Aristokles, BNJ 831 F 3b (=Stobaios, Florides 4.20 b74)
“In the second book of his Wonders, Aristokles has this: A young man named Aristonymos, an Ephesian of a noble family, was Demostratos’ son, but in reality he was Ares’ son.
In the middle of the night, because he hated all women, he went to his father’s herd and had sex with a female donkey. She got pregnant and gave birth to the most beautiful girl, named Onoskelia, a nickname borrowed from the way she was born.”
“Aristonomos the son of Demostratos hated women and used to have sex with a donkey. After some time, the donkey gave birth to an extremely beautiful girl named Onoskelis. Aristokles reports this in the second book of his Unbelievable Things.
Fulvius Stellus used to have sex with a horse because he hated women. Eventually the horse gave birth to a fine-looking girl and they named her Epona. She is a deity who focuses on horses. This is according to Agesilaus in the third book of his Italian Matters.”