Cycloneuroterus is a genus of oak gall wasps from the family Cynipidae.
Species in this genus form galls on various Fagaceae in the Eastern Palearctic. The genus is named after one of the more common host plants (section Cyclobalanopsis), and their morphological similarity to the genus Neuroterus.
Description Cycloneuroterus belongs to a group of other genera in Cynipini which have a reduction or absence of the transscutal articulation. This transscutal articulation typically separates the mesoscutum from the complex formed by the scutellum and the axilla. Other genera in this group include Neuroterus, Trichagalma, Pseudoneuroterus, Cerroneuroterus, and Latuspina. Cycloneuroterus is distinguished from other members of this group by having distinct and complete carinae on the lateral side of the propodeum, similarly to the genus Dryocosmus.
Species in this genus form galls on various plant organs and are known from plants in the section Cyclobalanopsis of Quercus, the genus Castanopsis, and the genus Lithocarpus.
Species Known species are described from Taiwan and Japan.
The following are currently valid species in this genus:
Cycloneuroterus abei Melika & Tang, 2016 Cycloneuroterus akagashiphilus Wachi & Abe, 2012 Cycloneuroterus arakashiphagus Wachi & Abe, 2012 Cycloneuroterus ergei Tang & Melika, 2016 Cycloneuroterus fortuitusus Tang & Melika, 2011 Cycloneuroterus formosanus Tang & Melika, 2011 Cycloneuroterus gilvus Tang & Melika, 2016 Cycloneuroterus globosus Tang & Melika, 2016 Cycloneuroterus hisashii Wachi & Abe, 2012 Cycloneuroterus jianwui Tang & Melika, 2016 Cycloneuroterus lilungi Tang, Melika & Yang, 2011 Cycloneuroterus lohsei Melika & Tang, 2016 Cycloneuroterus longinuxus Tang & Melika, 2011 Cycloneuroterus lirongchiuae Melika & Tang, 2011 Cycloneuroterus megaformosanus Melika & Tang, 2020 Cycloneuroterus tumiclavus Tang & Melika, 2016 Cycloneuroterus uraianus Tang & Melika, 2016
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