Fig. 10

Slide-mounted Pemphigus populiglobuli secondary generation, previously identified as P. groenlandicus or P. groenlandicus subsp. crassicornis. A wingless viviparous female from Greenland, B wingless viviparous female from Iceland, C winged viviparous female (sexupara) from Greenland, D wingless viviparous female from Greenland, E wingless viviparous female from Spain, F wingless viviparous female from Sweden (A–C marked as P. groenlandicus, D–F marked as P. groenlandicus subsp. crassicornis). Light microscopy (LM)