Plant Parasites of Europe

leafminers, galls and fungi

Hemichroa australis

Hemichroa australis (Audinet-Serville, 1823)

on Alnus, Betula

Hemichroa australis: larva on Betula pendula

Betula pendula, 18.viii.2014 © Stéphane Claerebout

Hemichroa australis: larva on Betula pendula

larva, frontal

Hemichroa feeding pattern

Alnus glutinosa, comparison of the feeding pattern of a young larva of H. australis (at left), and that if H. crocea (at right) (from Sottyk).

parasite

Oviposition scars in he form of an isolated oval swelling of the petiole. The later larva lives free; especially the younger larva demonstrates a characteristic feeding pattern, a group of sinusoidal slits,

host plants

Betulaceae, monophagous

Alnus glutinosa, incana, viridis; Betula pendula, pubescens.

distribution within Europe

(PESI, 2019).

synonyms

Hemichroa alni (Linnaeus, 1767).

references

Benson (1961a), Buhr (1964a), Hoop (1983a), Macek (2012c), Pschorn-Walcher & Altenhofer (2000a), Roskam (2019a), Savina & Chevin (2012a), Schedl (1976a, 2003a), Sottyk (2002a), Stritt (1952a), Taeger, Altenhofer, Blank, ao (1998a), Zombori (1976a).

Last modified 20.v.2020