Thursday, 19 October 2017

Vestal visitor

We had a foggy journey back from London late last night and the garden was misty and very still when I put the trap out a little before midnight. I was clearly sleepy, too, as this morning I found that the transparent cowl had partially slipped off. Conceivably, a fox or badger might have nudged it but it would be a very brave animal that ventured so close to the dazzling mercury vapour light.

My last Vestal was
floating in the pool
on our holiday in
Portugal last month
- alive and duly rescued
Luckily, the extra gap hadn't enticed a couple of interesting arrivals to escape: my first two pictures show an immigrant Vestal, a species from the Mediterranean which has been arriving in unusual numbers in this part of the UK on the tailcoats of Hurricane Ophelia, as mentioned in recent posts. You can tell that it is an immigrant because of the yellowy shade which is generally found in Vestals from warmer climes which have spent less time in their chrysalises.  The ones which breed in Northern continental Europe and here (from eggs laid by immigrants earlier in the Summer) are paler and closer to Hollywood's ideal of the clothing worn by ancient Rome's Vestal Virgins from whom this dainty insect takes its name. My composite picture below contrasts this morning's arrival - on the left - with one which came in September 2013 and an NBC picture of Janet Stephens in a Hollywood Vestal role.

It was also good to welcome a Sprawler, that tweedy regular in mid-Autumn, and to see another Large Wainscot - all shown below. On the smaller side, I think the Plume moth with its distinctive T shape is probably just a Common Plume, Emmelina monodactyla, but if anyone knows different, please shout.

Lastly, it's always instructive to note the great variation you find within a moth species, as with these two November Moths below:

And very lastly, because I often berate brown and grey moths for their similarity and lack of pzazz, here is a fresh red-line Quaker looking actually rather fine:

Wednesday, 18 October 2017

Great skies; but where are the moths?

As much discussed in the UK, we enjoyed delightfully spooky weather yesterday, variously described as a Red Sun and Marmalade Skies. The latter was closer to accuracy so far as we were concerned; until early afternoon, we were bathed in a weird, orangey glow caused by sand swirled up from north Africa by mighty Hurricane Ophelia, along with ash from fires in Portugal and Spain.

When we saw the sun, it resembled the photo from the BBC's website on the left, but most of the time, the other pic from the BBC on the right gives a better and more marmaladey impression. Along with many others, I was optimistic that these conditions would be reflected by curious, long-distance arrivals in the moth trap. But that was not the case. 

I blame the wind which got up in the evening and the temperature, which fell. Although I saw a couple of moths fluttering close to the lamp before I turned in, the eggboxes were very sparsely populated this morning. Indeed, the only moth which I thought worth showing you was this Angle Shades, a long-standing favourite which hasn't been for a while. Perhaps its stylishly raked wings allowed it to risk the 40mph gusts which lasted 'til midnight.

My other moth curiosity, below, was on board a friend's boat which took Penny and myself for a memorable saunter along the Thames, including a call at the wonderful Egyptian House in Moulsford, left. These are the tragic remains of that lovely and aptly-named species, the Bordered Beauty. I suppose that they show the efficiency of spiders at filleting out a moth's juicy, edible bits.

Tuesday, 17 October 2017

Large means large

I am running a day behind these days, with daylight coming too slowly and too late for me to scribble out the blog post before life's other demands kick in. Today's handsome whopper therefore visited me on Sunday night and provided a nice surprise yesterday morning.

It's a Large Wainscot, suitable named as you can see when you compare it with the Common Wainscot which also stayed the night. Here they are below, waking up slowly in the company if a Merveille du Jour, that star of the UK's Autumn moths.

The Large Wainscot is not that common round here but it has come calling for the last three years. It likes watery spots and we have both the Oxford Canal and the River Cherwell nearby. A curiosity of its behaviour is that it flies twice a night, briefly at dusk and then for a longer spell later on. Superficially it resembles the White Speck which filled me with such joy yesterday, and inded my first thought on seeing the WS was that it was an LW.

I rhapsodised about the Green-brindled Crescent two days ago. Its appearance is usually followed by that if its very close relation, the form cappucino, and this has duly happened again this year. Here it is, above, a darker and less blingy version, with the brown body and creamy top associated with the coffee (and the Capucin monks after whom both drink and moth are named). The standard, glisteningly green form is on the left.

A distinctive micro next. This is is Hypsopygia glaucinalis, a sort of big brother to Hypsopygia costalis or the Gold Triangle, the pretty scrap of purple and gold which came the other day - and again in this bunch of Sunday nighters - see right. Glaucinalis is duller but bigger, easily the size of many UK macro moths. It's also useful. Unlike the Boxworm and White Speck (or Armyworm) which are serious crop and plant pests, its caterpillars feed on decaying matter and are useful scavengers. They have admittedly been found munching on birds' nests, but not in sufficient numbers to do serious damage. And it's hard to imagine them being foolhardy enough to dine on an occupied nest, whose inhabitants would surely seize the chance to dine on them,

When I first went to look at the trap, a small moth was all of a flutter inside the transparent collar, whirling around distractedly before finally settling on the battered plastic. Here's the view I had below:

What was it? I lifted the bulb and its holder out carefully and upturned the collar gingerly. The moth stayed put and posed for a picture, resting on my beautifully pyjama-glad knees (the jams looking a bit grubby because the collar is between them and the moth).  It's a Straw Dot, one of the macros smaller than Hypsopygia glaucinalis, which is enjoying a good long season this year.

Finally, a series of tortrix micros: a fine, fresh example of the Garden Rose Tortrix, Acleris variegana, which last arrived two nights ago in the form of a very battered specimen; the puritanically grey Acleris sparsana and the Light Brown Apple Moth, Epyphias postvittana, with a jauntily tail-cocking Red-green Carpet looking on.

Monday, 16 October 2017


It's childish I know - or perhaps we could settle more kindly on 'child-like', but I still get a kick out of finding unusual moths in the trap. This is a pretty infrequent experience and now that we have been here for five summers, it's a surprise to find anything which hasn't called at least once before. But that was my experience yesterday morning, after the last of National Moth Nights' three nights.

The visitor was a White-speck, an immigrant species which makes landfall in the UK every autumn but only seldom this far inland. Martin Townsend, the co-author of the Moth Bible and an unfailingly helpful mainstay of the Upper Thames Moths blog, says that there have only been a few records for Oxfordshire. Now mine joins them, huzza!

It nearly didn't, firstly because I turned the moth's eggbox over clumsily after examining the other side and nearly dislodged the un-noticed White-speck in the process. And secondly, because I initially took it to be one of the less common wainscots. Luckily, there was something about its shape and the beady, eponymous white speck, which kept me searching through the Bible.

White-speck Land
- the Isles of Scilly
It isn't a specially exciting moth to look at, as you can see, but it has a sleek, streamlined appearance which makes for a purposeful impression.  In the United States where it is common and a major agricultural pest, it is known as the Armyworm because its voracious caterpillars can assemble in large numbers and march on crops. The Americans' usage of 'worm' for caterpillar, by the by, is an example of how their version of English has kept alive old forms which we have discarded; 'worm' is one and 'gotten' another. Worth remembering, when we criticise them for their many novelties.

Why a White-speck now? It is one of an army of immigrant moths swept north from the Continent on warm winds caught up in the train of the remains of Hurricane Ophelia. White-specks usually head for Devon and Cornwall and have even established breeding colonies in the far south west, including the Isles of Scilly. On your guard, daffodil-growers!

This morning's forecast for Hurricane Ophelia from the BBC's website. You'll have to imagine the moths getting hauled north to the right of the orange track

A most excellent bug - the
trap also had a wasp, an earwig,
Several Daddy-long-legs, lace
wings and woodlice. Update: 
Alex in Comments has kindly 
been Googling and suggests
 that this is a Hawthorn 
Shieldbug and I think he
is right. Many thanks. The
darkness of its purple may
suggest that it is getting
ready to hibernate.
Back on National Moth Night, I was visited by another attractive immigrant and one which has settled here bigtime, Blair's Shoulder-knot, above, one of three UK moths which carry the name of a retired entomologist from the Natural History Museum, Dr Blair, who lived on the Isle of Wight where many species new to the UK first make landfall as the Shoulder-knot did in 1951. It shares the sleekness of the White-speck but has a rather more handsome, Tweedy appearance. It also has a look of the Pinion moths and Dr Blair modestly suggested initially that it should be given the agreeable name of Stone Pinion. But others disagreed and wanted him  honoured for his tireless discoveries and so the moth joined the much rarer Blair's Mocha and Blair's Wainscot.

Red-line Quaker

And its Yellow-line cousin. Update: Paul in Comments suggests that this is a Brick and I am sure that he is right. Many thanks again P.

Here are the other arrivals on Saturday/Sunday night:

9 Lunar Underwings
8 Beaded Chestnuts
7 Setaceous Hebrew Characters
4 Large Yellow Underwings
3 Black Rustics
2 Straw Dots
And one each of Sallow, Barred Sallow, Square-spot Rustic, Autumnal Rustic, Centre-barred Sallow, Lesser Yellow Underwing, Red-line Quaker, Yellow-line Quaker and the micro Brown Plume, Stenoptilia pterodactyla, below.

Sunday, 15 October 2017

Recording chores

Top Moth from National Moth Night for me: an iridescent Green-brindled Crescent

Common Marbled Carpet
I have belatedly caught up with the fact that the last three nights have constituted this year's National Moth Night, a fairly recent way of harnessing amateurs' enthusiasm to get a clearer picture of the UK's growing record of species and numbers. This is an entirely excellent idea, especially in providing solid data to counter the mercurial ways of the media (in which I used to work for many years) and the resulting, exaggerated highs and lows in reports of moth gluts or suggestions that species are dying out altogether.

Another favourite: Ruby Tiger with a long-snouted caddisfly
Snout and another caddis
So I joined in on Friday night, having missed the previous evening because of a visit elsewhere. I am not a sedulous recorder and find the painstaking listing of species and numbers in the trap much more difficult than I should. Since childhood, I have preferred to concentrate on the 'treasures' in any list of facts or collection of objects. Indeed, cherry-picking the curiosities of life is probably the main reason why I decided to make my living as a journalist.

And another; the good old Burnished Brass (f.juncta)

Here by contrast are the figures from Friday's trap, which I must also remember to send to the organisers of National Moth Night - and do let me encourage you to do likewise. I will try to be more on the ball next year and flag the event up in advance.

New for the year: Autumnal Moth

Red-green Carpet
35 Setaceous Hebrew Characters 
31 Black Rustics
10 Large Yellow Underwing
8 Lunar Underwing
5 Red-line Quaker
4 Square-dot Rustic
4 Lesser Yellow Underwing
4 Sallow
3 Green-brindled Crescent
2 Autumnal Moths
2 Centre-barred Sallows
2 Beaded Chestnut
2 Straw Dot
One each of Red-green Carpet, Common Marbled Carpet, Burnished Brass form juncta, Rosy Rustic, Ruby Tiger, Snout and Silver Y.

Silver Y, a seasonal immigrant in great numbers

There were also three 'carpety' moths which I have yet to identify - probably faded Common or Dark Marbled Carpets but I wonder if one of them is a Streamer; and two 'grey-y' gents, or ladies, as my granddaughter would no doubt call them, whose ID I also need to track down. Here they are:

These are the two 'grey-y' ones. I think they are two more Lunar Underwings:

The micros consisted of the dainty Gold Triangle, Hypstopygia costalis, pictured left, and the two tortrixy types shown below, one of them very battered. I think the top one is a Dark Fruit Tree Tortrix, Pandemis heparana, and the knocked-about one a Garden Rose Tortrix, Acleris varienaga. I should be sure, as both are common and come here often, but there we go.