Fig. 6: 3D-reconstruction of the tracheal system of E. horridus and P. humanus capitis.

A Body of a female E. horridus from dorsal view including cuticle (grey and half transparent) and tracheal system (gold). B Isolated tracheal system of E. horridus (gold) from dorsal view. C Body of a female P. humanus capitis from dorsal view including cuticle (grey and half transparent) and tracheal system (gold). D Isolated tracheal system of P. humanus capitis (gold) from dorsal view.