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Tag Archives: longhorn beetle

Midsummer Woods

05 Sunday Jul 2020

Posted by theresagreen in birds of Wales, Butterflies of Wales, Insects, Local Nature Reserves, Nature of Wales, nature of woodlands, Walking, Wildflowers of Wales, woodland

≈ 12 Comments

Tags

Bryn Euryn Nature Reserve, buteo buteo, common buzzard, common lizard, Early Bumblebee, Great Pied hoverfly, longhorn beetle, pollinating insects, Red Admiral, rutpela maculata, slow walking, speckled wood, strangalia maculata, tree bumblebee, Viviparous lizard, yellow and black beetle

It had been a good while since I’d spent the best part of a day meandering around the whole rich patchwork of varying habitats that make up my local nature reserve of Bryn Euryn, so a sunny morning that was forecast to stay that way into the afternoon offered the perfect opportunity to spend a day outdoors.

09:59 – Woodland Path

Once outside I realised it wasn’t quite as warm as I’d thought it was going to be, but the air felt fresh, if slightly humid. The copious rainfalls of previous days have done wonders; plants that had looked sad and wilted a few days ago were perked upright and the leaves of the trees washed of dust and good as new. A Speckled Wood butterfly on ivy and the chirpy calls of foraging Blue Tits greeted me at the beginning of the path, which has also benefitted from the dust-settling cleansing rain.

The specialist woodland wildflowers of the early Spring have long-since finished flowering now and are directing their energies into producing seeds. There are a few later-flowering plants that can cope with the reduced sunlight though, including the beautiful Honeysuckle, one of my lifetime favourite plants whose fresh perfume I would happily fill my home with, if only someone could capture it perfectly.

An arch of Honeysuckle

It’s been a good year for this  fragrant twining-climbing plant which has given me cause to make even more frequent stops on my walks; the scent of it in the air, particularly in the cooler mornings and evenings is as much a highlight as anything I might see or hear. It has maybe passed its peak of flowering now, but there’ll be occasional blooms to enjoy for a while to come.

Also happy in partial shade and flowering now are Navelwort, which is usually more easily recognised by its distinctive round fleshy leaves and Wood Sage, which despite its name is not confined to woodland paths; it’s a tough plant that is equally as happy growing out on exposed heaths and coastal cliffs.

Wood Sage-Teucrium scorodonia
Wood Sage-Teucrium scorodonia
Navelwort-Umbilicus rupestris
Navelwort-Umbilicus rupestris

10:12 Covered with white blossoms and well-refreshed the bramble patch at the top of the first rise of the path, was my first stop this morning. Gradually being lit and warmed by sunshine, it was already busy with a variety of insects.

Honeybee on bramble blossom

A Blackbird was singing from a tree somewhere close by, his melodic, relaxed song lending an element of calm to the scene of frenetic insect activity. There were bumblebees: Tree Bumbles  definitely the most numerous, some looking fresh, their heads and thoraxes bright deep tawny brown others faded to a pale blonde, perhaps bleached out by the sun. A few smaller Buff-tailed workers are busy between them and there are a small number of Honeybees, some of the first I’ve seen this year.

Faded Tree Bumblebee
Faded Tree Bumblebee
Fresh Tree Bumblebee
Fresh Tree Bumblebee

Butterflies joined the party, two Speckled Woods, which must have been a male and a female as they behaved amicably together, feeding almost side by side until disappearing together to the privacy of the leaves of an overhanging Sycamore. A Large White scooted over but didn’t stop, but a Red Admiral, missing a piece from a hind wing stayed for the whole length of time I was there, only moving short distances between flowers.

Speckled Wood
Speckled Wood
Red Admiral
Red Admiral

Most interesting of all were the big yellow-and-black beetles, that for some reason don’t seem to have a standardised common name, so are  known to me as Strangalia maculata, (which is apparently no longer correct as they’ve changed it to Rutpela maculata!). In the midst of the tangle of bramble, honeysuckle and ivy stands the remains of a tree, which was snapped in a storm a few winters ago. I wonder if it’s within its damaged fabric that they spent their larval stage and from which they have emerged. For a while now I’ve seen them here each time I’ve passed by, several at a time. Until now all of my past and more recent sightings of these lovely beetles have been of them calmly feeding on flowers, so it was interesting to see them very active this morning, flying rather clumsily from flower to flower, not lingering for long on any.

Yellow and black beetle- Rutpela maculata
Yellow and black beetle- Rutpela maculata
Yellow and black beetle-Rutpela maculata
Yellow and black beetle-Rutpela maculata

The distant mewling of a Buzzard calling from above diverted my attention and I caught glimpses of it as it circled high above the trees.

This was the first one I’d seen in a while, so I wondered if it might appear back over the field, perhaps with its family, so moved on in that direction. It was a sun-in-and-out morning, surprisingly cool on the shady path when the breeze picked up.

Path edged with False Brome

Paths are edged with grasses, which are flowering now. False Brome predominates, covering large swathes of the woodland floor in places throughout this site, and there are lesser amounts of other species such as the distinctive Cock’s-foot.

Cock's-foot-Dactylis glomerata
Cock’s-foot-Dactylis glomerata
False Brome-Brachypodium sylvaticum
False Brome-Brachypodium sylvaticum

 

10:40 There was nothing to see at this edge of the woodland except the wind rippling over the long grass of the meadow, and it was too cool to linger.

The sun came out again as I walked between the pine trees. This has become one of my favourite parts of the woods. I love the characterful Scots Pine trees with their tall, straight trunks crowned on high with heavy, strangely twisted branches in all seasons; but today with their rust-red bark still slightly damp and darkened by rain and highlighted by filtered sunlight they had a special glow.

There were no birds to be seen and for a while no sound of them either, until their silence was briefly broken once again by the Buzzard and the familiar contact calls of more Blue Tits working their way through the trees.

PATH EDGES

Nipplewort-lapsana-communis

Opportunistic wildflowers crop up randomly along the path edges, mostly of those species that seem to travel alongside the blackberry brambles, accompanying them wherever they go. In flower now are nettles, dock and delicate-looking Nipplewort.

All have value to insects in their way, either as sources of pollen and nectar or via their leaves which are either eaten from the outside or mined and eaten from the inside.

Curled Dock
Curled Dock
Common Nettle
Common Nettle

10:47 – My next stop is at the brambly-scrubby patch at the junction of three woodland paths. In recent weeks this has been buzzing with a variety of bees, in particular Tree Bumblebees that clearly have a nest nearby, or there may even be two. There have been a lot of Early Bumblebees too, but lesser numbers of other common species and so far I’ve only seen one or two Red-tailed bumblebee queens; no workers.

Predominately a raspberry bramble patch, which flowers earlier than blackberry, there is less blossom here now so is less of a draw for foraging insects now. There were a few Tree bumblebees about though, some working, one or two taking short rests on nearby sun-warmed leaves; poor things have probably already been out working for hours. This has been a great spot for hoverflies this Spring too, where I’ve  added a few ‘new’ species to my list. It was starting to get warmer, which doesn’t seem to bother bees, but hoverflies often seek shade under leaves, so I wasn’t too surprised there were few to see. Then I spotted one of the largest of our UK hoverflies, a Great Pied Hoverfly (Volucella pellucens) on some more shaded brambles. Not a new species for me, but I’d not seen one in this spot before. In contrast there were also a few of one of our smallest and commonest hoverflies about, little Marmalade Flies (Episyrphus balteatus).

Gt Pied Hoverfly-Volucella pellucens
Gt Pied Hoverfly-Volucella pellucens
Marmalade Fly-Episyrphus bateatus
Marmalade Fly-Episyrphus bateatus

10:46 A bird landed in an Oak tree a few metres behind the Sycamore tree, on first impressions quite big,heavy-ish landing so probably a Wood Pigeon. I almost didn’t take any more notice, but then it came to mind that this is a good spot to see Jays, which I am always keen to try to photograph as they are quite elusive, so I focussed on it and was excited to see it was neither Wood Pigeon nor Jay, but a dark handsome Buzzard. What a beautiful bird, and posing so nicely too.

The Woodland Trail

11:10 As I walked on, I remember thinking that the sighting of the Buzzard and managing to get a half-decent photograph of it was going to be the main highlight of my day. But then you just can’t predict what you may or may not see on any given day in this treasure trove of nature, as I later discovered.

Reaching the Woodland Trail, I crossed it to sit on the bench for a few minutes to enjoy the sunshine and to listen to what was around me whilst I wrote some notes. I’m always fully aware of the soundtrack of my walks, but unless I get lucky and can photograph or record a singing bird can’t always properly recall what I heard. This is what I wrote here ” … for 30 seconds, maybe a little longer there are no extraneous sounds; no noise from the road, no dogs barking, no human voices, only the sounds of twittering birds – most likely Blue Tits reassure me I haven’t gone suddenly deaf! A Robin’s just flown into the tree above me. It sits and looks at me for a few seconds before flying into the woods I’ve just left. I see a Small Heath butterfly; it lands but I didn’t spot it in time and it flew off, surprisingly rapidly for such a tiny butterfly, ditto a Meadow Brown!”

As I got up to carry on I caught sight of a small gingery-furry bee flying over a fallen tree branch, which I thought might have been a Tawny Mining bee. I tried to focus in on it, but it was flying and although I pressed the shutter a couple of times I knew the bee wouldn’t be in focus, but may do as record shots. I can’t even begin to describe my feelings when I looked at those photographs on my computer later that evening. Expecting to see an out of focus bee, there too was also an almost perfectly in-focus lizard lying motionless and perfectly camouflaged along the length of the fallen branch which the bee was flying over. It had probably been watching me and wondering whether it should stay still or risk making a move. I’m grateful it chose the latter option.

Part of me was glad I hadn’t noticed the lizard, which is a Common or Viviperous Lizard, as I’m sure I’d have been so excited to see one in a position where I might get a photograph that I’d have fumbled with the camera and likely have missed it. But then I think it would have been nice to get a proper look at one rather than just a glimpse of a disappearing one, which is all I’ve managed so far in my years of tramping this hill! Mainly I’m just more than happy to know it was there and I have a photograph, however I managed it!

Being oblivious at this point to my lizard ‘capture’, and back in insect-seeking mode, I wandered along to the huge bramble tangle that once in flower has always been a brilliant place to spot a good variety of insects in a relatively short space of time with minimal effort. Years ago, this was the first place on the reserve that I recognised as an insect ‘hotspot’. There was a fair amount of activity here this morning, mostly from bumblebees, but there was also another Gt Pied Hoverfly, a Red Admiral butterfly, a Strangalia maculata beetle that only showed me its antennae and legs and a few different species of flies. Getting photographs was tricky, insects were constantly moving, the sun was shiningly brightly, but probably more to the point the path was getting busy with people and dogs and I got fed up having to keep moving to let them pass at a ‘safe distance’.

Volucella pellucens
Volucella pellucens
200615-1126-BEWT (122b)-Bumblebee no id
Tiny Tree bumblebee
Tiny Tree bumblebee
Early bumblebee
Early bumblebee
200615-1122-BEWT (110a)-Fly
200615-1116-BEWP (102a)-Fly

Tutsan growing alongside the bramble already has ripening berries. Its flowers hadn’t the same degree of appeal to insects as bramble, but I did catch a little Marmalade Fly visiting it.

Tutsan with berries
Episyrphus balteatus

The woodland is at the peak of perfection now, leaves are fully grown, in a myriad of shapes and uncountable shades of fresh green; climbers and ramblers are not yet over-reaching themselves to become sprawling and untidy and the plants along the path edges are not yet spilling over it.

 

Speckled Wood butterflies were stationed every few metres along the path, whether basking on the ground or perched on leaves overhanging the path. Constantly on alert, they readily explode into action to see off any intruders into their territory.

 

Trees arch across the path creating shady leafy tunnels

First wild raspberry

Generally birds are much quieter these days, apart from the Blackbird I heard earlier the only ones still singing to any extent are our summer breeders-Chiffchaff and Blackcap.

The closed canopy makes it too shady for there to be much in the way of ground-level plants for a while, so there are few distractions, other than Speckled Wood butterflies of course and the occasional sight of a Blackbird foraging in the safety of the dappled shade.

No matter how often I walk along this Trail, several times a week sometimes, each time I see it with fresh eyes. Looking up there are places where trees on opposite sides seem to avoid contact, leaving fascinating space between their contrasting leaves.

The same scenery changes according to the lighting effects; the varying cloud cover and the angle of the sun at different times of the day as the seasons progress all contribute, as do the weather conditions, particularly on days when there’s wind and how strong it is. On the ground, complex shadow patterns may be cast on the uneven canvas of the bare-earth path.

12:05: The steps up from the shady sheltered Woodland Trail lead into what could be an entirely different dimension….

a good place to take a break..

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Alien invaders in the Ally Pally Park

05 Sunday Jul 2015

Posted by theresagreen in Insects, Nature of Wales

≈ 5 Comments

Tags

Alexandra Park, harlequin ladybird, Harmonia axyridis, invasive ladybird species, invasive species, ladybird larva, ladybirds, longhorn beetle

I’ve recently spent two weeks in London with my youngest daughter, awaiting the arrival of her first baby. She was a little bit late, as babies often are, so to alleviate everyone’s tension a little, my son took over ‘ entertaining mother duties’ for a couple of days. He lives in North London near to the lovely  Alexandra Palace, and he took me there for some much-appreciated exercise and a glimpse of some natural scenery of the surrounding Alexandra Park.

On the way there we walked by a children’s playground and I could not pass it by without acknowledging the large recumbent and clearly friendly dragon that forms an imaginative raised play area.

Play area built on the back of a dragon

Play area built on the back of a dragon

Long grass on the hillside of Alexandra Palace Park

Long grass on the hillside of Alexandra Park

I was pleasantly surprised by the amount of space left in a natural state.

Aleandra Palace & surrounding parkland

Alexandra Palace & some of its surrounding parkland (photo from official website)

Alexandra Palace is set atop a steep hill located between Muswell Hill and Wood Green, in the north of the city. Alexandra Park was opened by the renowned landscape architect Alexander McKenzie as a pioneering Victorian leisure Park and centre for education and entertainment.Originally opened in 1873 but rebuilt in 1875 following a destructive fire, it was designed to serve as a public centre of recreation, education and entertainment and as north London’s counterpart to The Crystal Palace in south London. It was always intended as “The People’s Palace” and later nicknamed “Ally Pally” (supposedly by Gracie Fields)

 Managed by the Alexandra Park and Palace Charitable Trust, the Park’s 196 acres of Grade II listed English Heritage parkland is maintained by a specialist team dedicated to ensuring the beautiful landscape is well preserved and remains very much at the heart of the local community.

Dog Rose-

Dog Rose- Rosa canina

I stopped to photograph elderflower blossom and spotted the first of several ladybird larvae I was to see on and around the elder tree.

Elderflower blossom

Elderflower blossom & first glimpse of a ladybird larva

The larvae were quite sizeable, so would be classed as ‘juvenile’, in a late instar form. I didn’t recognise which species of ladybird they belonged to, although I did think it unusual to see so many and that they were out in the open.

Ladybird larva on an elder leaf

A ladybird larva has four instars, i.e. it sheds its skin four times as it grows. Early instar larvae are very small and difficult to identify, but third and fourth instar larvae, particularly of the larger ladybird species are more recognisable.

The larva

The larva close-up

Then I saw a ladybird actually in the process of emerging into its adult form and it clicked that these were a new generation of the invading alien Harlequin ladybird – Harmonia axyridis. 

An emerging Harlequin ladybird

An emerging Harlequin ladybird

Harlequin ladybird – Harmonia axyridis

Common names: Asian lady beetle: Halloween lady beetle; Multicolored Asian lady beetle

Harlequin ladybirds, native to Asia,  were introduced to north America and mainland Europe as a biological control for aphids, but their voracious apetites and the subsequent decline of native ladybird species has focused attention on them as a subject for control. Large numbers hibernate indoors and in wall cavities during cool winter weather, which doesn’t help their cause.

A recent article in the Guardian newspaper names the species as the world’s most invasive ladybird and states that “Harlequin ladybirds have been declared the UK’s fastest invading species after reaching almost every corner of the country in just a decade. The cannibalistic ladybirds were first realised to have reached the UK in 2004 when they were seen in Essex and have since spread as far afield as the tip of Cornwall and the Shetland Islands, making it the fastest alien invasion of the UK on record.

Dr Helen Roy, of the Centre for Ecology and Hydrology, said a decade of sightings recorded by the public as part of the UK Ladybird Survey since 2005 have revealed just how far and fast the harlequin has spread… adding that it is now consolidating its presence in the UK.

Harlequin ladybirds (image from the Guardian)

Harlequin ladybirds are variable in their appearance (image from the Guardian)

The species is believed to be responsible for the decline of at least seven native ladybirds, including the popular two-spot, which when last assessed in 2012 had slumped 44%. Dr Roy said that there has been no sign of a recovery among two-spots.

On a brighter note, it may be that Harlequins have some benefits as they prey on a variety of smaller insects, especially aphids which can damage crops and garden flowers, but the extent to which they protect plants is undetermined. There is also evidence to suggest that native insects may now have adapted to prey on the Harlequins, helping to keep numbers in check.

The invasion of the Harlequin ladybird (Harmonia axyridis) threatens our native populations. If you want to know more about this species in particular, or want to record sightings, please have a look at the Harlequin Ladybird Survey website.

Moving on I found more beetles on a hogweed flowerhead, the large one is a Longhorn beetle.

Longhorn beetle-Stenurella melanura - Stenurella melanura

Longhorn beetle-Stenurella melanura – Stenurella melanura

We walked along an avenue lined with enormous London Plane trees and stopped to look at some of  the Fallow Deer in the enclosure. Alexander Mackenzie included a small deer enclosure when he designed the original layout of the park. Fallow deer were reintroduced to Alexandra Park by the GLC and the small herd here today are their direct descendents.

Roe deer male with new antlers still covered with velvet

Fallow deer male with new antlers still covered with velvet

We strolled around the boating lake, eating ice cream and watching mallards, several of which were females with varying-sized ducklings, coots, tufted ducks and canada geese swimming around. At the far end of the lake a flock of opportunistic pigeons and a couple of grey squirrels were feasting on food probably put out for the ducks.

We hadn’t gone to see the Palace itself, but I couldn’t not mention that of course this is where the world’s first television broadcast was transmitted from.

Alexandra Palace is where the first BBC broadcast was made

The world’s first television broadcast was famously made from Alexandra Palace 

I loved this round stained glass window too, it must be even more special viewed from inside the building with the light shining through it.

The jewel-like stained glass window

The jewel-like stained glass window

We had come to the top of the hill for the views – from the terraces of the Palace there are spectacular panoramic views of London’s skyline.

View to the London skyline - click to enlarge

View to the London skyline

The breathtaking views stretch from Canary Wharf to St Paul’s Cathedral and the Shard. The view extends as far as Crystal Palace, with its transmitter being visible on the horizon. (Click on images to enlarge them)

View to London city skyline - click to enlarge

View to London city skyline – I think the large red brick building just left of centre is HM Prison Holloway (sometimes known as Holloway Castle)

The Friends of Alexandra Park organise various nature-based activities that have included a Fungus Foray, Bat Walk, Bird Walk, Tree Walks, Insect Hunt and a Moth Evening.

PS – Mother and baby granddaughter doing well!

 

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‘But it is the common species that keep the living world ticking over and provide most of our experiences of wildlife, and I would argue that maintaining the abundance of these is as important a conservation priority as maintaining the existence of rarities’. Richard Mabey

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