Plant Parasites of Europe

leafminers, galls and fungi

Hylesinus fraxini

Hylesinus fraxini (Panzer, 1779)

ash bark beetle

on Fraxinus, etc.

Hylesinus fraxini: "bark rose"

“bark rose” (from WSL.CH)


In spring the female bores a horizontal gallery in the bark, depositing a series of eggs, each one in a separate chamber. The emerging larvae then each make a short vertical gallery from their egg chamber. Before she can oviposition the female goes through a period of maturation feeding. She the bores in the green bark of a young tree. Repeated infections by a number of females may induce cankerous swellings, called bark roses. Monogamous species.

host plants


Ailanthus; Corylus avellana; Fagus sylvatica; Fraxinus americana, angustifolia & subsp. oxycarpa, excelsior, pennsylvanica; Juglans regia; Malus domestica; Olea europaea; Pyrus communis; Quercus robur; Robinia pseudoacacia; Syringa vulgaris; Tilia.



distribution within Europe

(PESI, 2020).


Leperesinus fraxini; Hylesinus, Leperisinus, varius (Panzer, 1799).


Askew & Mifsud (2018a), Buhr (1964a), Compte (1981a), Dauphin & Aniotsbehere (1997a), Duffy (1953a), Garrido Torres & Nieves-Aldrey (1999a), Gatti (2011a), Lombardero (1995a), López Romero, Romón Ochoa, Iturrondobeitia Bilbao & Goldaracena Lafuente (2007a), Lukášová & Zimová (2015a), Marković (2013a), Marković & Stojanović (2015a), Mifsud & Knížek (2009a), Munroe (1926a), Nikulina, Mandelshtam, Petrov, ao (2015a), Ressl (2004a), Roskam (2019a), Schedl (1980a), Selmi (1987a), Tezcan & Sarıkaya (2024a), de Vere Graham & Gijswijt (1998a).

Last modified 8.v.2024