Aceria cornuta (Reuter, 1890)

on grasses

cf Acerian cornuta on Schedonorus pratensis

Schedonorus pratensis, GH Luxemburg, RN Schlammwiss, 17.vii.2019 © Sébastien Carbonelle: healthy and infected inflorescence

gall

The inflorescence is more or less disfigured, parts of the spikelets are leaflike.

host plants

Poacea, oligophagous

Agrostis stolonifera; Alopecurus pratensis; Avenula pubescens; Elymus; Elytrigia repens; Leymus arenarius; Phleum pratense; Poa bulbosa, pratensis; Schedonorus arundinaceus, pratensis; Sesleria caerulea.

notes

This mite species is often encountered together with Aceria tenuis; they live primarily in the length grooves over the leaves. The relationship between both species, and their contribution to the galling of the host plant, is not clear.

synonyms

Eriophyes cornutus.

references

Buhr (1964a, 1965a), Dauphin & Aniotsbehere (1997a), Houard (1908a), Reuter (1900a, 1902a), Roivainen (1950a), Roskam (2009a), Tomasi (2014a).

mod 13.ix.2019