About Cacoxenus indagator Loew, 1858
Cacoxenus indagator is a species of fruit fly that is native to central and southern Europe. This species is a kleptoparasite; it lays its eggs inside the pollen-filled nest cells of mason bees. Because newly hatched individuals of this species are able to break out of these sealed nest cells, the species is commonly referred to as the Houdini fly.