A taxonomic review is provided for the Section I of the inquiline gallwasp genus Synergus, including the description of a new species from China, S. deqingensis Pujade-Villar, Wang & Chen sp. nov. and redescription of all previously known species of the section from the that region. Synergus jezoensis Uchida & Sakagami, 1948, a species previously considered of uncertain status from Japan, is treated herein as a valid species, and is redescribed and reported for the first time from China. Andricus mukaigawae(Mukaigawa, 1913) and its inquiline, S. japonicus, are reported for the first time from China. A key is provided to all four East Palearctic species in Section I of Synergus.
Juli Pujade-VillarYi-Ping WangXue-Xin ChenJun-Hua He
New species of gallwasps, Andricus flavus sp. nov., and its inquiline related to its gall, Saphonecrus fabris sp. nov. are described. Both species are included and illustrated their distribution and biology here. The type materials are deposited in the Parasitic Hymenoptera Collection, Zhejiang Agricultural and Forest University, Lin'an, China, and University of Barcelona Barcelona, Spain.
