Tetranychidae - Systematic & Applied Acarology Special...

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Systematic & Applied Acarology Special Publications (2000) 4, 19-35. 19 Mites of Schizotetranychus (Acari: Tetranychidae) from moso bamboo in Fujian, China ZHI-QIANG ZHANG 1 , YANXUAN ZHANG 2 & JIANZHEN LIN 2 1 Landcare Research, Private Bag 92-170, Auckland, New Zealand; e-mail: ZhangZ@landcare.cri.nz 2 Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, China Abstract Three species of the genus Schizotetranychus (Acari: Tetranychidae) are recorded and described from the leaves of the moso bamboo ( Phyllostaychs pubescens ) in Fujian, China. They are Schizotetranychus nanjingensis Ma & Yuan, S. bambusae Reck and S. tenuinidus Zhang & Zhang sp. nov. A key for separating the females of these three species is given. Notes on the biology of these mites are also provided. Key words : Spider mites, Schizotetranychus , new species, bamboo, China Introduction In southern China, the moso bamboo ( Phyllostaychs pubescens ) is a forestry crop. Each year, the forestry industry based on this crop in China generates 17 billion Yuan and earns US$500 million from export. The bamboo forests in Fujian province, the largest bamboo growing area in China, have recently been damaged by phytophagous mites to various extents (Zhang et al. 1998). Exten- sive surveys were carried out during 1997-1999, and collected mites of differ- ent families were identified. This paper reports on three species of Schizotetranychus Trägårdh collected from the leaves of the moso bamboo.
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20 Systematic & Applied Acarology Special Publications (2000) 4 Materials and methods Specimens of Schizoetranychus were collected from leaves of the moso bam- boo in 1997 and 1998 in various forests in Fujian, China. Branches were cut and stored in plastic bags during transport to the laboratory. Leaves were then examined under a dissecting microscope. Mites were mounted in Hoyer's medium on slides and dried in an oven at 60 o C for two weeks. The specimens were studied using a Nikon E800 microscope. Line drawings were prepared with the aid of a drawing tube attached to the microscope. Measurements were made in micrometers (μm). Terminology follows that of Lindquist (1985). Notes on Schizotetranychus from bamboo in China A total of 134 species of Schizotetranychus have been described from around the world, 21 of them from China, including Hong Kong and Taiwan (Bolland et al. 1998). A few Chinese species were reported generally from Bambusaceae with no generic or specific information of the hosts: S. bambusae Reck from Beijing, Shaanxi, Jiangsu, Guangxi and Guangdong (Wang 1981; Ma et al. 1984), S. emaiensis Wang from Sichuan, S. minutes Wang from Fujian, and S. elongatus Wang & Cui from Yunnan (Wang 1983; Wang et al. 1985; Wang & Cui 1991). S. nanjinensis is the only species specifically reported to be present on the moso bamboo and other bamboo plants (Yu & Shi 1991).
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Tetranychidae - Systematic & Applied Acarology Special...

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