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张掖地区的张掖市小河乡和临泽县沙河、新华乡的枣树,1995年受到枣树星粉蚧(Heliococcuszizyphi Borchs)的危害。据初步调查,以沙河乡发生最重,小河乡次之,新华乡零星发生。枣树星粉蚧属于粉蚧科、星粉蚧属。雌成虫椭圆形,长2.9 mm,宽1.6 mm,被有白色蜡粉和玻璃状细长蜡丝。墨绿色或肉红色。触角9节,第1节短粗,第2、3节匀而长,第4节至第8节近端部略膨大,第9节中基部粗壮,端部削尖。足3对,发达,基节粗壮,腿节粗长,胫节、跗节细长,爪弯,爪下齿明显;跗冠毛短,爪冠毛超过爪尖。具胸气门两对,漏斗形。腹脐1个,发达。前后背裂很大。肛环在背末,有6根长环毛;环孔在内侧1列,外侧2～3列。尾瓣突出,其腹面有硬化条,端毛长于环毛.刺孔群18对,除 C_3具3
Zhangye Prefecture, Zhangye City, Xiaohe Township and Linhe County, Shahe, Xinhua Township jujube tree, in 1995 by Jujube star mealybug (Heliococcus zizyphi Borchs) hazards. According to a preliminary investigation, Shahe Township occurred the heaviest, Xiaohe Township times, Xinhua Township sporadic occurrence. Jujube star mealybugs belonging to the Division of powder scales, star scales is a member of scale. Female adults oval, length 2.9 mm, width 1.6 mm, was a white wax and glassy elongated wax wire. Dark green or flesh-colored. Tentacles 9, Section 1 stubby, Section 2, 3 even and long, Section 4 to Section 8 slightly enlarged proximal part, Section 9 thick base, the tip sharpened. 3 pairs of feet, developed, sturdy section, coarse leg section, tibia, slender slender, claw bend, jaw under the teeth clear; With chest valve two pairs, funnel-shaped. Abdominal umbilical 1, well-developed. Before and after a large backache. Anal ring in the back, there are 6 long-haired hair; ring hole in the inside of a column, the outside of 2 to 3 columns. Caudal valve prominent, its ventral sclerosis strip, the terminal hair longer than the ring hair punctures 18 pairs, with the exception of C_3 with 3