Little is know of Guyon who was related to a Hungarian General. He lived at both Richmond and Ventnor, in the Isle of Wight, and published notes on entomology, particularly Coleoptera, for some thirty years from 1845. These included 'Tenacity of life in Curculionidae', Zoo., 3, 1845, 1145; Note on Lamia textr, ibid., 8, 1850, 2961; several notes on aberrant forms; 'Larvae of the glow worm', ibid., 20, 1862, 8180; and 'The Colorado Beetle', Sci. Gossip., 11, 1875, 142.