The terrestial flatworm, Artioposthia triangulata, is a native of New Zealand. Occasional incidences have been reported in Europe, which were presumably introduced on imported plants from New Zealand. The first record of it in Ireland was in a County Antrim garden in 1963. In recent years there has been a number of isolated occurences within the State.
The flatworm feeds on the common earthworm. My Department, Teagasc and the Department of Agriculture in Northern Ireland have been keeping a general monitor on the position relating to the New Zealand flatworm and on its movement. There is no evidence that it has caused any noticeable diminution in the general earthworm population. The position will continue to be kept under observation.