To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S1 Female bowfly tethered elastically at the scutellum. When touched at the wing the fly starts flying. X-ray computed tomography study of the flight-adapted tracheal system in the blowfly Calliphora vicina, analysing the ventilation mechanism and flow-directing valves Lutz Thilo Wasserthal, Peter Cloetens, Rainer H. Fink, and Lennard Knut Wasserthal Journal of Experimental Biology 2018. 221:None-None; doi: 10.1242/jeb.176024 Download Original Video