A chance to see females who have males for breakfast…

Spiders’ webs come into view at this time of year, strung between grasses, dead flower heads, or washing lines; improbable distances joined by fine threads, linked to form carefully designed webs, visible only when caught by early morning dew or frost. Have you watched fishermen preparing their nets before leaving harbour? Imagine spider webs as fishing nets, carefully crafted to maximise their catch… for that is what they are. Thinking this, I realise outside my front door, there is a major harvesting operation going on.

Female wasp spider with prey, she has trapped in a cocoon of silk

Wasp spiders are great spiders to spot. We have many species of spiders in the UK, and they are often difficult to identify, beyond knowing, by virtue of their 8 legs, that they are a spider. However, wasp spiders can be both easily spotted, and identified, thanks to their bright yellow and black stripes and unique (for the UK) web design. This species of spider are fairly new to the UK, the first being seen in Rye in 1922, but are now fairly common across the south of England.

Wasp spider webs have a zigzag of white threads from the centre. The fuzzy bundle at the top of the zigzag is prey that was deceived by the light from these threads and trapped.

Wasp spiders’ colouring is to protect themselves from potential predators by deceiving predators into thinking they have a wasp like sting. As well as looking out for the bright black and yellow body of the female, also look for the zigzag white threads in the web, which is unique to this species in the UK. The purpose of these threads is debated; it is possible they reflect UV light and so attract the attention of flies, bees and moths, who are drawn in, mistakenly thinking that the light comes from flowers.

Grasshoppers are wasp spiders idea of dinner

Wasp spiders’ favourite food is grasshoppers, so to find these spiders, look in grassland that has not yet been cut so still has plenty of grasshoppers. As I watched the spider that prompted this post, a grasshopper bounced into her web. She whipped across and rapidly wrapped the unfortunate creature with silk she exuded from her body so it could not escape. Her dinner sorted!

Males often have a hard time in the spider world and this is certainly so for male wasp spiders. Male wasp spiders are much smaller than the females, and are inconspicuous brown creatures. When they try to mate with a female they take their life in their hands: a female is quite capable of eating them alive as they are mating! So a male hangs about on the edge of a web, trying to pick the moment when a female is mature, as then her jaws are soft, and he has a chance of surviving her bite – many don’t make it… (Thanks to Buglife for this information!)

Try working out how many different species of spider there are in a patch of garden or land near you. Our attention is often drawn to spider webs, not so often to the spiders who make them. When you see a web, often a spider is not immediately visible. Start taking a look around the edge of webs and you will see all sorts of different spider species, of different sizes and shapes, often with intricate markings.

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One thought on “A chance to see females who have males for breakfast…

  1. Nicole Buijsse 14th Sep 2020 / 8:02 am

    Thank you Jo for making it so interesting!
    It continues to delight!!!
    Lots of Love,
    Nicole
    (On virtual retreat this week)

    Sent from my iPhone

    Like

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