Synanthedon tipuliformis Clerck Currant clearwing moth

Infestations of this pest occur mainly on black currant; other closely related hosts, including gooseberry, are also attacked. The larvae bore within the pith of branches. Damaged branches often break off, especially in strong winds and if weighed down with ice (e.g. that formed on bushes during early-spring frost protection measures) or with maturing fruit.

BIOLOGY

Moths are active in sunny weather in June and July. They fly rapidly within black currant plantations and often visit nearby flowers to feed on nectar. Eggs are laid singly on the stems of host plants and hatch in approximately 10 days. The larvae then bore into the central pith to feed. They complete their development in the following spring and then pupate just beneath the bark.

DESCRIPTION

Adult 17-21 mm wingspan; body mainly metallic bluish-black, with narrow yellow cross-bands on the abdomen; wings mainly hyaline and scale-less, but venation and borders brownish-black (see Fig. 117). Larva up to 15mm long; body creamish-white; head light brown.

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