Tag Archives: insects

Dandelion Explosion!

This year we have had a very cold spring, and most plants and wildflowers are way behind their normal growth levels, but yet again the humble and resilient Dandelion (Taraxacum officinale) has saved the day.

Dandelions can flower all year, but in April they absolutely explode into blooming and our environment and our food depends on the fact that the massive amounts of pollen produced by the dandelion blooming sustain vital pollinating insects at a time that would otherwise be a crisis for them, and then result in a crisis for us. In fact, I believe we should have a dandelion festival every year to celebrate this most important of all spring wildflowers. This is my video dedicated to the dandelion:

Above is one of our rarest pollinators, the Tawny Mining Bee (Andrena fulva) and this species also depends heavily on the dandelion for pollen, especially as this bee emerges in late March and flies mostly in April, and to a lesser degree in May, before dying off by early June and not being seen again until the following spring.

However, big bumblebees depend on them too, like this huge Buff-tailed Bumblebee (Bombus terrestris).  Let’s celebrate the dandelions.  They deserve it.

Autumn Surprises

At the end of every summer I usually have a few regrets, mostly places I didn’t go, creatures I didn’t see, and photos I just missed. One of my regrets this year was I didn’t see so much as a single Hummingbird Hawkmoth (Macroglossum stellatarum) all spring and summer. And then it happened – the Autumn Equinox was gone and it was getting cooler, and one bright sunny morning (late morning) a Hummingbird Hawkmoth flew past me and landed on a Butterfly Bush to bask in the weakening sunlight, allowing me to sneak up and get a macro of what looks, to the casual observer, like a large and very unspectacular moth. Of course, we all know differently:

   But that wasn’t all – this spring and summer, for reasons which never revealed themselves, I didn’t see one Beaked Hoverfly (Rhyngia species). And then one appeared as if by magic only moments after the Hummingbird Hawkmoth had flown away, feeding on a cultivated convolvulus flower:

This year there are plenty of hoverflies to be seen, even now. There has been a mass blooming of dandelions this autumn, currently underway, and many handsome species can be seen feeding on them. And their favourites, the convolvulus flowers, are still blooming in many places. Here is the very common hoverfly species Syrphus ribesi feeding on Hedge Bindweed (Calystegia sepium). However, it seems some of the predators which stalk these flowers are still about – I didn’t notice it when I took this photo, but look at the white object beneath the flower. Do you know what that is?

This bright white beast, which looks like a fallen petal, is a female Flower Crab Spider (Misumena vatia) and the hoverfly is very lucky it had left the flower as it almost certainly would not have seen the spider until after it had been caught by it. Autumn, more than any other time of year, is dominated by spiders. Flies beware!

Embracing Autumn in Wicklow

This year autumn really feels like autumn. Since the Equinox the weather has seemed markedly cool, although there’s been good sunshine too. There’s a lot of rain about also, though. However, there are still some very interesting things to be seen. All across the landscape there are the big, beautiful, shimmering webs of the Garden Spider (Araneus diadematus) slung between bushes and trees, and occasionally buildings too:

  These webs are mostly made by the females, which reach full size at this time of the year. They are extremely pretty spiders, almost jewel-like, and very ungainly on the ground, so they almost never leave their webs. There are mainly two variations – a common, boldly-marked one with strong brown and white markings; and a pale, almost golden variety, which you can see here:

The presence of these large, stout spiders attracts insectivorous birds. Spiders are extremely nutritious, on average about 40 times more nutritious than a fly of similar size, and also relatively easy to catch in comparison to flying insects. As a result, this is one of the best times of year to see bird species such as the Grey Wagtail (Motacilla cinerea), which are much less shy than they usually are during the majority of the year. Usually they hunt along riverbanks, and specialise in catching semi-aquatic insects, such as mayfly or stonefly:

   Many people assume, when they see one, that they are looking at the Yellow Wagtail (Motacilla flava) as this one has so much yellow on it, but the Yellow Wagtail is actually almost completely yellow, whereas the Grey Wagtail has quite a lot of grey on it, although it’s not so noticeable when one of these birds flies across the path in front of you. Although spiders are easy pickings, birds have lots of flying insects to hunt too. The past summer was a bumper year for Comma butterflies (Polygonia c-album), and you can see a second, even more brightly-coloured generation this autumn, if you keep your eyes peeled. Here is one I came across at the weekend:

However, this is the end of the time of the Commas, and very soon this second generation will also be gone into hibernation. They live to re-emerge in the springtime when they breed.

Besides butterflies there are also many moths to be seen, and one very interesting species which is attracted to the lights of windows, is the Feathered Thorn (Colotois pennaria). The ‘feathered’ title comes from the shape and size of the male’s antennae, which do look like miniature feathers. Here is a very handsome specimen which I photographed on a wall by a window the night before last. It’s a male, but unfortunately its antennae are folded beneath it:

   Autumn is only beginning, and there are many interesting things to be seen, and still more to come.