Thursday 10 December 2020

A new moth trap

 

I have not been running the moth trap recently because of the cold and damp, though it may play a part in our Christmas illuminations. We tend to organise these later than most people these days, after childhoods when dressing the tree was an eagerly-awaited part of Christmas Eve, though it then stayed up for the full twelve days of celebration.

On a doorstep visit to the grandchildren this week, however, my moth-minded granddaughter immediately asked me: "What moths are you getting, Grandpa." And lo and behold, last night her answer was delivered by our porch light. Satisfactorily, it was her seventh birthday and at the peak of the insects' arrival, there were seven as shown by the red arrows above.


The Winter Moth is not a showy species as you can see from these close-ups of the seven, but it is an extremely interesting one. It uses its own body mechanisms to generate enough warmth to fly on frosty nights and during the dead of Winter, it is really the only UK moth you will see out and about, with the occasional odd exception.

Moreover, the female is one of the country's flightless moths, which always seems a shame to someone like me, who wishes that humans could fly unaided, but is actually less demanding and more comfortable from the insects' point of view. Like bedbound inmates of care homes, they spend their lives in cosy niches of tree trunks, waiting to be visited by a male and then laying lots of eggs. The future of many of these is less enjoyable. Millions end up as food for tits which time their breeding to coincide with the moths'.


Here's an enlarged version of one of the moths, with flash above and showing its resting stance in the shadows from our porch lamp below. It is rather remarkable that such a slender, fragile insect can summon up the heat and energy to fly in the freeze. Studies have shown that it can take the moths half-an-hour to warm up enough to take off.  Once flying, their wing movements produce additional heat.


I cheered up a couple of them a few years ago and append them here again, as a seasonal treat.











Monday 30 November 2020

Lucky 13

A couple of much milder nights have shown that moths may only be around in limited numbers so far as species are concerned but within each species, the guest-list can still be healthy. Yesterday, for example, no fewer than 13 December Moths paid me a call, nine inside the light-trap and four on the wall of the house nearby.


Here they are in various poses, one of them displaying the fine 'TV aerial' antennae which are as much a feature of the species as its lovely fur coat. Usually moths unfold their antennae when I tickle or otherwise disturb them, but this chap was already on the qui vive.

Meanwhile, our porch light is acting as a minor moth trap, particularly where Winter Moths are concerned. Checking outside lights is always an interesting diversion which anyone can do, as Conehead notes in commenting on my last post.  A useful extra is when a window is involved, as you can photograph the moth from both sides (provided your windows are reasonably clean).


My last moths are a pair of Winters, this time on the wall along with the quartet of Decembers. 


Elsewhere in the natural world, our many squirrels are foraging energetically at the moment; and we used up our last nasturtium flowers by stuffing them with goats' cheese, anchovy essence and capers. Yum! 


Tuesday 24 November 2020

Brrr!

It's difficult to entice moths out when conditions are as chilly as those shown above. But there are still some hardy souls flying about. December moths continue to arrive in good numbers and it was great to get the fine Mottled Umber, below, in spite of the frost.

But things are definitely winding down now. Probably just Winter moths to come. Talking of which, I think that we have one of those here, below, seen from above and below through the transparent cowl.


I also had this speck of a visitor in spite of the chill, an Epiphyas postvittana or Light Brown Apple micro-moth. And lastly a very worn and battered macro whose ID is probably beyond salvaging.


Saturday 21 November 2020

Every which way

The Red-green Carpets continue to come to the trap in good numbers and this morning they presented themselves from every angle. At the top is one with its body curved to hoick up the tail - a typical resting position for many smaller UK moths. Whether it was trying to attract a mate on a damp and chilly night, I doubt. But moths seem happy to couple at uncomfortably low temperatures.

By contrast, the RGC in the second picture is pretending to be a butterfly, a stance which it refused to alter in spite of being buffeted by lively winds this morning. And finally, below, here is the moth from above; small but full of variety in both pattern and colour. 


The Umbers, Mottled and Scare also continue on the wing. Today's example is a Scarce, with the distinctive dark markings on its wings:


And finally, the well wrapped-up December moths are the current winners in terms of numbers; another five of them shared the eggboxes this morning:

Wednesday 18 November 2020

A mild mixture

The damp weather is a bit of a frustration at the moment but the compensation, on nights which stay dry as happened yesterday, is that the temperatures are pleasantly mild. Moth numbers are reasonably good as a result, and the variety is welcome at a time of year when fewer species are usually about.

This morning saw three Red-green Carpets, for example, two on the house wall near the trap and one in an eggbox which hoisted its wings into 'butterfly mode' when I clumsily knocked the box while fishing out another one. It then transferred to the bulbholder and was still there an hour later, now with its wings in the usual, flatback position.


There were also two examples of that lovely moth, the raked-wing Angle Shades which flies all year round although usually in smaller numbers over the winter. And the trap's transparent cowl hosted a nice, fresh Mottled Umber with its russety Autumnal colouring.


A December moth in the eggboxes and a Silver Y down at the bottom of the wall near the grass rounded things off nicely; a good collection for one night so late in the year.



Saturday 14 November 2020

Tufty - or Lizard

Do you remember Tufty the red squirrel which fronted the various campaigns of the Royal Society for the Prevention of Accidents? Here is his moth equivalent, a scrap of a micro called Acleris cristana which looks pretty ordinary until you see it sideways on.

From above it has the cappucino colouring familiar from many moths, micro and macro, with a nice pair of wingtip mini-eyes at the bottom and a couple of prominent blotches in the middle of its wings. But as the photograph below reveals, these are not mere blotches but prominent tufts of raised scales, a remarkable feature of this species.  Although not in common use, the moth's English name of Tufty Button is very appropriate and should be encouraged.


Its origin and purpose (if any) does not appear to be known to entomologists; it would be excellent if someone took the subject in hand, including the effects (also if any) on the tiny creature's aerodynamics. Do the tufts hinge down like aircraft wing flaps or do they remain sticking up in flight? There's a PhD subject for someone!

Another feature of this moth is the curious appearance of some of the 137 different forms which have been discovered so far; They look as if a tiny lizard is wriggling down their back. Mine was not one of those but I was visited by one in December 2015. Here it is, along with some similar examples from Richard Lewington's paintings in the Micro-moth Bible.




For the rest, the light trap is still attracting plenty of furry December moths and Sprawlers, including one of the latter on the nearby house wall, shown here:


My final photos show that all-the-year-round immigrant (and possibly now resident), the Silver Y, a Red-line Quaker and a Red-green Carpet on the transparent cowl, from above and below.




Wednesday 11 November 2020

Scarcely scarce



Another new visitor for the year, and I would guess the last apart from the Winter moth which I can expect over Christmas, although I haven't recorded any here since last November. That was largely because I switched the trap on seldom, however, and didn't use it all in December last year.  

This arrival is the Scarce Umber which has long since ceased to be scarce. It's almost as common as muck between October and December especially in  southern counties.  That said, this is my first this year.


It had good company in the trap on a mild night, including the two Feathered Thorns above, a handsome December moth which its richly-chequered hindwing fringe and a November or Pale November on the outside of the trap. both below. 



Plus a Turnip, a hardy regular at this time of the year, below, and the very common but appealing little micro Epyphias postvittana or Light Brown Apple Moth.



Tuesday 10 November 2020

Cuddly latecomer



One of the last moths in the usual calendar has called for two nights running in spite of misty moisty weather. The December Moth is a fitting companion for the Sprawler as it has the same excellent taste in furry collars and handsome wing patterning.

it is one of the Eggar moths who come early on in the Moth Bible because of their relatively primitive structure which includes the inability to feed. They tend to huddle close but one of my arrivals had dislocated its hindwing, which operates on an interesting coupling which is one of the indicators when seeking the difference between butterflies and moths. These can be relocated but I am too clumsy and was worried that I might do further damage. Let's hope the problem sorted itself out.

It did give me, and now you, a glimpse of the usually-hidden wing which follows the dark and cream pattern of the moth overall. The combination reminds me of the classy old Pullman trains which used to operate in the UK and can now be examined in various museums.


I am shining the light occasionally still, because other enthusiasts round here, especially in Buckinghamshire, are reporting very interesting visitors to their traps. I doubt that I will be so luckly this far further North, but the December moths' companions, though few, have been attractive: Green-brindled Crescent, Sprawler and that gutsy all-the-year-rounder, the Silver Y.