Microstructure_template.scad is a template to build artificial microstructure at a factor scale of 300, mimicking one ramus and its sensilla of a pectinate antenna of a male Samia cynthia moth. RS1 and RS1 middle are raw data from a high-speed camera that we recorded at the velocities indicated in the folders. The fluid was rapeseed oil which has a kinematic viscosity of 50 mm/s² at 29°C. Wall_effects is a FEM simulation to determine wall effects that we had in our experiment with the artificial microstructure. The Matlab code Microstructure_capture was then used to determine the mass transfer of pheromone on a microstructure in an infinite puff.