We try to reconstruct a robust backbone tree of holometabolous insects based on extensive transcriptome/genome data. With our transcriptome data we cover all orders within these group of insects and optimize the procedures of tree inference based on these data. Additionally, Rolf Beutel's group is providing extensive 3D morphological data of head, thorax and abdominal structures. Together we are working on the most extensive morphological and molecular data addressing the above mentioned phylogenetic questions. Within this project we have also started to specifically address the "Strepsiptera…