Plant Parasites of Europe

leafminers, galls and fungi

Stigmella svenssoni parasite

Stigmella svenssoni (Johansson, 1971) orange-headed pigmy mine Oviposition at the underside of the leaf. The mine is a remarkably long, not very slender corridor. Frass line of inconstant width, mostly occupying more than half the width of the gallery. hostplants Fagaceae, monophagous Quercus petraea, robur. phenology In Scandinavia larvae have been found in August, in […]

Stigmella samiatella parasite

Stigmella samiatella (Zeller, 1839) chestnut pigmy on Castanea, Quercus Castanea sativa, Tilburg, de Kaaistoep, 19.ix.2020 © Paul van Wielink Castanea sativa, Bergen op Zoom, 31.vii.2012 (egg at the underside, exit slit at upper side of the leaf) Quercus robur, Naardensebos, 11.viii.2002 mine Oviposition mostly at the leaf underside, almost always close to a thick vein. […]

Stigmella samiatella larva parasite

Stigmella samiatella Castanea sativa, Malden; leg Henk ten Holt; pronotum with dorsal sclerite (also the head capsule is visible, withdrawn into the prothorax). left: detail of the spinulation; right: segment 10, dorsal (without a group of spinules in front of seta D). Larva pale yellow (Borkowski, 1972b). The morphology has been described and illustrated in […]

genus Quercus host plant genus

organ parasitic mode stage note taxonomic group parasite inquiline Cynipidae Synergus subterraneus dead wood borer Cerambycidae Stenopterus similatus dead wood borer Cerambycidae Stenopterus creticus inquiline Cynipidae Synergus dacianus leaf scale Pseudococcidae Heliococcus bohemicus stem scale Pseudococcidae Trionymus newsteadi dead wood borer Cerambycidae Ropalopus lederi dead wood borer Cerambycidae Stictoleptura picticornis dead wood borer Cerambycidae Grammoptera […]

Quercus petraea host plant species

sessile oak synonym: Quercus borealis Gand., sessiliflora, sessilis organ parasitic mode stage note taxonomic group parasite inquiline Cynipidae Synergus reinhardi leaf bud gall agamous generation Cynipidae Andricus conglomeratus stem gall agamous generation Cynipidae Dryocosmus cerriphilus leaf bud gall Cynipidae Andricus bakrachus fruit gall sexual generation Cynipidae Andricus grossulariae leaf bud gall agamous generation Cynipidae Andricus […]

Quercus robur host plant species

pedunculate oak synonym: Quercus aesculus, concordia, fastigiata, filicifolia, granbyana, haas, laciniata, lanuginosa Beck., pedunculata, pendula, purpurea, pyramidalis organ parasitic mode stage note taxonomic group parasite inquiline Cynipidae Synergus umbraculus inquiline Cynipidae Synergus hayneanus inquiline Cynipidae Synergus reinhardi leaf bud gall agamous generation Cynipidae Andricus conglomeratus leaf bud gall Cynipidae Andricus curtisii leaf bud gall agamous […]

Quercus host plants

Quercus oak (For a dichotomous table for galls on Quercus by Hans Roskam click here) Dichotomous table for leafminers 1a mine ending with an excision => 2 1b blotch, may have a short, quickly widening preceding corridor => 7 1c blotch, preceded by a long, slender initial corridor => 15 1d corridor from start to […]