestal moths in my garden in the last two weeks (one shown below). It’s well worth putting your moth trap out at night between the showers and also keeping your eyes peeled during the day as species such as Convolvulus Hawk-moth and Crimson Speckled are often spotted by day.
Vestal (Richard Fox)
Happy New Year! And what a start it has been – dry days and mild nights have made for favourable conditions for moths, butterflies and other wildlife. Let’s hope the weather has made a New Year’s resolution and the seemingly endless rain that blighted 2012 is at an end.
Moths keep going right through the winter here in Devon and after Winter Moths and December Moths last month, January is bringing some new species out. Brindled Beauties, Spring Ushers and Dark Chestnuts are on the wing, in small numbers at least, and the first Epiphyas postvittana of the year have already started to appear in garden traps.
What’s more, with warm air coming from the south for the past few days (and nights!), there are migrant moths arriving. Seems amazing for the beginning of January, but immigrants such as Dark Swordgrass, Nomophila noctuella and Painted Lady butterfly have been recorded in southern England in recent days.
Well worth dusting off the moth-trap if you’d put it away for the winter, and please let us know about any recent moth sightings in the comments field below.