Psylla alni (Linnaeus, 1758)

Material: 23 ♂♂, 21 ♀♀; [29]: 4 Oct 2011, 14 Jun 2012, on Alnus glutinosa, leg. AK; Dolina Sąspowska, 31 May 2012, on Alnus glutinosa and Am, leg. AK.