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Dryocosmus Caspiensis
''Dryocosmus'' are a genus of gall wasps. They are cyclically parthenogenetic insects that induce galls on plants in the family Fagaceae. According to recent studies, the genus includes some species previously considered as belonging to the genus ''Chilaspis'', whereas ''Dryocosmus favus'' should be excluded of the genus. ''Dryocosmus'' and ''Chilaspis'' are closely related to the other oak gall wasp taxa (''Aphelonyx'', ''Plagiotrochus'', ''Pseudoneuroterus'', ''Trichagalma'', and some ''Neuroterus'' species) ''Dryocosmus kuriphilus'' is an invasive species in Europe and North America (originating from Asia) that endangers the chestnut trees.L.K.Rieske, Success of an exotic gallmaker, Dryocosmus kuriphilus, on chestnut in the USA: a historical account, EPPO Bulletin 37 (1), 172–174 (2007) Species * ''Dryocosmus archboldi'' Melika & Abrahamson, 2021 * ''Dryocosmus asymmetricus'' (split twig gall wasp) * ''Dryocosmus caspiensis'' * ''Dryocosmus cerriphilus'' * ''Dryoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gall Wasp
Gall wasps, also incorrectly called gallflies, are hymenopterans of the family Cynipidae in the wasp superfamily Cynipoidea. Their common name comes from the galls they induce on plants for larval development. About 1,300 species of this generally very small creature (1–8 mm) are known worldwide, with about 360 species of 36 different genera in Europe and some 800 species in North America. Features Like all Apocrita, gall wasps have a distinctive body shape, the so-called Petiole (insect anatomy), wasp waist. The first abdominal tergum (the propodeum) is conjoined with the Thorax (insect anatomy), thorax, while the second abdominal segment forms a sort of shaft, the Petiole (insect anatomy), petiole. The petiole connects with the gaster (insect anatomy), gaster, which is the functional abdomen in apocritan wasps, starting with the third abdominal segment proper. Together, the petiole and the gaster form the metasoma, while the thorax and the propodeum make up the mesosoma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
