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Category Archives: insects

A Vapourer update

25 Tuesday Nov 2025

Posted by sconzani in insects

≈ 1 Comment

Tags

female Vapourer, flightless female moth, moth, Orgyia antiqua, The Vapourer, Vapourer moth

Yesterday’s walk took me past the location where I found A female Vapourer last week. She was still there, but dead. I knew the females died soon after laying their eggs but I presume she had emerged too late in the year to attract a male (the UK Moths website says ‘the adults are out from July to September, sometimes October in the south’) as there were no eggs. I know this is just the way Nature works sometimes but I still felt a little sad that this lovely moth hadn’t been able to complete her purpose in life.

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A female Vapourer

18 Tuesday Nov 2025

Posted by sconzani in insects

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Tags

British moths, female Vapourer, flightless female moth, moth, Orgyia antiqua, The Vapourer, Vapourer cocoon, Vapourer eggs

The highlight of my walk last Saturday was finding my first female Vapourer moth (Orgyia antiqua), sitting on her cocoon, presumably newly emerged.

Now, you might look at her and think ‘That doesn’t look like a moth. Where are the wings?’ That’s the amazing thing about a female Vapourer – she’s almost wingless; her wings are so tiny that she’s unable to fly. Once she hatches, the female sits on her cocoon, as this one was, emitting pheromones and waiting for a male to fly by, notice and mate with her. Then, she’ll lay her eggs on the outside of her empty cocoon (as you can see on the other cocoon I found very close to the female, and which I also blogged about earlier this year: Vapourer pupa and eggs, January 2025). As she can’t fly, the female can’t feed, so she will die soon after laying her eggs.

Ominously, there were tiny parasitic wasps hanging around the female, presumably waiting to inject her eggs, so some of those eggs may not produce caterpillars come the spring.

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Bountiful Ground-ivy

15 Saturday Nov 2025

Posted by sconzani in fungi, insects, leaves, plants

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Tags

case-bearing moth larva on Ground-ivy, Coleophora albitarsella, galls on Ground-ivy, Ground-ivy, Puccinia glechomatis, Rondaniola bursaria, rust on Ground-ivy

When the weather’s wet, which it often has been of late, I tend to focus more on looking for small things when out walking. This is partly because the larger creatures, like birds, tend to prefer taking shelter as much as we humans do but also because I don’t want to get my good camera wet and my small camera, the one I use for close-up shots, is waterproof. Monday was one such day and, when I stooped to pat a random black cat that appeared out of nowhere, I noticed how marked and mottled were the leaves of the Ground-ivy the cat was sitting next to. So, I investigated.

And what a bountiful patch of Ground-ivy it was. Firstly, I couldn’t help but notice how many of the leaves were covered with the pustules of the rust fungus Puccinia glechomatis.

Then I discovered that many of the leaves also had small bumps on them, galls caused by the miniscule mite Rondaniola bursaria.

And, perhaps best of all, while investigating the rust and the galls, I also spotted a single tiny dark case sticking up from one leaf, the self-constructed home of a larva of the moth Coleophora albitarsella. And, with that, the rain starting coming down a little too heavily for comfort so both the cat and I headed for home.

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Ichneumon: Tromatobia lineatoria

13 Thursday Nov 2025

Posted by sconzani in insects

≈ 2 Comments

Tags

British ichneumons, ichneumon, Ichneumon wasps, parasitic wasp, parasitoid of spider egg sacs, Tromatobia lineatoria

Different days, different ways, different directions …
I have no real plan for my daily walks but, recently, my feet have been taking me past the local park whose railings have turned up some nice insects in the past, and the location is again proving productive.

This handsome ichneumon is one of my finds from last week and, though it hasn’t been confirmed (there doesn’t seem to be anyone nationwide verifying ichneumon records, unfortunately), I think this is Tromatobia lineatoria. There is another very similar looking ichneumon, Perithous scurra, but the female of that species has a much longer ovipositor.

I was a little surprised to find an ichneumon this late in the year but the Naturespot website says this species can be found between May and November, so this is right at the end of its date range. The website entry also says this ichneumon is a parasitoid of spider egg sacs; there are plenty of spider webs strung along the railings so my sighting in this location is understandable.

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Harvestman: Nemastoma bimaculatum

08 Saturday Nov 2025

Posted by sconzani in insects

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Tags

British harvestmen, Harvestman, harvestman under bark, Nemastoma bimaculatum

It’s sad when huge old trees fall or need to be felled – I’m not sure what happened to the tree I found at Cardiff’s Heath Park one day last week – but it does provide opportunities for fossicking around logs and branches and under slabs of bark. And on this particular day, when I turned over one of several pieces of bark, I was delighted to find this harvestman, Nemastoma bimaculatum, a species I’d never seen before.

I’m reliably informed, by someone on social media who’s seen many of these harvestmen, that ‘they tend to freeze when you first turn over a log and expose them but then make a sudden run for it’, so I was exceedingly lucky that this one stayed perfectly still the whole time I had its home turned upside down. I was able to focus-stack some images but these harvestmen are tiny, just 2-3mm long, and the light was dull so my photos are not very sharp.

Fortunately for me, Nemastoma bimaculatum has distinctive markings – those two white spots on the black body, so it was easy to identify. This harvestman is not often recorded but the species is probably quite common – it’s just that most people don’t go looking under logs and bark to find them.

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36!

05 Wednesday Nov 2025

Posted by sconzani in insects

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British hoverflies, British hoverfly larvae, fly larvae, hoverfly larvae, Syrphus larvae, Syrphus species

Thirty six is the number of hoverfly larvae I counted on a section of the local park railings, about 10 metres long, as I strolled very slowly past on Monday. They all look to be one of the Syrphus species of hoverfly; it’s not possible to be exact with the larvae of this particular species.

This is a great time of year to look for hoverfly larvae, particularly after stormy weather. They get shaken off the remaining leaves on trees, then try to climb back up to find yummy aphids to eat. So, if you look on railings or fences, even gravestones, particularly under Sycamore trees, you’ll probably be surprised at how many you can find.

And if you want to have a try at identifying any hoverfly larvae you discover, you’ll find a free downloadable pdf Colour Guide to Hoverfly Larvae on the Diptera.info website.

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Parasite of Bedellia somnulentella

27 Monday Oct 2025

Posted by sconzani in insects, leaves, plants

≈ 4 Comments

Tags

Bedellia somnulentella larva, British moths, British parasitic wasps, parasite of Bedellia somnulentella, parasitic wasp, wasp that parasitises Bedellia somnulentella, wasp that parasitises moth larvae

The two Field bindweed leaves I brought home from my coastal walk nearly two weeks ago, on the 14th, are the leaves that just keep on giving. As well as the three moth pupae I found on them – the reason I brought them home in the first place (see my blog Bedellia somnulentella revisited, 20 October), there was another pupa that looked to me to be that of a wasp, probably one that had parasitised another B. somnulentella larva.

That tiny wasp has now hatched. As is often the case with these miniscule creatures, I have no way of determining which exact species of parasitic wasp it is, and I do realise that the whole concept of a wasp larva eating a moth larva from the inside while it’s still alive is a bit gory (perhaps I should’ve posted this on Halloween!), but I find it fascinating, both the process of parasitism and also bringing the occasional things home to see what emerges. The little wasp, a male, has been released to live its best life.

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Autumn on the Ivy

25 Saturday Oct 2025

Posted by sconzani in autumn, insects

≈ 2 Comments

Tags

autumn bees, bees on ivy, British solitary bees, Colletes hederae, Ivy bee

As soon as I get a whiff of the ‘wet flour’ smell of Ivy flowers, I know to keep an eye out for my first Ivy bees (Colletes hederae).

They appeared locally back in mid September – the Bumblebee Conservation Trust says they can be seen from late August through to early November – but, after a week of anti-cyclonic gloom when we didn’t see the sun at all, and then a week of mostly wet weather, I figured I probably wouldn’t see any more this year.

Fortunately for me, I was wrong. I happened to be in the right place at the right time earlier this week when the sun came out for a couple of hours and my walk had taken me past a row of old trees, all covered in Ivy whose flowers hadn’t yet begun to form fruit.

With its furry ginger thorax and ginger-and-black-striped abdomen, Colletes hederae is such an attractive little bee that is slowly colonising the British countryside, moving ever north, since its arrival here back in 2001.

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Lingering

23 Thursday Oct 2025

Posted by sconzani in autumn, insects

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Tags

autumn insects, British butterflies, British dragonflies, Common Darter, Odonata, Red Admiral, Speckled wood

Looking out the window now, as Storm Benjamin drenches us with heavy rain, it seems hard to believe there was some bright sunshine this morning. I happened to be at Lavernock Nature Reserve at exactly the right time to feel the warmth of that sun and I wasn’t the only one to enjoy the feeling. Although I haven’t seen any butterflies or dragonflies for at least a week, and thought I’d probably seen my last for the year, but it turns out they’re still lingering unseen, and out they popped to bask in the sun’s heat:

A Red admiral

A Common darter

And a Speckled wood.

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Bedellia somnulentella revisited

20 Monday Oct 2025

Posted by sconzani in insects

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Tags

Bedellia somnulentella, Bedellia somnulentella pupa, British leafmines, British moths, leaf-mining moth larvae, leafmines on Field bindweed, moth pupae on Field bindweed

Back in September, in my blog Leafmines: Bedellia somnulentella, I covered the mines of a moth whose larvae have some unusual habits, spinning hammocks outside their mines to rest and pupate in. Now that I’m aware of them, I’ve been seeing these mines almost everywhere I see Field bindweed. And, during last Tuesday’s walk, when I saw the plant and turned over a few leaves, I spotted two leaves that had a total of three pupae suspended beneath. I decided to bring them home so that I could, hopefully, see what the adult moth looked like.

In the intervening six days, another larva has pupated – I hadn’t even realised there was another larva in the leaves but, on Thursday, as the leaves began to dry and shrivel, it appeared, climbed up the side of the jar, spun a hammock under the lid, and pupated.

Then, yesterday, when the wild, wet, windy weather meant I spent a day at home – a rarity for me, two of the adult moths hatched from their pupae. I couldn’t get any decent images through the glass so decided to risk opening the jar to grab a few quick photos.

And today I released them into the wild. All going well, there should be two more moths to come.

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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.

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