Unknown caterpillar

Unknown caterpillar

Observation - Unknown caterpillar. Description: Green caterpillar with very back head and yellow 'neck' area. Approx 10mm long. Multiple found on leaves. Food plant unknown but some kind of willow family I think. Have used same plant to rear Puss moths before.

Green caterpillar with very back head and yellow 'neck' area. Approx 10mm long. Multiple found on leaves. Food plant unknown but some kind of willow family I think. Have used same plant to rear Puss moths before.