Shinobi Ageha

are species of butterflies in Jiraiya's novel, read by Tsunade in her Infinite Tsukuyomi dream.

Overview
In a warm season, they usually appear near the village where Kaya and her family lived. According to Tsunade, the butterflies' powdery scales stimulate the flow of chakra and are therefore used as an ingredient in Military Rations Pills.

They also seem to be directly related to the usage of the Masked Man's Eight Trigrams Grid Palm technique, as both Hinata and Neji Hyūga noticed a presence of chakra, and during every encounter with them, the jōnin were affected by the technique.

Trivia

 * is the Japanese name of the "swallowtail butterflies".
 * When Konan used her Dance of the Shikigami technique to guide the genin to the whereabouts of their team leaders, her butterflies took on the form of Shinobi Ageha.