Elachista dispunctella
The larvae feed on "Festuca" species , including "Festuca ovina" and "Festuca duriuscula" . 
<triplet> Festuca <subj> Festuca ovina <obj> taxonomic type <triplet> Festuca ovina <subj> Festuca <obj> parent taxon <triplet> Festuca duriuscula <subj> Festuca <obj> parent taxon