Phytomyza montana Groschke, 1957

Diptera, Agromyzidae

mine

Exceptionally long, upper-surface corridor, very narrow at first, gradually widening. In the end the corridor may traverse a large leaf, crossing itsself now and then. Frass very variable, either in pearl chains of tiny granules or in large, widely dispersed grains. Pupation outside the mine, exit slit in upper epidermis.

hostplants

Asteraceae, monophagous

Cyanus montanus.

Maček (1999a) adds: Centaurea nigrescens subsp. vochinensis and Cyanus triumfettii.

mod 28.vi.2017