Plant Parasites of Europe

leafminers, galls and fungi

Atemelia torquatella

Atemelia torquatella (Lienig & Zeller, 1846)

northern ermel

on Betula, etc.

Atemelia torquatella: mines on Betula pendula

Betula pendula, Belgium, prov. Antwerp, Balen, de Most, 1.ix.2020 © Carina Van Steenwinkel

Atemelia torquatella: mines on Betula pendula

young larvae are yellow

Atemelia torquatella: mines on Betula pubescens

Betula pubescens, Belgium, prov. Antwerp, Balen, de Most, 2.x.2020 © Carina Van Steenwinkel

Atemelia torquatella: mines on Betula pubescens

Betula pubescens, Belgium, prov. Limbourg, Genk, de Maten, 24.ix.2016 © Carina Van Steenwinkel: much silk on the leaves

Atemelia torquatella mine

Betula pubescens, Edem Hindekamp, 14.ix.2007

Atemelia torquatella mine

same mine, underside

mine

A very clear blotch, without preceding corridor, usually harbouring several crimson marbled larvae (young larvae are yellow!). The mine mostly begins near the base of the midrib. Most frass is ejected from the mine, but part of the grains are trapped in a loose spinning below the leaf, that has been made by the larvae during excursions. The larvae can leave their mine and restart elsewhere. They hibernate individually in a discoid cocoon.

host plants

Betulaceae, Ulmacee; narrowly polyphagous

Alnus; Betula nana, pendula, pubescens; Ulmus “campestris”, minor.

In Britain normally only on Birch. However, in Schotland a larva has been found mining on Myrica gale, that completed its development on that plant (Beavan & Heckford, 2012a).

phenology

Larvae in August – September (Agassiz, 1996a).

BENELUX

BE recorded (Phegea, 2009).

NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2009).

LUX not recorded (Fauna Europaea, 2009).

distribution within Europe

From Scandinavia and Finland to the Pyrenees, Italy, and Macedonia, and from Britain to northern Russia and Hungary (Fauna Europaea, 2009).

larva

pupa

Illustrated by Patočka (1997a), Patočka & Turčáni (2005a).

references

Agassiz (1996a), Bachmaier (1965a), Beavan & Heckford (2012a), Bengtsson & Johansson (2011a), Buhr (1935a), Corley, Rosete, Gonçalves ao (2016a), Grandi (1931a, 1933a), Hartig (1939a), Hering (1921b, 1927b, 1930e, 1957a), Huisman, Koster, van Nieukerken & Ulenberg (2004a), Kozlov, van Nieukerken, Zverev & Zvereva (2013a), Kuchlein & Donner (1993a), Kuchlein, Gielis, Huisman, ao (1988a), Kuchlein & de Vos (1999a), Lhomme (1934b), van Nieukerken, Gielis, Huisman, Koster, Kuchlein, van der Wolf & Wolschrijn (1993a), Patočka (1997a), Patočka & Turčáni (2005a), De Prins & Steeman (2011a, 2013a), De Prins, Steeman & Sierens (2015a), Ritter (1931a), Schütze (1931a), Skala (1951b), Skala & Zavřel (1945a), Szőcs (1977a, 1981a), Viramo (1962a), Wörz (1957a), Zoerner (1969a).

Last modified 18.i.2021