Lehmannia valentiana

Basic information
Scientific name	Lehmannia valentiana	Click to magnify
Major synonym	Limax marginatus
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.
Origin	Unknown.
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. Native organism(s) affected: 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) http://www.pps.go.jp/law_active/Notification/basis/5/245/html/245.html (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) http://idtools.org/id/mollusc/index.php
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.