Colour polymorphism in nymphs of the genus Eupteryx (Hemiptera: Cicadellidae)

Abstract.

• 1 The colour morphs of fourth and fifth instar nymphs of E. cyclops and E. urticae are described and their geographic distributions in southeast Wales are examined.
• 2 Morph frequencies are influenced by Chalarus parasites (Diptera: Pipunculidae).