Smicronyx swertiae Voss, 1953
on Gentianella, Swertia

Gentianella germanica, Belgium, prov Namur, Nismes, RN les Abannets © Stéphane Claerebout

detail
gall
In Swertia a short-oval to fusiform, up to 6 mm long gall in the petiole or the lower part of the stem; in Gentianella a rotund, barrel shaped or fusiform, up to 8 mm long stem gall. Larvae from mid-June to early September. Pupation in the soil; emergence after 2-3 weeks.
host plants
Gentianaceae, monophagous
Gentianella ciliata, germanica; Swertia perennis.
synonyms
The species is not mentioned in the Fauna Europa (2014), not in the synonymy either.
references
Benedikt, Borovec, Fremuth, ao (2010a), Buhr (1964c, 1965a), Dieckmann (1986a, 1990a), Rheinheimer & Hassler (2010a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).
Last modified 23.iv.2023