Neighbor joining trees based on COI sequences of Niphargus fontanus with N. boskovici as outgroup (A) and without outgroup (B). Bootstrap values (only values >50 %) are based on 3.000 iterations. C Bayesian tree based on COI sequences of Niphargus fontanus using Beast v. 2.5 (Bouckaert et al. 2014) and a relaxed clock log normal setting with a clock-rate of 0.0177 (Papadopoulou et al. 2010). The 13 genetic lineages defined via the haplotype network are indicated by the bars besides the trees.