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  3. Lehmannia valentiana

Lehmannia valentiana

Basic information
Scientific name Lehmannia valentiana

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Common names Threeband gardenslug, greenhouse slug
Higher taxon Limacidae, Stylommatophora, Gastropoda, Mollusca
Natural range Iberian Peninsula
Habitat Around human habitat, grass land, farm area, etc.
Invasion information
Range in Japan Honshu, Shikoku, and Kyushu Islands. Range in Japan
Date Possibly late 1950s (details unknown).
Route Accidental: Possibly hitchhiking on U. S. military transport. Spread within Japan appear to be by hitchhiking on transports of plants.
Impact Damage on agriculture and home garden.
Affected organism: Crops, cultured plants, etc.
Regulation in Japan Limacidae is designated as a Quarantine Pest (the Plant Protection Law).
Introduced range in other countries Worldwide
Reference Notes
  • Ecol Soc Japan (ed) (2002) Handbook of Alien Species in Japan. Chijin-Shokan. (in Jpn)
  • Hiramatsu et al. (2006) Investigation of distribution pattern of the tree slug, Lehmannia valentiana (Ferussac), using meta-aldehyde traps in an abndoned tunnel. Jpn J Environ Entomol. 17(1), 23-28 (in Jpn with English abst)
  • Plant Protection Station (2011) The Plant Protection Act. Quarantine Pest List. (Accessed on 2012-5-16) (in Jpn)
  • Takeuchi & Tamura (1995) Seasonal occurrence, daily activity and food utilization of three sympatric terrestrial gastropods. House and Household Pests. 17(1), 11-23 (in Jpn with English abst)
  • Terrestrial Mollusc Tool (Accessed on 2012-6-06)
  • Udaka et al. (2008) Effect of photoperiod and acclimation temperature on heat and cold tolerance in the terrestrial slug, Lehmannia valentiana (Pulmonata: Limacidae). Appl Entomol Zool. 43(4):547-551
  • etc.
100 of the Japan’s Worst Invasive Alien Species

In the most part of mainland of Japan (Honshu, Shikoku, and Kyushu), another European slug Limax flavus had infested from late 19C to 1960s. Lehmannia valentiana and Lh. nyctelia established after W.W.II and have spread with displacing Li. flavus.