Hemerocallis Gall Midge

Contarinia quinquenotata

Contarinia quinquenotata is a small midge which infests the flower buds of Hemerocallis, causing the buds to swell, remain closed and rot. It is a pest in several parts of the world. It is known by the common names of daylily gall midge and hemerocallis gall midge.

Scientific name

Contarinia quinquenotata

Family

Cecidomyiidae