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Tag Archives: Blood bee

Blood bees

29 Wednesday Apr 2026

Posted by sconzani in insects

≈ Comments Off on Blood bees

Tags

bees, Blood bee, British bees, cleptoparasite, kleptoparasite, kleptoparasitic wasps, kleptoparasitism, solitary bee, Sphecodes species

It’s just a week since I wrote on here that I find bees ‘tricky to photograph and even more difficult to identify and, though I don’t usually duck a challenge, bees are simply a step too far’. And then I saw a bundle of these red-and-black bees, and couldn’t help myself – they looked so lovely and distinctive that maybe, just maybe they were identifiable. So, I took some photos.

Of course, when I checked my photos later that day, it didn’t take long to discover that they’re NOT identifiable, at least not to species. I can tell you that they’re Blood bees, of the genus Sphecodes, but there are 17 species of Blood bee in the UK and they need to be examined microscopically to distinguish one from the other.

I did discover that these bees may look lovely but they have a dark side; Blood bees are kleptoparasites (or cleptoparasites). The entry on the Naturespot website explains that they are parasites of

ground-nesting solitary bees, including Halictus, Lasioglossum and Andrena. The female enters a host’s nest and breaks into the cell, killing the egg or grub. She lays one of her own eggs and reseals the cell. When the egg hatches, the grub consumes the food intended for the host species’ larva.

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More from Merthyr Mawr

09 Tuesday May 2017

Posted by sconzani in insects, nature, wildflowers

≈ Comments Off on More from Merthyr Mawr

Tags

biodiversity, biological diversity, Blood bee, Common Stork's-bill, Glamorgan Fungus Group, Green dock beetle, Merthyr Mawr National Nature Reserve, Micropterix calthella, Navelwort, Poplar leaf beetle, Red-headed Cardinal beetle

As I wrote yesterday, with very little fungi to be found our Glamorgan Fungus Group foray on Saturday developed into a more general nature ramble. I’m afraid I wasn’t writing down the names of all the various critters and plants we saw so I can’t identify everything in these photos but I can name some.

170509 (2) Pyrochroa serraticornis Red-headed Cardinal beetle
170509 (3) Centipede
170509 (4) Eggs of Gastrophysa viridula Green dock beetle
170509 (5) Micropterix calthella moths
170509 (6) Erodium cicutarium Common Stork's-bill
170509 (7) Two species of snails
170509 (8) Umbilicus rupestris Wall pennywort or Navelwort
170509 (9) Chrysomela populi Poplar leaf beetle
170509 (10) Sphecodes sp Blood bee

The first is a Red-headed cardinal beetle (Pyrochroa serraticornis), a very pretty beetle though this one wouldn’t keep still for me. The centipede was the same and I’m afraid I don’t remember its name, though I was told it’s not particularly common. It tickled! I think the little yellow dots are the eggs of the Green dock beetle (Gastrophysa viridula) as we saw a pair mating nearby. The tiny moths on the buttercup flower are Micropterix calthella. The plant with the pink flower is one I actually remembered from my botany walk on Thursday – a miracle! It’s Common Stork’s-bill (Erodium cicutarium). Then we have two different species of snail cosying up together. Once again, I was told the names but didn’t write them down and have forgotten (must do better next time!). This very pretty plant was a new one for me and it has two common names, so you might know it either as Wall pennywort or Navelwort (scientific name Umbilicus rupestris). Next is another beetle, this time a Poplar leaf beetle (Chrysomela populi). It was a gorgeous wee thing, with metallic green thorax and dark red body, almost like an oversized ladybird. And, last but not least, was this rather angry Blood bee (Sphecodes sp.). It was trying to lay its eggs in the holes of mining bees when it was netted and potted up for a quick close-up look.

170509 (1) Millipede Pill bug Slug

My favourite moment of the day, though, was when I turned over this log. I particularly loved the little grouping of millipede, pill-bug and slug but these were only a few of the various creatures to be seen. It was just nice to see such biodiversity co-existing happily together. A lesson for us all, I think.

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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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