Dytiscus semisulcatus

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This species has been recorded at locations shown on this map.

See below for details of individual records.



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Red dots on the maps indicate individual records with an accuracy of 1 km or better. Black squares are centred in those 10 km squares of the national grid in which there is at least one record at 10 km accuracy.

Date Gridref Site Quantity Recorder Comment
01/06/1922 NR3060 Islay (unspecified location) 0 Balfour-Browne
01/05/1984 NR38 Colonsay (south) 0 Foster, G.N., Eyre, M.D., et al. (Balfour- Browne Club). More frequent as adults than D.marginalis with its easily recognised larvae common in the spring in shallow water.
01/05/1984 NR27 Rhinns (north): Sanaig to Ardnave 0 Foster, G.N., Eyre, M.D., et al. (Balfour- Browne Club). More frequent as adults than D.marginalis with its easily recognised larvae common in the spring in shallow water.
01/05/1984 NR44 Islay (south-east): Lagavulin to Kildalton 0 Foster, G.N., Eyre, M.D., et al. (Balfour- Browne Club). More frequent as adults than D.marginalis with its easily recognised larvae common in the spring in shallow water.
01/05/1984 NR37 Islay (north): Killinallan to Bolsay 0 Foster, G.N., Eyre, M.D., et al. (Balfour- Browne Club). More frequent as adults than D.marginalis with its easily recognised larvae common in the spring in shallow water.
01/05/1984 NR26 Rhinns (central): Gorm to Gruinart 0 Foster, G.N., Eyre, M.D., et al. (Balfour- Browne Club). More frequent as adults than D.marginalis with its easily recognised larvae common in the spring in shallow water.
01/05/1984 NR35 Islay (central east): Glenegedale to Bowmore 0 Foster, G.N., Eyre, M.D., et al. (Balfour- Browne Club). More frequent as adults than D.marginalis with its easily recognised larvae common in the spring in shallow water.
01/05/1984 NR34 Oa (east): Risabus to Laphroaig 0 Foster, G.N., Eyre, M.D., et al. (Balfour- Browne Club). More frequent as adults than D.marginalis with its easily recognised larvae common in the spring in shallow water.