Dichotomous table for gallers on Betula by Hans Roskam 1a On parts above ground => 2 1b Roots, especially close to stem, with conspicuous, irregular, ± nodule-shaped, massive proliferations. B. pendula, pubescens: Agrobacterium tumefaciens 2a On catkins or fruits => 51 2b On vegetative plant parts => 3 3a On leaves => 18 3b On […]
downy birch synonym: Betula alba, carpatica, celtiberica, concinna, coriacea, lenta, murithii, odorata, populifolia, pubescens subsp. carpatica + czerepanovii + odorata + tortuosa, tortuosa organ parasitic mode stage note taxonomic group parasite flower borer Tortricidae Epinotia immundana leaf hidden Tortricidae Archips podana leaf hidden Tortricidae Epinotia brunnichana stem scale Coccidae Pulvinaria vitis unknown unknown Tortricidae Epinotia […]
organ parasitic mode stage note taxonomic group parasite leaf hidden Tortricidae Gypsonoma imparana leaf hidden Tortricidae Ancylis uncella leaf vagrant Pyralidae Matilella fusca leaf hidden Tortricidae Acleris roscidana leaf hidden Tortricidae Metendothenia atropunctana leaf hidden Pyralidae Cryptoblabes bistriga leaf hidden Tortricidae Epinotia brunnichana leaf hidden Gelechiidae Carpatolechia alburnella leaf hidden Yponomeutidae Paraswammerdamia lapponica leaf vagrant […]
Betula birch (For a dichotomous table for galls on Betula by Hans Roskam click here) Dichotomous table for leafminers 1a mine ends in a round or oval excision => 2 1b blotch without a preceding corridor (or this corridor < 3 mm) => 6 1c blotch preceded by a corridor => 23 1d corridor from […]
Heliozela resplendella (Stainton, 1851) alder lift Alnus glutinosa, Nieuwendam excision mine The mine begins in one of the more heavy veins of a leaf. Boring in the vein the larva descends towards the midrib. Often in this process the larva moves from one thick vein to another by way of a hair-thin transverse corridor. Once […]
New for the fauna of Belgium Heliozela hammoniella .
