The stridulatory setae of Acanthoscurria suina (Araneae, Theraphosidae) and their possible role in sexual communication: an experimental approach

Iheringia. Série Zoologia

Fernando Pérez-miles²  Laura Montes De Oca²  Rodrigo Postiglioni²  Fernando G. Costa¹ 

[1] ,Facultad de Ciencias Sección Entomología Montevideo,Uruguay

关键词: Stridulatory setae;    Tarantula spiders;    Acanthoscurria suina;    behavior;    Setas estridulatorias;    tarantulas;    Acanthoscurria suina;    comportamiento;   

DOI  :  10.1590/S0073-47212005000400004

来源: SciELO

【 摘 要 】

Specialized setae placed on proximal segments of appendages in tarantulas have been related to sound production (stridulation), used in defense or sexual communication. The surface structure of called stridulatory setae of Acanthoscurria suina Pocock, 1903 was studied by SEM. Three morphological types of setae were recognized and at least two of them could be involved in stridulation. Their role in sexual communication was tested by experimental removal. Our results showed no differences in the sexual success between the setaeless and control individuals. Consequently, a defensive function for stridulatory setae seems to be more likely than a sexual function.

【 授权许可】

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