title: A new genus and species of Macrosiphini (Hemiptera, Aphididae) from China, living on Isodon eriocalyx.
abstract: The aphid genus Nigritergaphis gen. n. is described, and N. crassisetosa sp. n. on Isodon eriocalyx (Dunn) Kudô (Lamiaceae) from Yunnan, China is described and illustrated. The new species curls and distorts the leaves of this important traditional Chinese medicinal plant, and is evidently specific to this host. Holotype and paratypes are deposited in the National Zoological Museum of China, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
authors.affiliation: Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, No. 1-5 Beichen West Road, Chaoyang District, Beijing 100101, P.R. China ; University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing 100049, P.R. China.
authors.forename: Bin
authors.initials: B
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, No. 1-5 Beichen West Road, Chaoyang District, Beijing 100101, P.R. China ; Zhongguancun High School of Beijing, No.1-14 Kexueyuan South Road, Haidian District, Beijing 100080, P.R. China.
authors.forename: Ya-Meng
authors.initials: YM
authors.lastname: Lou
authors.affiliation: Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, No. 1-5 Beichen West Road, Chaoyang District, Beijing 100101, P.R. China.
authors.forename: Ge-Xia
authors.initials: GX
authors.lastname: Qiao
keywords: Aphididae; China; Nigritergaphis; new genus; new species; taxonomy