Cercopis vulnerata Illiger in Rossi Red black froghopper

This widely distributed and generally common univoltine insect is a minor pest in orchards and hop gardens. The adults pierce the upper surface of the foliage to form small greenish-yellow marks that eventually turn brown. This symptom, which was once thought to be due to a fungal pathogen, is often known as 'angular leaf spot'. On pear, damage is restricted to the fruitlets and fruit stalks, these becoming marked

Fig. 183 Forewing of Cercopis vulnerata (x7).

with corky blemishes. Nymphs, each sheltered by a mass of 'spittle', develop mainly on the roots of Rumex and various other herbaceous plants. The adults (10-11 mm long), which have distinctive black and red forewings (Fig. 183) occur from May or June onwards.

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