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文章简述了矢尖蚧属Ｕｎａｓｐｉｓ的研究概况，编制了该属在中国的种类检索表，记述了该属一新种，即南宁矢尖蚧 Ｕｎａｓｐｉｓ ｎａｎｎｉｎｇｅｎｓｉｓ， ｓｐ．ｎ．模式标本存西北农业大学昆虫博物馆． 该新种与Ｕ．ｅｍｅｉ相近似，区别是：新种雌成虫和二龄雌若虫的中臀叶互相靠近，段端部宽圆，前体部膜质，具后气门腺；而后种雌成虫和二龄雌若虫的中臀叶互相远离，端部窄圆，前体部略硬化，无后气门腺． 正模：■，广西南宁，３号植物，１９９６－ＩＸ－１３，曾涛采（玻片号：９６３１１）． 副模：１３■，１５个二龄雌蜕皮，７个一龄雌蜕皮，采集记录同正模．
In this paper, the research status of Unaspis, a genus of Unaspis, is described briefly. The genus of genus Unaspis nanningensis, sp. n. Mode specimens stored Northwest Agricultural University Insect Museum. The new species and U. emei similar, the difference is: the new adult female and second instar nymphs in the middle of the hip close to each other, the wide end of the segment, the precursor membranous, posterior glandular glands; and female and adult second instar nymphs Hips in the distance from each other, the narrow end of the round, slightly hardened precursor, no post-gland. Positive mode: ■, Nanning, Guangxi, No. 3 plants, 1996-IX-13, Zeng Tao mining (slides: 96,311). Vice-mode: 13 ■, 15 second-age female molting, seven first-age female molting, collection record with the positive mode.