Dictyla humuli (Fabricius, 1794)

on Symphytum and other Boraginaceae

Dictyla humuli: imago

imago with deposited eggs on Symphytum officinale, Belgium, prov. Limbourg, Kinrooi, Stamprooierbroek, 25.v.2019 © Carina Van Steenwinkel

Dictyla humuli: eggs

row of inserted egg, Belgium, prov. Flemish Brabant, Diest, Halve Maan, 18.v.2019 © Carina Van Steenwinkel

Dictyla humuli: egg

egg, taken out

gall

suction damage; little diagnostic growth disturbances of the inflorescence and adjacent leaves.

host plants

Boraginaceae, oligophagous

Symphytum officinale.

Les numerous also on Echium vulgare, Myosotis scorpoioides and Pulmonaria longifolia.

phenology

Hibernation as imago.

synonyms

Monanthia humuli; M. symphyti (Vallot, 1829).

notes

species of wet habitats like river forelands and carrs.

references

Aukema & Hermes (2006a), Baugnée (2003b,c), Buhr (1964b, 1965a), Chłond & Gorczyca (2009a), Friess (1998a), Kment & Baňar (2012a), Máca (2012a), Malenovský, Baňař & Kment (2011a), Pagola-Carte & Zabalegui (2006a), Stehlík (2002a,b), Torma (2009a), Viskens, Bruers & Vercauteren (0000a), Wagner (1955a).