Exploring the Lily's every morning you might find the house guest. Arum lily frogs, also known as the Horstock’s arum-frog or Horstock’s reed frogs, are a species of frogs belonging to the Hyperoliidae family. They are called Arum Lily Frogs because they are often found hiding at the bottom of the Arum lilies. Painted on an iPhone using the Procreate app. Dimensions: 890px wide by 626px high