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. 2018 Oct 23;5:180239. doi: 10.1038/sdata.2018.239

Figure 4. The spread and distribution in 10 km squares in Britain, the Channel Islands and Ireland of Harmonia axyridis from 2003 to 2016.

Figure 4

NB where H. axyridis was recorded in a square in multiple time periods, the older time period overlays the newer one(s).