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. The cocoons are shown and are pale ochreous in colour - the base of the cocoons are seen, where they attached to the substrate.

Data: 08.x.2010, Wicken, Cambs, VC29

Image:© Rob Edmunds