Plant Parasites of Europe

leafminers, galls and fungi

Abacarus hystrix

Abacarus hystrix (Nalepa, 1896)

cereal rust mite

on grasses

Abacarus hystrix on Triticum aestivum

Triticum aestivum, Hungary, Mosonmagyaróvár, © László Érsek

Abacarus hystrix on Triticum aestivum


Abacarus hystrix on Triticum aestivum

mites in unfolded gall

Abacarus hystrix on Hordeum vulgare

Hordeum vulgare, Hungary, Mosonmagyaróvár, 20.v.2020 © László Érsek

Abacarus hystrix on Hordeum vulgare

section through a gall

cf Abacarus hystrix on Elytrigia repens

Elytrigia repens, France, dép. Pas-de-Calais, Oye-Plage, RN Platier d’Oye x.2018 © Sébastien Carbonelle

cf Abacarus hystrix on Elytrigia repens



the mites live between the length ridges on the upper side of the leaves. The leaves turn pale greyish green, and are incompletely unfolded.

host plants

Poaceae, oligophagous

Agropyron cristatum; Agrostis capillaris, gigantea; stolonifera; Alopecurus pratensis; Anisantha sterilis, tectorum; Apera spica-venti; Arrhenatherum elatius; Avena sativa; Avenula pubescens; Bromopsis erecta, inermis, ramosa; Bromus hordeaceus; Calamagrostis arundinacea, epigeios; Ceratochloa carinata; Corynephorus canescens; Dactylis glomerata; Elytrgia repens; Festuca ovina, rubra; Festulolium braunii, loliaceum; Helictochloa pratensis; Holcus lanatus; Hordeum brevisubulatum, murinum, vulgare; Leymus arenarius; Lolium x hybridum, multiflorum, perenne; Melica nutans, uniflora; Ochlopoa annua; Phalaroides arundinacea; Phleum pratense; Poa angustifolia, pratensis; Puccinellia distans; Schedonorus arundinaceus, giganteus, pratensis; Sesleria caerulea; Triticale rimpaui; Triticum aestivum.

Often op Elytrigia repens.


Callyntrotus, Phytocoptes, hystrix.


during the last 50 years the number of described gall-mites has considerably increased, and this applies in particular for grass-inhabitants. Many are not symptomatic, therefore not treated in this website. Even more than for other groups of plants one should realise that for grasses the combination plant species + symptom is insufficient for a reliable identification.

Moreover, DNA-analysis has demonstrated that “A. hystrix” actually is a complex of a number of species (Skoracka & Dabert, 2010a).


Boczek (1964a), Boczek & Petanović (1996a), Buhr (1964b), Denizhan (2011a), Denizhan, Monfreda, de Lillo & Çobanoğlu (2015a), Farkas (1965a), Houard (1908a), Keifer, Baker, Kono ao (1982a), Kiedrowicz, Rector, Denizhan ao (2014a), Kozlowski (2001a), Laska, Majer, Szydło ao (2018a), Petanović & Stanković (1999a), Rector, Czarnoleski, Skoracka & Lembicz (2016a), Ripka (2007a, 2009b, 2011b), Roivaianen (1947a, 1950a, 1951a), Roskam (2019a), Skoracka (2006a), Skoracka & Dabert (2010a), Skoracka, Lewandowski & Boczek (2005a), Tomasi (2014a).

Last modified 18.iv.2024