Category Archives: trees

Leafmines: Ectoedemia subbimaculella

25 Monday Nov 2024

Posted by in insects, leaves, trees

≈ Leave a comment

Tags

, , , , ,

This is the second of the three new leafminers I recently found in ‘green islands’ on fallen Oak leaves during half an hour’s fossicking in one of my local parks. And this one, both the adult you can see on the UK Moths website and the mine of its larva, is very similar to the first of the three I blogged about (Leafmines: Ectoedemia heringi, 18 November).

241125 Ectoedemia subbimaculella (1)

Active during October and November, today’s leafmines were created by the larvae of the moth Ectoedemia subbimaculella, and the difference between the mines of the two species is the slit in the lower part of the mine, on the under side of the leaf, of this one. If you want further information and to see additional, better photos, check out the entry on the British Leafminers website.

241125 Ectoedemia subbimaculella (2)

Leafmines: Ectoedemia heringi

18 Monday Nov 2024

Posted by in leaves, trees

≈ Leave a comment

Tags

, , , , ,

There’s a local park I don’t often visit as it’s a bit too managed for my liking but, recently, when I didn’t have time for a longer walk, I headed in that direction. And I’m very glad I did as, during one 30-minute period of fossicking through fallen Oak leaves, I found three new leafminers, all feeding in the ‘green islands’ their own chemicals had induced in the leaves. This is the first, Ectoedemia heringi, distinguishable from a similar species Ectoedemia albifasciella by the brown head seen here on the larva in the mine. You can read more about this species on the British Leafminers website and see the very attractive adult moth on the UK Moths website.

241118 Ectoedemia heringi

Autumn in Bute Park

17 Sunday Nov 2024

Posted by in autumn, leaves, trees

≈ 2 Comments

Tags

, , , ,

As mentioned in yesterday’s post, I recently enjoyed a long meander around Bute Park, in Cardiff, delighting in the kaleidoscope of autumn colours.

241117 autumn in bute park (1)241117 autumn in bute park (2)

The 130-acre park is part parkland, part playing fields, part woodland, and part landscaped garden, including an arboretum full of spectacular trees from around the world, so my photos include not only native but also exotic trees.

241117 autumn in bute park (3)241117 autumn in bute park (4)

Leafmines: Gypsonoma dealbana

13 Wednesday Nov 2024

Posted by in insects, leaves, trees

≈ Leave a comment

Tags

, , , , , ,

Two leafmine posts on one week may be a bit much for the uninterested amongst you, but this is really just a postscript to my recent post on the leafmines of two possible Gypsonoma species of moths (Leafmines: Gypsonoma species, 28 October). As I outlined in that blog I hadn’t been able to be precise in my identification as there are two Gypsonoma species that mine the leaves of Poplar. Fortunately for me, there is only one that mines Oak leaves and I managed to find several examples on an Oak sapling at Cardiff’s Grangemoor Park during a walk last week.

241113 Gypsonoma dealbana (2)

I was investigating any signs of leaf damage, which may have been caused by munching beetles or snails or various other hungry mini-beasties but, in this case, I was lucky to spot these four examples of Gypsonoma dealbana, where the moth larvae have used silk and their own frass to spin themselves tiny tubes to hide in (I’ve shown the upper and lower sides of the leaves so you can get an idea what to look for, if you’re so inclined). I’m not sure if the larvae were still present – I didn’t prod them to find out, though it’s likely they’ve already moved down into the soil below the tree, spun a little cocoon, and begun hibernating the winter months away.

241113 Gypsonoma dealbana (1)

Leafmines: Ectoedemia argyropeza

11 Monday Nov 2024

Posted by in autumn, insects, leaves, trees

≈ Leave a comment

Tags

, , , ,

The new leafmines are coming thick and fast this year, not because my skills are improving but rather because I’m following the right people on social media and take my inspiration for searching from what they’re finding.

241111 Ectoedemia argyropeza (1)

Today’s leafmines, made by the larvae of the moth Ectoedemia argyropeza, can be found on Aspen (Populus tremula) between July and November. They are easier to spot later in the season when the leaves turn brown and begin to fall as the mines cause the surrounding leaf area to remain green – the so-called ‘green islands’ that some moth species have the ability to create through the chemicals they secrete, which allows them to continue feeding in their portion of the leaf. The other thing to look for with these miners is the brown mark in the leaf petiole, where the mine originated.

241111 Ectoedemia argyropeza (2)

Though I don’t often bring home the mines I find, in this instance I had been unable to get good photos along the busy road so brought home one leaf. I temporarily forgot about the leaf for a couple of days and , when I opened the little pot it was in, found the larva had left the mine so I am also able to show you what it looks like, below.

241111 Ectoedemia argyropeza (3)

Leafhopper: Tremulicerus vitreus

06 Wednesday Nov 2024

Posted by in insects, trees

≈ Leave a comment

Tags

, , , , , ,

The hours I’ve spent fossicking around trees and turning over leaves have really paid off this year. As well as finding lots of new leaf-mining moth species, I’ve also been lucky with my search for new leafhopper species. Here’s the latest: Tremulicerus vitreus (previously known as Idiocerus vitreus). Looking at Aderyn, the Welsh biodiversity database and the NBN Atlas, there’s only been one previous Welsh record, back in 1989, and that’s showing on NBN as unconfirmed, so mine appears to be the first confirmed Welsh record. And I’ve now found around a dozen specimens, in two locations. I get the impression that I’m the only person checking for these creatures!

241106 tremulicerus vitreus (1)

The British Bugs website stresses that leafhoppers in this group are often difficult to identify but, luckily,

there is usually a pale midline on the pronotum and top of the face. Pale marks on the forewings are mostly restricted to the inner margin and the inner parts of some of the long veins….

241106 tremulicerus vitreus (2)

Though the best time to find these stunning little leafhoppers is between June and October on Poplar species, the adults do overwinter, and the females can sometimes be found on conifers during the winter months. Oh, and can you see why a photo of this leafhopper was posted on social media on Halloween, labelled the ‘Dracula bug’?

Leafmines: Phyllonorycter comparella

04 Monday Nov 2024

Posted by in insects, leaves, trees

≈ 2 Comments

Tags

, , , , ,

This was a wonderful surprise! I was checking Poplar leaves, not searching for anything in particular, when I turned over a leaf and found this tiny moth, presumably only just emerged from the pupa within its silken mine as its wings had not fully expanded.

241104 Phyllonorycter comparella (1)

I didn’t know what it was until I got home and checked my photos, and then was fairly sure I must have got my identification wrong as the Welsh biodiversity database was showing just four Welsh records, all closer to England, in the county of Gwent. The name I’d come up with was Phyllonorycter comparella (common name Poplar leaf-miner).

241104 Phyllonorycter comparella (2)

The mine certainly looked right, though it was difficult to be certain of the moth from what I had been able to see of its markings. But when I posted photos on social media, one of the moth experts I know almost immediately popped up with a comment ‘Blimey …’ and ‘I can’t think of any plausible alternatives’, and then another expert commented ‘Very good find’. And now my county moth recorder has confirmed my record. You can read more about this Poplar-leaf-mining moth on the British Leafminers website and see better photos of the adult moth on the UK Moths website.

Rowan, the thinker

03 Sunday Nov 2024

Posted by in autumn, trees

≈ Leave a comment

Tags

, , , , , ,

Did you know there is an ancient Celtic zodiac, with trees as the symbols for each of the thirteen (moon-cycle-based, hence thirteen not twelve) signs? I didn’t, until I saw a post on Instagram by the extremely talented artist Luke Adam Hawker, who has just released a series of etchings, one for each of the signs (I wish I could afford to buy the etching for my sign!).

241103 rowan (1)

Along with the tree images he’s been posting, he’s also listed information about the qualities attributed to people born under each sign. The Rowan tree is the symbol for a person born between 21 January and 17 February, summarised as The Thinker, and the qualities they are said to possess are as follows:

Philosophical visionaries with original and creative minds, often misunderstood due to their passionate ideals. Despite a cool exterior, they burn with inner passion, transforming situations and inspiring others with their unique perspectives.

Are you a Thinker? Do you recognise yourself in this description?

241103 rowan (2)

The Rowans in my images, taken at Cardiff’s Cathays Cemetery during a recent wander, are lush with berries at the moment, providing welcome fodder for both local birds and the winter thrushes currently arriving from Europe and Scandinavia.

241103 rowan (3)

Leafmines: Stigmella trimaculella

21 Monday Oct 2024

Posted by in insects, trees

≈ Leave a comment

Tags

, , , , ,

My leaf-mining contacts on X/Twitter and now on Bluesky were posting their lovely images of a mine on Poplar leaves that I hadn’t seen before so, of course, I went looking. These photos (and many more) are the result.

241021 stigmella trimaculella (1)

Though the UK Moths website information on their distribution states that this moth can be found ‘throughout England, where it is fairly common except in the west’ and that ‘there are records from Scotland and Wales, but very few’, there are, in fact, over a hundred Welsh records and they are scattered throughout the country.

241021 stigmella trimaculella (2)

This is Stigmella trimaculella (I love its common name: Three-spot dot), whose larvae munch on the leaves of Populus species – that’s all the various types of Poplar, as well as Aspen. The mine starts out as a thin gallery, widening as the larva grows in size, eventually becoming a silvery blotch. As you can see in the photo below left, the larva is a greenish-yellow in colour and has a brown head. The mines can be found twice each year, between June and July and again from September to October.

241021 stigmella trimaculella (3)