• ABOUT
  • BIRDING 2018
  • Birding 2019
  • BLOG POSTS
  • Butterflies 2018
  • Resources

earthstar

~ a celebration of nature

earthstar

Category Archives: insects

Leafmines: Stigmella viscerella

18 Monday Aug 2025

Posted by sconzani in insects, trees

≈ Leave a comment

Tags

British leafmines, leaf-mining moth larvae, leaf-mining moths, leafmines on Wych elm, Stigmella viscerella, Wych elm

I’m often surprised when I find a new leafmine: how is it that I’ve not noticed this one before, and how many different leafmines can there be? The answer to the first question has to be that I haven’t been paying enough attention, and to the second that there are probably hundreds that I haven’t yet found.

Today’s new leafmines were made by larvae of the moth Stigmella viscerella, and the mines can be found on the leaves of Elm trees, in this case Wych elm (Ulmus glabra), during August and September. Now that I’m aware of them, I’ve managed to find the mines in two different locations on two separate days, which is why the elm leaves in the two sets of images look different in colour (one day was brighter than the other).

The epithet viscerella may seem odd – it comes from the Latin viscera, plural of viscus, and refers to the human body’s internal organs – but when I look at these mines, the twisting shapes of the frass-filled galleries do, indeed, remind me of human intestines. I presume that the adult moth is not often seen as the UK Moths website doesn’t have its photo but, if you’re curious to see what emerged from these ‘intestines’, I managed to find an image on the German Lepiforum website.

Like Loading...

Coleophora argentula

16 Saturday Aug 2025

Posted by sconzani in insects, plants, wildflowers

≈ Leave a comment

Tags

case-bearing caterpillar, case-bearing larvae, case-bearing moth larva, Coleophora argentula, moth larvae on Yarrow, Yarrow

These may not look like much – in fact, when looking at these images, you might struggle to see anything but fading flower heads of Yarrow (Achillea millefolium) – but I’ve been checking almost every Yarrow flower I see, looking for these, since I first saw them mentioned on social media a few years ago.

These tiny brown tubes, camouflaged with a plant material covering, are the larval cases of the moth Coleophora argentula. From within their home-made protective covering, the little larvae poke their heads out to munch on the Yarrow flowers and on the seeds when they begin to develop.

According to the British Leafminers website entry on this species, the larvae are usually active from September through to May, so these are a little early; I’m finding many things are early this year, presumably due to the continuing warm weather. You can see the adult moth, a very pretty little thing, with pale brown and white stripes, over on the UK Moths website.

And now, have another look at the first photo. How many of the little brown cases can you find? Answers on a postcard. 🙂

Like Loading...

Red-veined darter

14 Thursday Aug 2025

Posted by sconzani in insects

≈ Leave a comment

Tags

British dragonflies, dragonfly, immature Red-veined darter, migrant dragonflies, Red-veined darter, Sympetrum fonscolombii

Last week I celebrated my tenth anniversary of life in Wales with a lovely long walk around the local areas I’ve come to know so well. And, almost as if Nature was gifting me an anniversary present, this gorgeous creature flitted up from the grass next to the path in front of me, before settling again very near to me. I knew immediately, from the half blue eyes, that this was something special.

This is a Red-veined darter (Sympetrum fonscolombii). As you can see, it’s neither red, nor does it have red veins in its wings. The dragonfly is named for the colouring of a mature male but this golden beauty is an immature dragonfly, which you can tell from the black collar across the front of its thorax. I think it’s a male but my photos don’t show enough detail to be sure.

Red-veined darters are migrants from southern Europe. They are reasonably common in southern Britain but the numbers vary from year to year, presumably depending on conditions in Europe and on the weather conditions – warm southerlies or sou’easterlies would help them fly our way. I saw three in 2019, and, when I was comparing notes with one of my birding friends who also likes dragonflies, he agreed that, for some reason, that had been a bumper year for them. Neither of us has seen one locally in the six years since them, until now. I am, of course, hoping for more, especially as I’ve yet to see a strikingly vibrant male Red-veined darter.

Like Loading...

Three shieldbug nymphs

13 Wednesday Aug 2025

Posted by sconzani in insects

≈ Leave a comment

Tags

Acanthosoma haemorrhoidale, British shieldbugs, Bronze shieldbug, Bronze shieldbug nymph, Cyphostethus tristriatus, Hawthorn shieldbug, Juniper shieldbug, shieldbug, shieldbug nymphs, Troilus luridus

I’ve found some nice nymphs of our various shieldbug species during recent walks so thought I’d share a few of them. The nymphs almost always look quite different to the adults of the same species; if you’re unsure which shieldbug or which stage (instar) of nymph you’ve found, the British Bugs website has a page full of excellent drawings showing the various instars of all the British shieldbug species.

As this was only my fourth ever sighting of this species, I was particularly pleased to spot this Bronze shieldbug nymph (Troilus luridus), though it would have been difficult to miss as its metallic colours sparkled in the sunshine.

To illustrate how much these bugs change as they grow, I’ve included two photos of Hawthorn shieldbug (Acanthosoma haemorrhoidale), the top image shows early instar nymphs and below that is a mid instar nymph.

It was just a couple of months ago that I saw my first Juniper shieldbug (Cyphostethus tristriatus) and I wrote then (Juniper shieldbug, 3 June) that I was intending to return to the site to look for more, adults and nymphs. I did, and I have; this is one of two nymphs I found recently, a bug that’s just a stunning as the adult, in my humble opinion.

Like Loading...

White grasshopper

12 Tuesday Aug 2025

Posted by sconzani in insects

≈ Leave a comment

Tags

British grasshoppers, Field grasshopper, grasshopper, Isle of Portland grasshoppers, Orthoptera, white Field grasshopper, white grasshopper

Except, perhaps, for a post about local flora, this will be the last of my blogs about what delights of Nature I discovered during my recent visit to Weymouth, and this is definitely my most unexpected find, an all-white grasshopper. It didn’t have pink eyes so I don’t think it qualifies as albino but it was certainly unusual.

I wasn’t sure what type of grasshopper it was, as it’s a nymph not an adult, and they can be tricky to identify, but I received some valuable assistance from the National iRecord verifier for Orthopteroid insects when I posted a photo on social media. David wasn’t sure either at first but I used Photoshop to fiddle with the light and contrast in my image so as to show the features a little more clearly and, from that, David could tell: ‘There is a fair amount of kink in the side keel, shown pretty clearly … Given that it actually looks most like Field GH, that they are the ones likeliest to be nymphs now & that they are also one of the most variable spp, the chances of it being anything else are slim.’ So, Field grasshopper it is!

Just to illustrate how very unusual this creature was, here’s a photo of a normal Field grasshopper that I took just a few days ago.

Like Loading...

Adonis blues

11 Monday Aug 2025

Posted by sconzani in insects

≈ Leave a comment

Tags

Adonis blue, blue butterflies, British butterflies, butterflies in Tout Quarry, butterflies on the Isle of Portland, butterfly, Dorset butterflies, Isle of Portland butterflies, Polyommatus bellargus

In classical antiquity, Adonis was celebrated as the epitome of male beauty. I presume, when writing in his publication British Butterflies in 1860, W. S. Coleman named this striking butterfly the Adonis blue, he considered it was the epitome of male beauty in the world of British butterflies. Though lacking the elaborate patterning of many British butterflies, the sheer brilliance of the colour of the male Adonis blue (Polyommatus bellargus) is breathtaking.

Fortunately for me, this butterfly has two broods each year so, though I missed the first in May-June, I timed my visit to Weymouth perfectly for the very start of the emergence of the second brood in August-September. I only managed to see two males, no females (which have chocolate brown upper wings, tinged with varying amounts of blue) but, as these sightings were only the third time I’d seen any Adonis blues, I was very happy indeed!

Like Loading...

Chalkhill blues

08 Friday Aug 2025

Posted by sconzani in insects

≈ 2 Comments

Tags

British butterflies, Butterflies in King Barrow Quarry, butterflies in Tout Quarry, butterfly, butterflying on Portland, Chalkhill blue, King Barrow Quarry, Portland butterflies, Portland's quarries, Tout Quarry

It was six years since I’d last seen a Chalkhill blue so it probably comes as no surprise that I took rather a lot of photographs of these gorgeous butterflies during my two visits to Tout and King Barrow Quarries on the Isle of Portland, in Dorset, last week.

I decided it would be easier to share the best of these in the form of a video slideshow, and I’ve also included a few photos of the quarries to provide context and give an indication of the habitat in which these butterflies thrive. Tout Quarry has the added benefit of being an open air sculpture park, so it’s very easy to spend many hours there, delighting in both the natural beauty of the butterflies and the creativity of the sculptors.

Like Loading...

Wall butterfly

06 Wednesday Aug 2025

Posted by sconzani in insects

≈ Leave a comment

Tags

British butterflies, butterfly, Dorset butterflies, King Barrow Quarry, Portland butterflies, Tout Quarry, Wall, Wall brown, Wall butterfly

Wall seems such a bland name for this stunning butterfly, though the name does describe where it’s often to be found, sitting on a stone wall – or just a large boulder, soaking in the sunshine.

The UK Butterflies website gives a list of all the different names our butterflies have been given over the years; the Wall started out as the ‘Golden Marbled Butterfly, with Black Eyes’ – a bit of a mouthful but wonderfully descriptive, has been the ‘Great Argus’ and the ‘Orange Argus’, and also ‘Wall Brown’, a name many people still use.

I found my first Walls in six years in the quarries on the Isle of Portland last week, at Broadcroft Quarry Butterfly Reserve (which was actually quite a disappointing location as it is very overgrown and so not the ideal habitat for most butterflies), at King Barrow and Tout Quarries (both excellent).

Though it was once found at sites throughout Britain, the Wall has suffered a severe decline in population in recent decades, and is now restricted mostly to coastal locations. In Life Cycles of British & Irish Butterflies, author Peter Eeles explains that this seems to be due to the changing climate. The warmer summer and autumn temperatures can encourage the butterfly to attempt to breed a third generation, which subsequently fails to mature before the weather turns colder.

Like Loading...

Sunshine in a butterfly

04 Monday Aug 2025

Posted by sconzani in insects

≈ Leave a comment

Tags

British butterflies, butterfly, Clouded yellow, Colias croceus, Dorset butterflies, migrating butterflies, RSPB Lodmoor

I’ve been away for another mini break, staying once again in Weymouth, on Dorset’s south coast, for four nights, spending my three and a half days surrounded by birds and butterflies (also crowds of summertime beach visitors, though, fortunately for me, most of them weren’t in Weymouth for the same kind of wildlife as I was). With cool winds and lengthy spells of drizzle, the weather wasn’t as good as during my visit in early June, but I saw lots of lovely creatures that I will share with you over the coming week.

First up today is the first of four new-for-2025 butterfly species I saw, this gorgeous Clouded yellow (Colias croceus), a butterfly I don’t see in south Wales every year as they’re migrants from Europe and their appearance on our shores depends a lot on weather and wind direction and how their population is faring. This sighting was particularly welcome, as I had spent Tuesday morning wandering around the RSPB’s Radipole reserve in almost constant drizzle, then headed for an afternoon wander around RSPB Lodmoor. This little drop of sunshine fluttered up right in front of me when I got to Lodmoor, a sign of the lovely afternoon to follow.

Like Loading...

Beetle: Four-banded longhorn

02 Saturday Aug 2025

Posted by sconzani in insects

≈ Leave a comment

Tags

British beetles, British insects, British longhorn beetles, Four-banded beetle, Leptura quadrifasciata, Longhorn beetle, yellow-and-black longhorn beetle

This is my second recent new longhorn beetle find, Leptura quadrifasciata, also known as the Four-banded longhorn – the reason for that name will be immediately obvious, I’m sure.

Interestingly, these beetles are associated with old woodland, though I found this one feeding on a Wild carrot flower (they feed on umbellifers) on the edge of Cardiff’s Grangemoor Park, a former landfill site. The nearest old woodland would probably be about a mile away in a direct line, quite a long flight for a beetle.

At first glance, Leptura quadrifasciata looks quite similar to the other yellow-and-black longhorn beetle, the Spotted longhorn Rutpela maculata, but the four bands on the former’s abdomen are quite regular and precise whereas the markings on the latter are more random and splotchy. My immediate impression of Leptura quadrifasciata was of a darker-looking beetle than Rutpela maculata, which always looks quite bright to my eye, and that’s actually what made me look closer; one of my ‘Oh, what are you?’ moments!

Like Loading...
← Older posts
Newer posts →

About me

sconzani

sconzani

I'm a writer and photographer; researcher and blogger; birder and nature lover; countryside rambler and city strider; volunteer and biodiversity recorder.

View Full Profile →

Follow earthstar on WordPress.com

Enter your email address to follow this blog and receive notifications of new posts by email.

Recent blog posts

  • No booming Bittern but … March 9, 2026
  • Danish scurvygrass March 8, 2026
  • Four weeks early March 7, 2026
  • Three shieldbug species March 6, 2026
  • Toad spawn March 5, 2026

From the archives

COPYRIGHT

Unless otherwise acknowledged, the text and photographs on this blog are my own and are subject to international copyright. Nothing may be downloaded or copied without my permission.

Fellow Earth Stars!

  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar

Blog at WordPress.com.

Privacy & Cookies: This site uses cookies. By continuing to use this website, you agree to their use.
To find out more, including how to control cookies, see here: Cookie Policy
  • Subscribe Subscribed
    • earthstar
    • Join 669 other subscribers
    • Already have a WordPress.com account? Log in now.
    • earthstar
    • Subscribe Subscribed
    • Sign up
    • Log in
    • Report this content
    • View site in Reader
    • Manage subscriptions
    • Collapse this bar
 

Loading Comments...
 

You must be logged in to post a comment.

    %d