Stigmella sakhalinella Puplesis, 1984 small birch pigmy Betula pendula, Belgium, prov. Liège, Villers-le-Bouillet © Jean-Yves Baugnée Betula pubescens, Overveen same mine, detail mine Oviposition at the underside of the leaf. Then a rather slender gallery, hardly widening, even towards the end. The corridor is not strongly contorted, not even in its first section; no browned […]
Stigmella sakhalinella Betula pubescens, Lettele, larva in the mine same larva, dissected out head and thorax, ventraal (left) and dorsal (right) The larva is yellow, with a black spot on the prothorax (darkly pigmented part of the central nervous system: Dziurzynski, 1957a). Also the ventral ganglia are quite conspicuous. The larva lies venter-upwards in the […]
silver birch synonym: Betula aetnensis, glutinosa Wallroth, oycowiensis Rchb., verrucosa organ parasitic mode stage note taxonomic group parasite leaf vagrant doubtful Thripidae Thrips alni stem borer Cerambycidae Anoplophora chinensis stem borer Curculionidae Xyleborinus attenuatus leaf vagrant main Thripidae Mycterothrips consociatus leaf predator Phlaeothripidae Haplothrips kurdjumovi leaf leaf spot anamorph Gnomoniaceae Gnomonia intermedia leaf leaf spot […]
downy birch synonym: Betula alba, borysthenica, carpatica, celtiberica, concinna, coriacea, lenta, murithii, odorata, populifolia, pubescens subsp. carpatica + czerepanovii + odorata + tortuosa, tortuosa organ parasitic mode stage note taxonomic group parasite flower hidden Thripidae Ceratothrips ericae leaf predator Aeolothripidae Aeolothrips melaleucus leaf vagrant Thripidae Drepanothrips reuteri leaf leaf spot anamorph Gnomoniaceae Gnomonia intermedia leaf […]
synonym: Betula jacquemontii organ parasitic mode stage note taxonomic group parasite leaf vagrant Tenthredinidae Euura viridis leaf miner Gracillariidae Parornix betulae leaf miner Nepticulidae Stigmella sakhalinella leaf pustule uredinia telia Pucciniales Melampsoridium betulinum
organ parasitic mode stage note taxonomic group parasite seeds vagrant Carabidae Amara communis flower hidden Thripidae Ceratothrips ericae leaf predator Phlaeothripidae Haplothrips kurdjumovi leaf predator Aeolothripidae Aeolothrips melaleucus flower hidden Thripidae Thrips vulgatissimus leaf predator Aeolothripidae Aeolothrips versicolor leaf vagrant Geometridae Abraxas sylvata leaf vagrant Geometridae Lomaspilis marginata leaf vagrant Geometridae Ennomos fuscantaria 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 […]
