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An illustration based on the real animal.
A little discovery to share.
The Joro spider spins golden silk for its web.
THE REAL WORLD
The real Joro spider
- Scientific name
- Trichonephila clavata
- Japanese name
- ジョロウグモ
- Group
- Tiny animals
- Class
- Arachnida
- Order
- Araneae
- Family
- Araneidae
- Genus
- Trichonephila
A spider found in many kinds of places, from around houses to grasslands, woods and mountains.
Females are much bigger than males, and the shape and pattern of the abdomen vary a lot.
It builds a round web and strings extra threads in front of and behind it, making a layered web.
How the Joro spider lives
It catches and eats insects. In autumn it matures and lays a white egg sac on places such as tree bark. The eggs hatch the following spring, and the spiderlings molt as they grow into adults.
国土交通省九州地方整備局Basic data
- Size
- Body length: females 17–30 mm, males 6–13 mm
- Range
- Honshu, Shikoku, Kyushu and northern Nansei Islands
Where the Joro spider has been recorded

Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF
Watch wild animals from a distance. Do not touch or feed them, and take care of the places where they live.
Names around the world
- 日本語
- ジョロウグモ
- 简体中文
- 棒络新妇
- 繁體中文
- 棒絡新婦
- 한국어
- 무당거미
- Español
- Araña asiática joro
Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.
Sources and how we check
- まちだエコライフ推進公社 — まちだのいきものたち ジョロウグモChecked: 2026-11-03
- 守山市 — 美崎公園とその周辺の自然(クモのなかま)Checked: 2026-11-03
- 国土交通省九州地方整備局 — ジョロウグモChecked: 2026-11-05
We check each fact against its source. The illustrations simplify how the real animal looks.
The classification (class, order, family, genus) follows Wikidata records, checked against GBIF. Classifications can change as research goes on.
The basic data are the values given in each source. They vary with how the animal is measured, whether it is male or female, and whether it lives in the wild or in captivity.
This page was translated from the original Japanese with the help of AI.
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