Food Plant: Rhamnus cathartica (Buckthorn)

Egg: Underside of leaf

Mine: June - July, September - October

Notes: The gallery is contorted in a series of S turns. The frass is initailly cloudy but then darker green being either dispersed or coiled (as shown). A little area of uneaten leaf is between each traverse. Finally the frass turns black and is deposited in a central line. The larva is greenish yellow, head pale brown.

Data: 17.x.2009, Harpswell, Lincolnshire VC54

Image:© Martin Gray