Diarrhegma

Diarrhegma is a genus of tephritid or fruit flies in the family Tephritidae. There are two species: Males offer a nuptial feeding gift to females in courtship. The secrete a foamy material from the mouth onto a leaf substrate which attracts the female. The male copulates after the female accepts the gift and begins to feed on it.
 * Diarrhegma modestum (Fabricius, 1805) - India, Sri Lanka
 * Diarrhegma paritii (Doleschall, 1856)  - Southeast Asia - Vietnam, Thailand, West Malaysia, Singapore, Borneo, Indonesia (Java, Sumba) and southern Philippines Philippines (Mindanao, Palawan);