Key to females of species Aceria known from caryophyllaceous hosts 1 Prodorsal shield without lines........................................................ Aceria silenes (Liro, 1940) - Prodorsal shield with lines.............................................................................. 2 2 Empodium 7-rayed.................................................................................... 3 - Empodium less than 7-rayed.............................................................................4 3 Seta sc 20 shorter than prodorsal shield 34.......................................... Aceria georghioui Keifer, 1959 - Seta sc 45–70 longer than prodorsal shield 32–42................................... Aceria feketeistvani Ripka, 2016 4 Empodium 6-rayed....................................................................................5 - Empodium 5-rayed....................................................................................7 5 Ornamentation of prodorsal shield a network of lines............................... .. Aceria paradianthi Keifer, 1952 - Ornamentation of prodorsal shield not a network of lines......................................................6 6 Seta sc slightly longer than prodorsal shield, opisthosoma with 90 annuli............ .. Aceria moehringiae (Lindroth, 1899) - Seta sc distinctly shorter than prodorsal shield, opisthosoma with 63–68 annuli.................................................................................... Aceria ankarensis Denizhan, Monfreda, Cobanoglu & de Lillo, 2006 7 Prosternal apodeme distinct, sternal line present.............................................................8 - Coxae I narrowly separated, sternal line absent, and prodorsal shield without frontal lobe....... Aceria belarexi Ripka, 2016 8 Prodorsal shield semicircular........................................................................... ..9 - Prodorsal shield subtriangular........................................................................... 11 9 Seta 3a longer than 15 µm.............................................................................. 10 - Seta 3a short, 9 µm long........................................................ Aceria dianthi (Lindroth, 1904) 10 Prodorsal shield without frontal lobe, seta c2 35 long, female genital coverflap with 10 ridges.................................................................................................. Aceria gypsophilae Roivainen, 1950 - Prodorsal shield with a short frontal lobe, seta c2 52–55 long, female genital coverflap with 13–14 ridges.................................................................................................. Aceria wassalberti n. sp. 11 Prodorsal shield with short frontal lobe.............................................. Aceria colocense Ripka, 2013 - Prodorsal shield without frontal lobe............................................... Aceria cerastii (Nalepa, 1892)

Published as part of Ripka, Géza, 2016, A new Aceria species (Acari: Prostigmata: Eriophyoidea) from Minuartia frutescens (Caryophyllaceae) in Hungary, pp. 165-173 in Zootaxa 4189 (1) on page 171, DOI: 10.11646/zootaxa.4189.1.9, http://zenodo.org/record/165719