白色的是什么蜘蛛?

2025-03-15 07:08:09
推荐回答(1个)
回答1:

蜘蛛目螲蟷科的通称。体长1~3厘米。螯肢发达,前端有几排刺组成的螯耙。多数种类仅有4个纺器。全球约500余种。穴居地下,洞内衬以丝膜。绝大多数穴口有可以开启的活盖,盖上有伪装。除捕食外,雌蛛很少离洞。但雄蛛徘徊寻找雌蛛。该科常见的为垃土蛛属的种类。分布在中国福建的里氏盘腹蛛形状奇特,腹部后端平截如磨盘状。
体长椭圆形,长约1厘米余。全身黑褐色。头胸部比腹部较大,口小,位于头端,适于吮吸;头胸部上面前端有单眼4对;下面有附肢6对,第1对螯状,第2对为脚须,似触角,雄者末节膨大成交配器。余4对为步足。胸部背面中央有U状沟。腹部卵圆形,有7对白色带纹,前腹面中央有生殖孔,并有生殖板覆盖。尾端有疣状纺锤突2对,尖端有小孔,内通纺绩腺,能分泌粘液,而抽丝。
穴居土中,抽丝作圆筒形的巢,上面有椭圆形的盖,可以启闭;常仰开其盖,俟其他小虫误入而捕食之。
【性味】
①《本草拾遗》:有毒。

螲蟷 (5张)

②《陆川本草》:咸,寒,有毒。
【功能主治】《本草拾遗》:主一切丁肿,附骨疽蚀等疮,宿肉赘瘤,烧为束和腊月猪脂敷之。亦可同诸药为膏,主丁肿出根。

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