Milan, 26 October 2019
My wife and I have just come back from our annual trip to Kyoto, where I teach a two-week intensive course on sustainable industrial development. As usual, when I was not giving classes we were either visiting Kyoto or walking the ring of hills which surround the city. And as usual, we’ve been coming across a good many examples of this representative of the insect world.

This, dear readers, is the Nephila clavata, or the Joro spider. It is found throughout most of Japan, as well as in Korea, China and Taiwan. And this is the time of year when they spin their webs. They are everywhere! If you’re not careful, you will walk into the webs as you walk along, getting those silky threads all over your face. Here is an especially dense set of webs which we had to navigate.

I have to say, this species of spider is really quite striking. Look at those green and black markings! And that dark red stripe around its abdomen! I am definitely not a fan of the spider family, but even I have to admit that the Joro spider is beautiful, even if in a rather sinister sort of way. And it does spin lovely webs, the classic ones, a series of concentric circles with radiating spokes. My wife and I were lucky enough to catch this one in the morning sunlight when it was still wet with dew.

The Joro spider is a champion for matriarchal societies. The female is much bigger than the male, and it is she who sits, in deathly stillness, at the centre of the web, waiting for hapless insects to blunder into it and become her next meal.
As for the males, a couple of them will be found on the edges of the web, waiting anxiously for their chance to copulate with the female. After copulation, the female will spin an egg sack, fill it with anything from 400 to 1500 eggs, and then attach it to a tree or other suitable surface. After which, with the onset of winter, all the adults die, leaving the eggs to hatch the following May. The juveniles scatter through the underbrush and the cycle starts again.
And that’s all there is to say, really, about the Joro spider. I’m sure arachnothologists could natter on excitedly for hours about various aspects of the spider’s life cycle and behaviour but I’m assuming my readers are, like me, just ordinary folk with no more than a passing interest in spiders. So I will say no more about the Joro spider – except for one thing.
Readers may be interested to know that the Joro spider has over the centuries become one of Japan’s many yokai – these are the supernatural monsters, spirits, and demons that haunt Japanese folklore. I have this theory that it is the dominance of the female over the male along with her vivid colouration that has led to the Joro spider being turned into a yokai. The name in Japanese, Jorogumo, actually means “woman spider”. The name can also be written to mean more negatively “entangling bride” or even “whore spider”. The common role of the Jorogumo yokai in folk tales is to shapeshift into a beautiful woman who will set herself up in a cave, in the forest, or in an empty house in town, and will wait there for unwary men to pass by. She will seduce them, tie them up in her silken web, and then devour them. We have here several modern takes on these ancient storylines, with the second bordering on the pornographic.


A common finale to these folk tales is that one young man, more astute than the rest, will figure out that the beautiful woman who is trying to inveigle him is actually the dreaded entangling woman/whore spider and will take her out with a sword or other suitable weapon. Here we have a strapping samurai doing just that, in a 19th century woodblock by Utagawa Kuniyoshi.

It is interesting that a number of folk tales from other parts of the world include wicked seducing women from the supernatural world, ready to kill or otherwise neuter healthy young men. Just off the top of my head, I can think of the enchantress Circe in the Odyssey, who turned Odysseus’s men into pigs and whose plot to visit the same fate on Odysseus was foiled by the hero.

Or in the same Odyssey, we have the (female) Sirens whose beautiful songs drove (male) sailors mad and incited them to smash their ships onto the rocks.

Without getting too anthropological about it, I have to assume that these tales are a product of the patriarchal societies in which they were developed. In a strongly male-dominated society, the worst thing that can happen to a man is to find himself dominated by a woman. The best excuse a man can give to explain why this happened is for him to say that the woman seduced him. To make it an even better excuse, give the woman supernatural powers of seduction – “if she’d been a normal woman, I could have resisted her female lures”.
As I walked along, ducking out of the way of the Joro spiders’ webs, I found myself wondering how one of these tales would have been told in a matriarchal society.