Asphondylia photiniae

North American-inducing insect

Asphondylia photiniae, also known as the toyon fruit gall midge or toyon berry gall midge, is a species of midge that induces galls on the developing berries of the toyon bush in North America. Galled berries stay green and look somewhat warped. Each galled berry contains a single larva, which emerges in spring. This midge is known from the Californias, where native Heteromeles arbutifolia grows in relative abundance.

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