Phylogenetic tree (50% majority-rule consensus) based on Bayesian Inference (MrBayes 3.1.2) of Dictyocoela spp. based on the small subunit ribosomal gene. Numbers at the nodes are Bayesian posterior probabilities. Spaguea lopii, Kabatana takedai, Nosema granulosis, Thelohania parastaci, Pleistophra mulleri, P. typicalius, Glugea anomala, and Loma acerinae were used as an outgroup for Dictyocoela spp. based on the results of Krebes et al. (2010).