Who Is the Jorogumo? Spider Woman Tales From Edo Books to Joren Falls

A woodcutter sits down to rest beside a waterfall in the mountains of the Izu Peninsula. Something light tightens around his ankle, a thread so fine he almost misses it. He slips it off and winds it around a tree stump. A moment later the stump is dragged into the pool.

That scene belongs to the jorogumo, a figure who is part spider and part woman. People tell it as if it were one old story, but the record is split. Some tales sit in printed books from the 1600s and 1700s. The waterfall legend is told in Shizuoka today, and the earliest record of it that we could confirm is a modern one.

The name and the animal

The name is usually written with characters that suggest an "entangling new bride." That spelling is a decorative reading: it matches the sense of the word, not its sounds. The plain older form means "woman spider," and it says what the creature is, a spider able to take the shape of a beautiful woman.

There is also a real spider with the same name, Trichonephila clavata, called the joro spider in English. Biologists write its name in katakana to keep it apart from the tale figure. We found no source showing that one caused the other, so this page treats them as two subjects.

The earliest printed tales

Two Edo-period books give the oldest tales that reference works connect to the jorogumo. Both are collections of strange stories printed for readers. Neither is a record of worship, and neither is a village record made by a folklorist.

The date of Tonoigusa comes from a National Diet Library catalog note on a later reprint that reused its printing blocks. The date of Taihei Hyakumonogatari comes from the Library's own record of the book. The summaries of the two tales come from reference works, not from my reading of the old text.

The shared pattern matters. In both books the woman's human look is a trick, and the spider is exposed at the end. In the 1732 tale nobody dies at all.

The waterfall at Joren

Joren Falls lies in Izu city, Shizuoka Prefecture, in the central part of the peninsula. The Izu Peninsula Geopark lists it as a geosite and describes the drop as the edge of a lava flow from a volcanic eruption about 17,000 years ago, with columns of cooled rock standing beside the water.

The legend of the spider at the pool has several versions:

• A traveler resting by the falls finds threads on his legs, ties them to a stump, and sees the stump pulled under.
• A woodcutter drops his axe in the pool, meets a woman who returns it and asks him to keep quiet, and later tells the secret while drunk. He dies in his sleep or is found drowned.
• A woodcutter who loves the woman is drawn into the falls by a thread. A monk drives the threads off once, but not for good.

Where is the oldest record? The Library's reference librarians found the Joren legend in the Shizuoka prefectural history named above, so a printed record from the late twentieth century is confirmed. We did not find an Edo-period text for it. The Geopark's reference list cites a 2012 paper by Tateishi Nobuhiro on how the "spider pool" (kumo-buchi) legend formed at Joren Falls. We have not read it, so we cannot say what it concludes.

Sekien and the picture

Toriyama Sekien published Gazu Hyakki Yagyo in 1776, the first of four yokai picture books he made. Reference works describe his jorogumo as a spider woman handling small fire-breathing spiders. It is an image of a figure, not a story, and later writers often fill the silence with plots of their own.

How to read a jorogumo tale

Ask five questions before you trust a retelling:

1. Which book or collector recorded it, and in what year?
2. Is the setting a pool, an attic, or a house that vanishes? Those are the places the tales above use.
3. Does the woman turn out to be a spider at the end, as in the two Edo books?
4. Does anyone die? In the 1677 tale the dead are found afterward, while in the 1732 tale the man simply wakes.
5. Is a musical instrument part of the plot? If so, ask where that detail first appears.

Common mistakes and mix-ups

• The lute seduction. A popular retelling has a beautiful woman charm a man with a lute and then eat him. The National Diet Library's reference service looked for a classical source for exactly that plot and found none. The two Edo tales differ, and so do the others it checked. Treat the plot as unverified.
• The earth spider. The giant spider of the medieval tales of Raiko is the tsuchigumo, a separate figure. Reference works describe a 14th-century picture scroll and a 15th-century Noh play about it. They do not say the two are the same being.
• The real spider. A garden spider with this name is a living animal, not a spirit.
• Worship. No source we read describes the jorogumo as honored at a shrine or temple. It is folklore and literature.

What exists today

As a religious practice, nothing: the sources we read describe no shrine, ritual or festival for this figure. As folklore, the Joren Falls legend is still told, and the falls are a visited scenic site.

The jorogumo belongs with other disguised figures of Japanese tale books, such as the Rokurokubi, and with the wider habit of telling Yurei stories at night. The honest summary is short: two Edo books, one 1776 picture, and a waterfall legend written down in modern times.