Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Caterpillars, maggots, grubs, and similar immature insects - 1/4 inch - 1/2 inch long > Roseslug
Roseslug
Endelomyia aethiops
Jeff Hahn, University of Minnesota Extension
Jeff Hahn, University of Minnesota Extension
Description: Up to 1/2 inch long.
Where/When: Feeds on the upper surface of rose leaves between the veins. Active from mid May through June.
Significance: Feeding produces a windowpane or lacey appearance to leaves, eventually causing damaged areas to turn brown. Feeding affects the appearance of roses but rarely impacts their health.