Synanthedon tipuliformis

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Synanthedon tipuliformis on Ribes (click on image to enlarge it)
Author(s): Whitney Cranshaw, Colorado State University
Source: Wikimedia Commons

Synanthedon tipuliformis (Clerck) - (currant borer)

The caterpillars tunnel in the stems of currant and occasionally also those of gooseberry, grapevines and other crops and plants. They weaken the stems and branches which die off. The whole plant may die due to secondary fungal infections. The species is native to Europe, but has been introduced into other regions.

The moth has one generation per year. Eggs are laid singly on the bark of host plants. The larvae bore into the branches through cracks and wounds and feed on the pith. They overwinter in the plant and complete development and pupation in spring.

Vernacular names
• Deutsch: Johannisbeerglasflügler
Schnakenglasflügler
• English: currant borer
currant clearwing moth
• Español: sesia del grosellero
• Français: sésie du groseilleir

The adult has a wingspan of 10-20 mm. The wings are transparent except for the margins which are blueish-black. The tips have some reddish or yellowish marks. The thorax is black with some yellow lateral marks. The abdomen is also black with 3 or 4 yellow rings. The position of the rings is different in males and females.

Synonyms:
Sesia tipuliformis
Ramosia tipuliformis
Aegeria tipuliformis