This image is not available for purchase in your country.

Lighthouse galls on Glechoma hederacea

Lighthouse galls on Glechoma hederacea

C014/8071

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY

Caption

Lighthouse galls on the upper surface of leaves of ground ivy (Glechoma hederacea), The galling is caused by the larva of the gall midge, Rondaniola bursaria, one of which is present inside each gall. The presence of the feeding larva represents a nutrient sink to the plant, which results in increased cell division and localised growth. The precise mechanism by which galls form remains a matter for conjecture.The larva feeds until late summer, at which point the whole gall falls to the ground, leaving a hole in the leaf. The insect pupates and overwinters in the fallen gall.The picture, taken in September in the UK, shows several galls standing clear of the surface of the leaf, the basis of the common name, lighthouse gall. Each is covered with hairs, thought to deter predators. In several places, holes are present in the leaf where mature galls have already detached.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}