Rabdophaga repenticornua explained

Rabdophaga repenticornua is a gall midge which forms galls on the buds of creeping willow (Salix repens).

Description

The female fly lays an egg in the bud of Salix repens. The solitary, orange larva feeds within the bud which grows into a 13 mm long, horn-like, reddish tube which tapers to the tip.^[1] Development of the larva probably takes two years.^[2]

Distribution

The gall has been found in Scotland.^[1]

Notes and References

1. Book: Redfern. Margaret. Shirley. Peter. Bloxham. Michael. British Plant Galls. 2011. FSC Publications. Shrewsbury. 978-1-85153-284-1. 282–299. Second.
2. Web site: Ellis. W N. Rabdophaga repenticornua. Plant Parasites of Europe. 2 January 2018.