| cytogenetics analysis and testis morphology of aquatic species of the families belostomatidae, gelastocoridae, gerridae, notonectidae, and veliidae (heteroptera). | the heteroptera have holocentric chromosomes with kinetic activity restricted to the end of chromosomes. the first meiotic division is reductional for the autosomes and equational for the sexual. only a few species of this suborder have been analyzed. in this study, we observed the morphologies of the testes of the heteroptera species belostoma anurum (herrich-schäffer, 1948), belostoma micantulum (stal, 1858), gelastocoris angulatus (melin, 1929), gelastocoris flavus flavus (guérin-méneville, 1 ... | 2015 | 25797798 |