Tag Archives: Andrena haemorrhoa

April Transformation

We had a very cold and somewhat wet March, and April has been somewhat similar, bright and sunny but often windy and chilly at the very same time. However, a huge change is underway and spring is unfolding by the day and the hour. Only a few days ago I was delighted to see a queen Carder Bee (Bombus pascuorum) sunbathing on some bare ground among the violets.

A furry queen Carder Bee, which usually appears later in spring than the much larger Buff-tailed Bumblebee queens. This is very much the spring bumblebee.
A furry queen Carder Bee, which usually appears later in spring than the much larger Buff-tailed Bumblebee queens. This is very much the spring bumblebee.

Particularly delightful is the sight of Tawny Mining Bees (Andrena fulva) on the wing.  Usually males appear first, but this year I spotted a big furry female days before the first male. This is officially our rarest species of solitary bee, and as a result the National Biodiversity Data Centre are looking for recorded sightings from the public.  Here is a link to the record sheet, which is easy to follow and make submissions on: http://records.biodiversityireland.ie/submit_records.php?fk=SolitaryBeesStandard&caching=cache

And here is a photo I got two days ago of a female Tawny Mining Bee:

25689979503_90c1d788e2And here is a photo of a male Tawny Mining Bee from the same day:

The male Tawny Mining Bee has a distinctive white 'beard'.
The male Tawny Mining Bee has a distinctive white ‘beard’.

There is a similar but smaller species of mining bee also appearing right now, the Early Mining Bee (Andrena haemorrhoa). The males are very similar to the Tawny Mining Bee males, but much smaller and lack the white beard. The female is very beautiful, and here is a photo of a female from the same day as the Tawny Mining Bee photos:

A pretty female Early Mining Bee. She is much smaller then the female Tawny Mining Bee, and about the size of a male of that species.
A pretty female Early Mining Bee. She is much smaller then the female Tawny Mining Bee, and about the size of a male of that species.

Also buzzing around the lawn, feeding on dandelion flowerheads is a small and somewhat sinister-looking wasp. This is in fact yet another bee, but for the mining bees it is indeed sinister, as it’s a parasitic bee which lays its eggs in the nests of mining bees, its grubs killing and eating the mining bee grubs. This particular species of cuckoo bee is Panzer’s Nomada (Nomada panzeri):

Panzer's Nomada
Panzer’s Nomada. There are many similar Nomada Bee species.

But it hasn’t all been bees. Despite the cold some sunny days have warmed up sheltered areas enough for migrating butterfly species to begin flying about. So far I have only seen two butterfly species, and this one is the second, a Peacock (Inachis io):

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Spring Flowers

We have some April showers at the moment, but since the Equinox on the 21 March the days have been pretty nice and warming up well. Spring moves from the ground upwards into the canopies of the trees, so that the undergrowth blooms earliest and then the insects begin appearing, feeding on the nectar and pollen that is available.

The Early Dog Violet - Viola reichbachiana - one of the earliest flowering spring plants.
The Early Dog Violet – Viola reichbachiana – one of the earliest flowering spring plants in Wicklow.
Primroses - Primula vulgaris - blooming. These are among the most hardy spring flowers, sometimes blooming beneath snow. There was no snow this year, thankfully.
Primroses – Primula vulgaris – blooming. These are among the most hardy spring flowers, sometimes blooming beneath snow. There was no snow this year, thankfully.

Keep an eye out on the flowers for the insects, especially different species of bees. Spring is the time of the Mining Bees, and there are a number of different species, but the most commonly seen in Wicklow is probably the Mining Bee – Andrena haemorrhoa.

A female Andrena haemorrhoa Mining Bee feeding on Lesser Celandine, one of the most beautiful spring flowers, which will continue to flower well into Autumn.
A female Andrena haemorrhoa Mining Bee feeding on Lesser Celandine, one of the most beautiful spring flowers, which will continue to flower well into Autumn. She collects pollen on special hairs on her rear legs, which gives them a yellow colour.

At this time of year the larger trees and bushes begin to blossom and their fragrances are now beginning to fill the air, and they contribute very much to the distinctive fragrance of the spring air. One of the most impressive of these bushes is the Flowering Currant – Ribes sanguineum – which is found throughout Wicklow in lowland areas and has beautiful flowing tresses of pink flowers.

Flowering Currant as you will see it at the moment along hedgerows and even riverbanks. Unfortunately I cannot reproduce the scent for you via the internet, but one day it may be possible, and that will be quite an adventure,
Flowering Currant as you will see it at the moment along hedgerows and even riverbanks. Unfortunately I cannot reproduce the scent for you via the internet, but one day it may be possible, and that will be quite an adventure.

Now that there is nectar to be had, keep an eye out for moths at the windows at night time. More and more are showing up, day-by-day, and one of the most common is the Hebrew Character – Orthosia gothica.

A Hebrew Character moth on a night time wall.
A Hebrew Character moth on a night time wall.