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首页> 外文期刊>Journal of Insect Science >Defensive gin-trap closure response of tenebrionid beetle, Zophobas atratus, pupae
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Defensive gin-trap closure response of tenebrionid beetle, Zophobas atratus, pupae

机译：拟南芥甲虫，Zophobas atratus，p的防御性杜松子酒封闭反应

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摘要

Pupae of the beetle Zophobas atratus Fab. (Coleoptera: Tenebrionidae) have jaws called gin traps on the lateral margin of their jointed abdominal segments. When a weak tactile stimulation was applied to the intersegmental region between the two jaws of a gin trap in a resting pupa, the pupa rapidly closed and reopened single or multiple gin traps adjacent to the stimulated trap for 100– 200 ms. In response to a strong stimulation, a small or large rotation of the abdominal segments occurred after the rapid closure of the traps. Analyses of trajectory patterns of the last abdominal segment during the rotations revealed that the rotational responses were graded and highly variable with respect to the amplitudes of their horizontal and vertical components. The high variability of these rotational responses is in contrast with the low variability (or constancy) of abdominal rotations induced by the tactile stimulation of cephalic and thoracic appendages. Since the closed state of the gin traps lasts only for a fraction of a second, the response may mainly function to deliver a “painful” stimulus to an attacker rather than to cause serious damage.
机译：甲虫Zophobas atratus Fab的。 （鞘翅目：Tenebrionidae）下颚在其联合腹部的侧缘上有称为杜松子酒陷阱的下颚。当对静止的的杜松子酒诱捕装置的两个颚之间的节间区域施加微弱的触觉刺激时，the迅速闭合并在受激诱捕装置附近重新打开单个或多个杜松子酒诱捕装置100-200 ms。在强烈刺激的刺激下，诱捕器快速关闭后，腹部的旋转发生了大小变化。对旋转过程中最后一个腹部的轨迹模式的分析表明，旋转响应相对于其水平和垂直分量的振幅是渐变的并且高度可变。这些旋转反应的高变异性与通过触觉刺激头颈部和胸部附属物引起的腹部旋转的低变异性（或恒定性）相反。由于杜松子酒诱捕装置的关闭状态仅持续一秒钟的时间，因此响应可能主要起到向攻击者传递“痛苦”刺激的作用，而不是造成严重损害。

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