Mononychus punctumalbum (Herbst, 1784)

on Iris

Iris pseudacorus, Belgium, prov. Antwerp, Balen, de Most, 25.ix.2021 © Carina Van Steenwinkel: fruit with exit holes

opened fruit

damaged seeds

Iris pseudacorus, Belgium, prov. Antwerp, Laakdal, Varendonk, 14.vi.2022 © Carina Van Steenwinkel: young seed, with oviposition scar

Iris pseudacorus, België, prov. Limbourg, Zonhoven, Platwijers, 21.viii.2022 © Carina Van Steenwinkel: pupa (parasitized)

imago still in the seed

gall

the fruits look irregular and knobby. Inside some white weevil larvae that feed on the seeds. Pupation in the gall. When the weevils leave the gall conspicuous exit holes are left behind. Galling facultative.

host plants

Iridaceae, monophagous

Iris aphylla, foetidissima, x germanica, halophila, latifolia, longifolia, pallida, pseudacorus, sibirica, spuria.

According to Compte also Colchicum autumnale (Colchicaceae).

larva, pupa

See Skuhrovec ao.

references

Buhr (1964a), Compte (1981a), Dauphin & Aniotsbehere (1997a), Delbol (2013a). Dieckmann (1972a), Gültekin & Korotyaev (2012b), Lechapt (2015a), Morris (1982a), Rheinheimer & Hassler (2010a), Roskam (2009a), Scholze (1991a), Skuhrovec, Gültekin, Śmigala ao (2017a), Tomasi (2012a, 2014a), Ugarte San Vicente (2005a), Wojciechowicz-Żytko, Rogowska, Dobińska, ao (2016a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).