Rolf G. Beutel

TL;DR: It is found that characters of the tentorium and mandibles in particular, but also some other head structures, have apparently not evolved independently, and thus can cause artifacts in tree reconstruction, and suggest that modified weighting (or exclusion of characters) in cases of formally identified correlated cliques of characters may improve morphology-based tree reconstruction.

TL;DR: The character combination found in different zorapteran species supports the view that the sperm, a very compact functional unit, does not evolve as a unit, but like in other more complex body regions, sperm components can also be modified independently from each other.

TL;DR: A species-level phylogeny and more investigations of the reproductive system should have high priority and a clade Zoraptera + Dermaptera as sister group of all other polyneopteran orders is tentatively suggested.

TL;DR: The basal position of Orchymontiinae and Prosthetopinae suggests a Gondwanan origin of Hydraenidae and a primary preference for life in running water.

TL;DR: Ulastructural features of different species support two strikingly different models of male and female reproductive apparatus in the small order Zoraptera, likely that sexual selection played a decisive role in the evolution of the reproductive system.