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首页> 外文期刊>Entomotropica >Idiosomal setae analysis in Oligonychus peruvianus and Oligonychus perseae (Acari: Tetranychidae) from different hosts
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Idiosomal setae analysis in Oligonychus peruvianus and Oligonychus perseae (Acari: Tetranychidae) from different hosts

机译：来自不同寄主的橄榄木和橄榄木（Acari：Tetranychidae）的惯用语刚体分析

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摘要

The phytophagous mites, Oligonychus peruvianus (McGregor, 1917) and Oligonychus perseae Tuttle, Baker and Abbatiello, 1976 are considered occasional pests in several tropical crops. Due to morphological similarities between them, both species are difficult to differentiate. In this study, morphometrical and chaetotaxic analysis were made to discriminate O. peruvianus from O. perseae. Idiosomal length and width and idiosomal chaetotaxy were measured in O. peruvianus females collected on Manihot esculenta Crantz or Persea americana L. trees from Venezuela and then compared to O. perseae specimens from avocado trees from Costa Rica. Principal Component Analysis (PCA) of the idiosomal chaetotaxy showed existence of three distinct groups, the first group represented by O. peruvianus individuals collected in avocado trees; the second by O. perseae from avocado and the third by O. peruvianus from cassava plants. Our results confirmed taxonomic value of chaetotaxy as a tool to discriminate these mentioned Tetranychidae species.
机译：植食性螨Oligonychus peruvianus（McGregor，1917）和Perigonychus perseae Tuttle（Baker and Abbatiello，1976）被认为是几种热带作物中的偶发害虫。由于它们之间的形态相似性，两个物种很难区分。在这项研究中，进行了形态计量学和Chaetotaxic分析，以区分peruvianus O. perseae。在委内瑞拉的Manihot esculenta Crantz或Persea americana L.树上采集的秘鲁O. peruvianus雌性中，测量其惯用体的长度和宽度，并与哥斯达黎加鳄梨树的per。oseae标本进行比较。主成分分析的主成分分析（PCA）显示存在三个不同的组，第一个组由鳄梨树中采集的秘鲁O. peruvianus个体代表;第二种是鳄梨的O. perseae，第三种是木薯植物的O. peruvianus。我们的结果证实了木耳分类法的分类学价值，可以作为区分这些提到的四叶螨科的工具。

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