As long ago as 1839 C. L. KOCH described and pictured a mite which he found on several occasions in stables and hay-barns. As he was impressed by the beauty of the animal, he gave it the name Cheyletus venustissimus. But KOCH overlooked the fact that already in 1794 a description of the same mite had been published by SHAW with the name Acarus lepidopterorum (lepidopterine mite). Shaw collected it from a """"Phalaena""""; he found many mites clinging to the underside of the wings. Since KOCH (1839) many other authors mentioned the mite in literature using the name venustissimus. A. C. OUDEMANS also used venustissimus in his 1907 paper (p. 144—153, figs. 37—39), but when making the studies for his Kritisch Historisch Overzicht II (1929 : 298—300, fig. 84), he discovered Shaw’s publication of 1794. Shaw gave an extensive Latin and English description, as well as a drawing which was very accurate in comparison with other figures of those years.