Mangora acalypha new to Finland, with notes on other araneid species spreading northwards (Araneae, Araneidae)

Two specimens of Mangora acalypha (Walckenaer, 1802) were found in a rich pine fen in Hammarland on the Aland Islands in 2015. The possible connection of global climate change with five recently (within the last 15 years) recorded araneid species as new to Finland is discussed. These are, in addition to M. acalypha, Agalenatea redii (Scopoli, 1763), Argiope bruennichi (Scopoli, 1772), Larinioides sclopetarius (Clerck, 1757), Neoscona adianta (Walckenaer, 1802).