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Gorse Shieldbug

Marsh Fritillaries

It’s been on my ‘todo list’ for a few years now to make the effort and see the beautiful Marsh Fritillary butterflies at one of our last known breeding sites in Aberbargoed. I believe most of the site is a former colliery, a habitat formed from the scars of industry, but this scar has healed, even when it was thought to never heal again. It’s actually proving to be a ‘win’ in conservation terms, as the coal spoil itself has created a variety of micro habitats because of the way the spoil handles water. Some water gets trapped creating marshy habitats, some completely runs off creating dry patches. This water management has resulted in such a variety of plants occupying the same habitat, which is proving to be just what our insects need, as with most insects, they need a variety of plants to complete their life cycle.

This is why our modern farm practises aren’t good for biodiversity. Fields are drained to turn into dry grassland, replace with poo and chemicals which pollute our waterways. Ground nesting birds still move in, lay their eggs, and then the farmer will cut the grass, killing all that once lived there, Reptiles, Amphibians, Mammals, all dead or injured, which then attracts the predators, foxes, birds of prey, crows and gulls, of which are then blamed for feeding on still-birth lambs, and until quite recently, persecuted for it, because NRW allowed for licensed shooting of these animals who are just cleaning up after our mess.

Specialist species like the Marsh Fritillary don’t stand a chance in modern Britain. We’re so caught up in that ‘human race’ thing called life, that we forget we’re ruining it for our future generations. The exploitation needs to stop. We need more protection for nature. There are good farmers out there doing all they can to minimise their impacts on nature but it’s doing to take more than just the good will of the minority. Wildlife Trusts, Butterfly Conservation, RSPB, they are all doing their part to try and balance the equation but it’s not enough. If our government doesn’t act now, species like this will be lost forever.

Sorry rant over, also included in the photos were some very fast Dingy Skipper Butterflies, a Drinker Moth Caterpillar, some microscopic Gorse Shieldbug Eggs and a scenic shot of an emerging Fox Glove in a field of blossom. All these shots were taken with my Canon 100mm macro which is proving to be good investment. It’s nice to roam around with a small lens for a change. Lugging the telephoto and tripod around can be a bit much all the time.

Beetles and Butterflies

I set out today with the intent to find Oil Beetles. A specialist species that are in major decline across the country. There are a few different species, all of which are pretty rare but the most commonly found is the Violet Oil-beetle, which is the only species I’ve managed to find myself so far. A quick walk around the site and I didn’t spot any, but upon getting back to the car I’d realised I must have dropped my sunglasses…. AGAIN! so I retraced my steps and this time, it turned out to be a good thing, as not only did I re-locate my glasses but I stumbled upon 3 adult female Oil-beetles AND thousands of larvae on their food plant, lesser celandine. These Oil Beetles must have been laying eggs really early this year for there to be so many larvae hatching already. That warm weather in February must have made them come out early as I wouldn’t usually find them out till April in this location. I’ve probably mentioned it before, but the lifestyle of these beetles is incredible. They are what we like to call a ‘symbiotic’ or a more accurate discription would be a parasitic species, which means their life is dependant upon another species. In this beetles case, they are dependant upon the life cycle of solitary mining bee’s, which, as their names suggests, burrow into the ground to make their nest. It’s then the female Oil-beetles job to find those nests and to burrow into them to lay her own eggs inside. When the eggs hatch, her larvae then eat the eggs of the Bee’s and the pollen supplies collected by the bees and once that supply is gone, they latch onto the bee’s like a parasite, for the bee’s to drop them off to the flowers from which the larvae use the bee’s to fly them to new flowers once they’ve exhausted the pollen supplies. This process can happen a few times too, as the bees could take the larvae back to a different nest.
Just incredible! If you’d like to learn more about the other species of Oil Beetle, check out this PDF put together by Buglife.

Other species noted were Gorse Shieldbug, Bronze Shieldbug, Spotted Sedge Caddisfly ( Likely Polycentropus flavomaculatus), Brimstone, Orange-tip, Peacock and Small Tortoiseshell Butterflies.

I didn’t take any pictures of birds on this trip despite lugging the big lens around but Blackcap, Chiffchaff and Mistle Thrush were the dominant songsters in the woodland. No Pied Flycatchers back in the wood just yet but lots of Badger activity.