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 EuropeDryocosmus kuriphilus. Data sheets on quarantine pests, European and Mediterranean Plant Protection Organization (2006) and North America (originating from Asia) that endangers the chestnut trees.
Species Dryocosmus albidus Weld, 1944 Dryocosmus archboldi Melika & Abrahamson, 2021 Dryocosmus cannoni Schwéger & Tang, 2016 Dryocosmus archboldi Melika & Abrahamson, 2021 Dryocosmus caputgrusi Tang & Schwéger, 2016 Dryocosmus carlesiae Tang & Melika, 2011 Dryocosmus caspiensis Melika, Sadeghi, Atkinson, Stone & Barimani, 2008 Dryocosmus cerriphilus Giraud, 1859 Dryocosmus crinitus Schwéger & Tang, 2016 Dryocosmus destefanii Cerasa & Melika, 2018 Dryocosmus dubiosus Fullaway, 1911 (two-horned gall wasp) Dryocosmus favus Beutenmüller, 1911 Dryocosmus floridensis (Beutenmüller, 1917) Dryocosmus gigas (possibly in Andricus or Feron) Dryocosmus harrisonae Melika & Tang, 2016 Dryocosmus hearni Melika & Tang, 2016 Dryocosmus hualieni Schwéger & Tang, 2016 Dryocosmus israeli (Sternlicht, 1968) Dryocosmus jungalii Melika & Stone, 2010 Dryocosmus konradi Tang & Melika, 2016 Dryocosmus kuriphilus Yasumatsu, 1951 Dryocosmus liui Pang, Su & Zhu, 2018 Dryocosmus liyingi Melika & Tang, 2016 Dryocosmus mayri (Müllner, 1901) Dryocosmus mikoi Melika, Tavakoli, Stone & Azizkhani, 2006 Dryocosmus minusculus Weld, 1952 (pumpkin gall wasp) Dryocosmus moriius Tang & Melika, 2016 Dryocosmus nitidus (Giraud, 1859) Dryocosmus pentagonalis Melika & Tang, 2011 Dryocosmus quadripetiolus Schwéger & Tang, 2016 Dryocosmus quercuspalustris (Osten Sacken, 1861) (succulent oak gall wasp) Dryocosmus rugosus Kieffer, 1899 Dryocosmus salicinai Schwéger & Tang, 2016 Dryocosmus taitungensis Tang & Melika, 2016 Dryocosmus testisimilis Tang & Melika, 2011 Dryocosmus triangularis Melika & Tang, 2011 Dryocosmus zhuili Liu & Zhu, 2015
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