''Rabdophaga albipennis'' is a gall midge which forms

gall Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to be ...

s on the shoots of white willow ('' Salix alba'').

Description

The gall is a slight swelling on a twig just below a bud on white willow (''Salix alba''). Inside the gall is a reddish-orange larvae which later makes an emergence hole in the twig or bud and overwinters in the gall.

Distribution

The insect or gall has been found in Great Britain and Italy.

References

albipennis Nematoceran flies of Europe Gall-inducing insects Insects described in 1850 Taxa named by Hermann Loew Willow galls {{Bibionomorpha-stub