97CC6 Io changed into a cow: to avoid detection by Juno, Jupiter changes Io into a cow (Ovid, Metamorphoses I 611)
97CC61 Juno appoints Argus to watch the cow (Io metamorphosed) 97CC62 Io as a cow watched by Argus 97CC63 Jupiter orders Mercury to kill Argus 97CC64 Mercury lulls Argus into sleep by making music 97CC65 Io, still as a cow, is pursued by a gad-fly