“…The head of Odonata larvae has already been studied in some detail (Tillyard, 1917;Snodgrass, 1954;Blanke, B€ usse & Machida, 2015;B€ usse et al, 2017). The majority of studies focus solely on the functional morphology of the prehensile mask (Pritchard, 1965;Olesen, 1972Olesen, , 1979Tanaka & Hisada, 1980;Parry, 1983;B€ usse et al, 2021), mouthparts kinematics and concerted movements of the mouthpart's musculature (Popham & Bevans, 1979;David et al, 2016;B€ usse et al, 2017;Quenta-Herrera et al, 2018;Koehnsen et al, 2020Koehnsen et al, , 2021 and on the material composition of the mouthpart's cuticle (B€ usse & Gorb, 2018). However, as the mentioned studies all are focused on single parts of the feeding process, a comprehensive understanding of the functional framework of the feeding process in its entirety has not been conducted so far.…”