云南链壶蚧属—新种(蚧总科:壶蚧科)

A NEW SPECIES OF ASTEROCOCCUS(COCCOIDEA: CEROCOCCIDAE)FROM YUNNAN PROVINCE, CHINA

本文记述了采自云南昆明链壶蚧属Asterococcus Borchsenius一新种Asterococcus oblatus Xue et Zhang,文中对其雌成虫和一龄若虫形态特征进行了详细描述和图示。

A new species of the genus Asterococcus Borchsenius was found in Kunming, YunnanProvince. The adult female and first instar are described and illustrated. The typic speci-mens of the new species are kept in the Collections of the Department of Plant Protection,Shandong Agricultural University. Asterococcus oblatus Xue et Zhang, sp. nov. (fig. 1~2) The new species is similar to Asterococcus schimae, the distinguished characters are asfollows: Adult femals: (1) Developed female tests are flat globose, top centre is concave. (2)Dorsal smaller 8-shaped pores are more and spaced throughout cephalothorax and ante-rior abdominal segments. (3) On the dorsal posterior abdominal segments, the large8-shaped pores are arranged in 2 transversal bands. The first band is in width of4~8 pores, with wavy posterior margin. Some small 8-shaped pores scatter between them. First instar: In each submarginal row of 8-shaped pores there are two close 8-shapedpores just on the segment on which the sixth 8-shaped pore of marginal row is located. Holotype, 1♀, Poratype, 42♀♀, 100 first instars, on Michelis fuscata, KunmingYunnan, 1987-Ⅶ, 1988-Ⅳ.