Rocha-Filho L C, Rinaldi I M P
Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil, 14040-901.
Braz J Biol. 2011 May;71(2):359-64. doi: 10.1590/s1519-69842011000300004.
Although crab spiders are common in flowering plants, their relations with plant species and its floral traits have been poorly known in the Neotropics. Observations regarding plant habits, floral visitors and also floral characteristics such as anthesis, odour, shape, colour and floral resources were recorded in flowering plant species of an area of "Cerrado" on a 2 km long trail. Misumenops argenteus and Misumenops pallens accounted for 62.86% of the spiders captured on 22 flowering plant species. The plants Senna rugosa (Fabaceae), Styrax ferrugineus (Styracaceae) and Banisteriopsis campestris (Malpighiaceae), hosted, each one, about 10 to 17% of the total spiders collected and these plants had diurnal anthesis, bee-attractive flower colours such as yellow (S. rugosa), white (S. ferrugineus), and pink (B. campestris), poricidal anthers as well as being visited by bees which evidenced bee-pollination syndrome. This study is the first survey regarding crab spiders and their associations with plant species of the "Cerrado".
尽管蟹蛛在开花植物中很常见，但在新热带地区，它们与植物物种及其花部特征的关系却鲜为人知。在一条2公里长的小径上，对“塞拉多”地区开花植物物种的植物习性、访花者以及花部特征（如花期、气味、形状、颜色和花部资源）进行了记录。在22种开花植物上捕获的蜘蛛中，银白狡蛛和苍白狡蛛占62.86%。皱叶决明（豆科）、铁锈叶安息香（安息香科）和田野南美柴龙树（金虎尾科）这三种植物，每种植物上捕获的蜘蛛约占收集到的蜘蛛总数的10%至17%，这些植物花期在白天，具有吸引蜜蜂的花色，如黄色（皱叶决明）、白色（铁锈叶安息香）和粉色（田野南美柴龙树），花药具孔，且有蜜蜂访花，这证明了其具有蜜蜂传粉综合征。本研究是关于蟹蛛及其与“塞拉多”植物物种关联的首次调查。
