Friday, 8 May 2020

Spider observations, and a new species for me

The garden seems to be full of spiders. The compost heap and all the paving is alive with some type of wolf spiders, and possibly more than one specie of them. I tidied the garden cupboard and evicted many 'house' spiders and most of the plant pots and trays which were hanging around on the patio have had a spider or two in them. A walk through the garden disturbs nursery web spiders. The house is still full of Pholcus phalangioides. The Golden Girl Araneus diadematus on my living room window frame survived the winter, then one day, she had disappeared, hopefully out to find food.

Strenuously brushing off some moulded plastic plant trays ready for reuse yesterday evening, their undersides full of snails, I found I'd also brushed out an egg mass in a case, which had torn. Out of the case emerged a slightly agitated female spider, so large (18-20 mm) when she uncurled, she made me jump. She was quite shy, very attached to her eggs, so I gathered them up to have a closer look.


Could this be Steatoda nobilis, the Noble False Widow? (Yes, the same one the press get so hysterical about, with horror stories of infected and necrotic bites.) I asked in the British Spider Identification group and it was confirmed. After all this time, when I'd never seen one, and if the females are this big, I'm sure I would have noticed! Come to think of it, if she has eggs, there's probably a male around, unless she's eaten him (apparently they do, sometimes). They seem to be getting more common and widespread, and this wouldn't be the first Pembrokeshire record for the species.

So, a new spider for my list. Except I don't have a list, so now I want to start one. I haven't been taking much notice of the spiders in the garden, but it would be good to identify what's here. The spider ID group is full of photos of jumping and crab spiders, to the extent where I have spider envy, as I haven't seen any here. But then, I also haven't been looking.

Meanwhile, I'll have to find this big mama a new niche, as she can't go back under the plant tray.