Insects are one of the most species-rich groups of metazoan organisms. They play a pivotal role in most non-marine ecosystems and many insect species are of enormous economical and medical importance.
The anomaly zone, defined by the presence of gene tree topologies that are more probable than the true species tree, presents a major challenge to the accurate resolution of many parts of the Tree of
Phylogeny, taxonomics, and ovipositor length variation of the Pteromalus albipennis species group (Hymenoptera: Chalcidoidea: Pteromalidae: Pteromalinae)
