''Aculus magnirostris'' is a species of mite which causes galls on the leaves of willows (''Salix'' species). It was first described by

Alfred Nalepa Alfred Nalepa (19 December 1856, in Werschetz – 11 December 1929, in Baden bei Wien) was an Austrian zoologist specializing in the field of acarology. He studied natural sciences at the University of Vienna, and from 1886 was associated with th ...

in 1892.

Description

According to Redfern et al. (2011), the gall of ''A. magnirostris'' is similar to the gall of ''A. craspedobius'' and the mites need to be examined for firm identification. The gall of ''A. magnirostris'' is a long, 1–2 mm narrow twisted, downward roll on the leaves of eared willow ( ''S. alba''), crack willow ( ''S. fragilis'') and their hybrids in Great Britain. The gall is lined with red hairs and contains the mites. Elsewhere it has been found on Babylon willow ( ''S. babylonica'') and purple willow ( ''S. pururea''). In comparison, the galls of ''A. craspedobius'' differ by a shorter downward roll on the leaf edge. On the website ''Plant Parasites of Europe'', photographs of ''A. magnirostris'' are similar to the description for ''A. craspedobius'', but also shown is a longer downward roll in one photograph.

Distribution

''Aculus magnirostris'' has been found in Great Britain, Hungary and the Netherlands.

References

{{Taxonbar, from=Q15694183 Eriophyidae Animals described in 1892 Arachnids of Europe Taxa named by Alfred Nalepa Willow galls