Male recovery and loss of females for small and large batches of Glossina palpalis gambiensis pupae that were sorted with the Near Infrared Pupal Sex Sorter (NIRPSS) at the Insect Pest Control Laboratory (IPCL) and the Scientica (SAS). Each box shows the group median separating the 25th and 75th quartiles, bars indicate maximum and minimum values, circles indicate the outliers.