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  3. Latrodectus hasselti

Latrodectus hasselti

Basic information
Scientific name Latrodectus hasselti

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セアカゴケグモ
Common names redback widow spider
Higher taxon Theridiidae, Araneae, Arachnida, Arthropoda
Natural range Possibly Australia, but ambiguous
Habitat
Invasion information
Range in Japan Recorded in All prefectures except 3 prefectures (Aomori, Akita and Nagano prefs). Abundant in Kinki and Tokai District (central Japan). Range in Japan
Origin Unknown.
Date The first record was in 1995.
Route Accidental: With building material or some other transportation.
Impact Venomous.
Regulation in Japan Import, transport and keeping are legally restricted in Japan.
Introduced range in other countries USA, etc.
Reference Notes
  • Ikeda (supervising) DECO (ed) (2006) Dictionary of Alien Species. Tokyo-Shoseki. (in Jpn)
  • Murakami & Washitani (supervising) Ecol. Soc. Japan (ed) (2002) Handbook of Alien Species in Japan. Chijin-Shokan. (in Jpn)
  • Ori et al. (1996) Introduction of widow spiders into Japan. Med Entomol Zool. 47(2):111-119. (English abstract)
  • Taki (supervising) JWRC (ed) (2008) A Photographic Guide to the Invasive Alien Species in Japan. Heibonsha. (in Jpn)
  • etc.
100 of the Japan’s Worst Invasive Alien Species