Pyropteron triannuliformis (Freyer, 1843)
on Rumex
gall
about 1.5 cm long swelling of a root; inside a single off-white caterpillar or a pupa.
hostplants
Polygonaceae, monophagous
Rumex acetosa, acetosella, aetnensis, crispus, obtusifolius, palustris.
Occasionally Geranium sanguineum.
larva, pupa
Larva and pupa are extensively described by Bąkowski.
synonyms
Bembecia, Chamaesphecia, Sesia, Synansphecia, triannuliformis.
references
Bąkowski (2013b), Bella, Bartsch & Laštůvka (2017a [“triannuliforme”]), Buhr (1965a), Dauphin & Aniotsbehere (1997a)m Grossrieder & Keary (2004a), Houard (1908a), Laštůvka & Laštůvka (2001a), Predovnik (2018a), Pühringer (1996a), Toševski in litt. (2018).