19 Tuesday May 2020
Red admiral, that is. Last year, this was the first butterfly I saw, and it was early, in January. In fact, I saw two of them before January 2019 came to a close. This year it’s taken four and a half months but, finally, on Saturday, when I was enjoying a lovely wander along a local path, admiring the tall frothy loveliness of masses of Cow parsley, this little beauty floated towards me and settled, very obligingly, on a bramble bush right next to the path. Butterfly bliss!
18 Monday May 2020
Tags
Bedeguar gall wasp, British wasps, Diplolepis rosae, Orthopelma mediator, parasite of Bedeguar gall wasp, parasite of Diplolepis rosae, parasitic wasp, Robin's pincushion
This is a tale of two galls. One gall (below, left) was created by the Thistle gall fly (Urophora cardui), the other (below, right) by the Bedeguar gall wasp (Diplolepis rosae). I harvested the first gall late last year, the second early this year and, when I brought that second gall home, I made a rookie error – I put it in the same jar as the first gall. Why was that an error? Because it meant that if/when anything emerged from the galls, I wouldn’t know which gall it came from.
A few weeks ago, in late April, creatures began emerging from one or other or both of the galls. At the time, because I found an empty pupa case poking out of a hole in the Thistle gall, I assumed the creatures had emerged from it – I wrote about that in What’s in a gall?, April 2020. It turns out I was wrong.
After writing that piece, I decided to place the galls in two separate jars and, as I wrote in a post last week, two different wasp species have subsequently emerged from the Bedeguar gall wasp’s gall, the gall causer itself (Diplolepis rosae) (above, left) and a second wasp (above, right), which turns out to be the same species of wasp I wrote about in April and which, at the time, I thought had emerged from the Thistle gall fly’s gall.
The empty pupa case is now a mystery but the second wasp’s identity has been confirmed as Orthopelma mediator, a parasite of the Bedeguar gall wasp. So, adding to the initial three that emerged, a total of four of these wasps have now hatched from that gall. Amazingly, there is only one previous record, from 1933, for this wasp in the Welsh records database but I don’t think that’s because it’s a rare find; it’s just that no one bothers to keep the galls to see what emerges from them and thus the wasp is under-recorded.
So, I hope I have convinced you that this is a fascinating process which you might also like to try but do remember the moral of this tale of two galls: if you decide to bring home galls to see what might hatch out, make sure you put each and every gall in a separate jar!
16 Saturday May 2020
Tags
Bedeguar gall wasp, British galls, British wasps, Diplolepis rosae, gall on dog-rose, gall wasps, galls, Robin's pincushion
You might remember that, a few months ago, I posted about the (supposedly) empty galls of the Bedeguar gall wasp I’d found during a wet walk at Cosmeston Lakes Country Park (Empty pincushions, January 2020). A week or so after writing that post, I was back at Cosmeston and remembered to harvest one of the galls, which has ever since been sitting in a sealed jar on my kitchen windowsill.
Although the many holes in the gall made me think that all of its inhabitants had already hatched, I decided to wait and see if anything else appeared. Two days ago I noticed movement in the jar and, taking a closer look, found two different species of wasp had emerged.
This is one of them, and I’m 99% certain this is the gall causer itself, the Bedeguar gall wasp, Diplolepis rosae, the offspring of the wasp that caused the gall to form in the first place. These wasps are so tiny – just 3-4 mm long – that most of us don’t usually see them so I was very pleased to have this one emerge from its gall.
There is a bit of a story attached to the second wasp that emerged, and I am currently awaiting confirmation of its identity. As soon as I know more, I’ll write it up in a further post.
14 Thursday May 2020
Posted in insects, nature, wildflowers
Tags
British insects, Buttercup, Grangemoor Park, Oedemera nobilis, Swollen-thighed beetle, Thick-legged beetle
You know summer’s just around the corner when the Swollen-thighed beetles (Oedemera nobilis) start to appear. The Ox-eye daisies and buttercups were full of them at Grangemoor Park on Tuesday.
12 Tuesday May 2020
Posted in insects, nature, wildflowers
Tags
British butterflies, British wildflowers, butterfly, Common blue butterfly, wildflowers on road verges, wildflowers on roadsides
One of the benefits of some local councils not mowing all the road verges at the moment is that wildflowers that would normally be strimmed to death are now being allowed to grow and bloom.
Not only does this mean we get to enjoy their glorious rainbow of colours but the wildflowers’ pollen and nectar also provide a nutritious feast for all the newly emerging insects.
And it was on one such uncut verge that I spotted my first Common blue butterfly of the year today, this stunning, pristine, little male.
If only the councils would mow less all the time, then we’d be able to enjoy both the flowers and the insects all through spring and summer, and it would also go a little way to reversing the huge decline in insect life that’s happening all over the world.
07 Thursday May 2020
Not only did I see my first dragonflies of the year yesterday at Lavernock Nature Reserve but I also spotted my first Dingy skippers (Erynnis tages).
At least four of these inconspicuous little butterflies were feeding on their favourite food plant, Common bird’s-foot trefoil, or basking on the compacted earth of the tracks through the reserve, as is their wont.
Their preferences for bird’s-foot trefoil and patches of bare ground are why these butterflies are often found on chalk and limestone grasslands, on brownfield sites and in disused quarries, amongst sand dunes and along open pathways adjacent to woodland.
Sun, shelter and good food – it’s not much to ask for. But, sadly, the Dingy skipper is one of many declining species of butterfly in Britain, probably due to the way land is managed and to the intensification of agriculture. So, I feel very privileged to be able to observe and enjoy these lovely little skippers so close to home.
06 Wednesday May 2020
I was delighted to see my first dragonflies of the year at Lavernock Nature Reserve during this morning’s walk: two female (with the golden abdomen) and two male (blue abdomen) Broad-bodied chasers.
05 Tuesday May 2020
I know I already posted about seeing my first Orange-tip butterfly of the year (The ostentatious Orange-tip, 15 April) but, for those not familiar with this lovely springtime butterfly, I thought it might be useful to see a bit more detail. So, here is a typical male Orange-tip, from the top and the side. The speckling on the lower wings looks green but that’s an optical illusion – the colours are actually yellow and black.
And here’s a female from both angles. If you only see her from the top, you might confuse her with one of the other white butterflies, though the dark patches are different in all the whites, and the Orange-tip also has a distinctive wing shape.
I managed to find several eggs during a recent walk – the newly laid eggs are white but turn orange very quickly. You’ll find them on the caterpillar food plants: Cuckooflower, Garlic mustard and Honesty are three wildflowers this butterfly favours. And, for the first time ever, I found a caterpillar. This is a 2nd instar (i.e. stage) – the larvae proceed through 5 instars, progressively growing larger, until they are ready to pupate.
You might be wondering why I gave this post the title of ‘the Lady of the Woods’. Well, according to Peter Eeles’s superb publication Life Cycles of British & Irish Butterflies (every home should have one!), this is the name given to the Orange-tip by Benjamin Wilkes in his Twelve New Designs of English Butterflies, published in 1742.
02 Saturday May 2020
Tags
beetles, beetles on dock plants, British beetles, dock beetles, Gastrophysa viridula, Green dock beetle
Iridescent Green dock beetles are out in force now on the Dock plants in one of my local parks. I’ve blogged about these gorgeous mini-beasties before (Green dock beetles, May 2016) so today I’m just going to share a few photos. Keep an eye out for these on your exercise walks, and don’t forget to check carefully under the holey leaves for eggs and their little grey grubs.
01 Friday May 2020
With the current restrictions on movement, my butterflying has got off to a slower start than usual but today I spotted my first Green-veined white butterfly of 2020, my tenth species for the year, during my walk around Cardiff’s Grangemoor Park.
This pristine male only appeared briefly, before disappearing amongst the leafy trees, but it was a joy to see him. These spring-brood Green-veined whites are often very pale – I can’t even see the small dark spots on his upper wings and he has only a hint of yellow colouring on his undersides. The summer brood, when they emerge in July and August, usually show darker markings – I’ll try and do a comparison post later in the year to show the differences.
earthstar 
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