Stigmella glutinosae (Stainton, 1858)

white-barred alder pigmy

on Alnus

Stigmella glutinosae: occupied mine on Alnus glutinosae

Alnus glutinosae, Belgium, prov. Hainaut, Chimay, Etang de Virelles, 2.ix.2018 © Stéphane Claerebout

Stigmella glutinosae: occupied mine on Alnus glutinosae

detail

Stigmella glutinosae: occupied mine on Alnus glutinosae

Despite the fact that this type of mines is considered full depth, the mine is virtually invisible at the underside of the leaf.

Stigmella glutinosae: occupied mine on Alnus glutinosae

Only in backlight is becomes apparent that in this mime the frass is coiled.

Stigmella glutinosae mine

Alnus glutinosa, Ackerdijkse Plassen

Stigmella glutinosae mine

Alnus glutinosa, Belgium, Viroinval

mine

Oviposition at the leaf underside, always against a vein. Then a full depth, fairly slender corridor, often several in a leaf. Frass line very variable, sometimes coiled, mostly more than on third of the width of the corridor. Pupation outside the mine.

host plants

Betulaceae, monophagous

Alnus glutinosa, cordata, incana, orientalis, subcordata, viridis.

phenology

There are two generations per year (Johansson ao, 1990a).

BENELUX

BE recorded (Phegea, 2009).

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

LUX not recorded (Fauna Europaea, 2009).

distribution within Europe

Entire Europe, except the Balkan peninsula and possibly Spain (Fauna Europaea, 2009); Cyprus (Barton, 2015a).

larva

Yellow, with a grey-brown patch on the prosternum (Johansson ao, 1990a). The larva mines venter-upwards (Emmet, 1983a). Abdominal segment 1 ventrally not spinulose (Johansson ea, 1990a).

synonyms

Nepticula glutinosae; Stigmella rubescens (Heinemann, 1871).

notes

It is not well possible to definitely discriminate a single mine from the one of Stigmella alnetella, unless a larva is available.

Erik van Nieukerken (pers. comm.) found the mine depicted below on Birch. The mine resembles St. luteella, but lacks the characteristic beginning. A study of the larval DNA showed that glutinosae was involved. Obviously, it now has to be established how frequently the species uses Birch as as host plant.

Stigmella glutinosae mine

Betula pendula, France, Villeneuve-sur-Cher, 30.7.2009; leg., ©, det. EJ van Nieukerken

references

Ahr (1966a), Barton (2015a), Bengtsson (2008a), Borkowski (1969a), Buhr (1935a), Buszko & Baraniak (1989a), Diškus & Stonis (2012a), Drăghia (1968a), Emmet (1983a), Gustafsson (1985a), Haase (1942a), Hartig (1939a), Hering (1957a), Huber (1969a), Huemer & Erlebach (2003a), Johansson ao (1990a), Klimesch (1936a, 1950c), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Kurz (2016a), A & Z Laštuvka (1997a, 2005a, 2011a), Matošević, Pernek, Dubravac & Barić (2009a), Michalska (1976a), Navickaitė, Diškus & Stonis (2011a, 2014a), van Nieukerken (1986a), van Nieukerken, A & Z Laštuvka (2004a, 2006a), van Nieukerken, Zolotuhin & Mistchenko (2004a), Nowakowski (1954), Robbins (1991a), Schütze (1931a), Skala (1939a, 1951a), Skala & Zavřel (1945a), Sønderup (1949a), Steuer (1995a), Szőcs (1977a, 1978a, 1981a), Zoerner (1969a, 1970a).

mod 26.viii.2019