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蛛形纲;Arachnida »
柄腹亚纲 »
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刺足蛛科 »
名字:光滑奥塔蛛
学名:Otacilia lubrica
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雄蛛体长2.20–2.32。雄蛛体长2.20:头胸部长1.17,宽0.98,褐色,背面中央隆起,无明显放射状条纹。颈沟模糊,中窝明显。眼的直径与测量:前中眼0.04,前侧眼0.07,后中眼0.04,后侧眼0.07;前中眼间距0.03,前中侧眼间距0.02,前侧眼间距0.15,后中眼间距0.07,后中侧眼间距0.06,后侧眼间距0.26,前后侧眼间距0.05。中眼域长0.16,前边宽0.12,后边宽0.14。额高0.09。螯肢褐色,前齿堤多毛,3齿,后齿堤2齿。颚叶棕色,长大于宽。胸板黄色,长大于宽。腹部椭圆形,长1.03,宽0.79,灰黑色,前端具一窄的、小的背盾,末端具3个“人”字型斑纹。步足黄褐色,各节端部无环纹,步足测量:I3.97(1.06,0.43,1.08,0.94,0.46),II3.48(0.95,0.40,0.83,0.82,0.48),III3.00(0.82,0.31,0.59,0.76,0.52),IV3.15(1.12,0.35,0.94,1.07,0.67),足式:1243。腿节I–IV具1根背刺,腿节I具3根内侧刺,腿节II具1根内侧刺,胫节I具6对腹刺,胫节II具6根内侧腹刺,4根外侧腹刺,后跗节I具4根内侧腹刺,3根外侧腹刺,后跗节II具4根内侧腹刺,3根外侧腹刺。触肢腿节腹面具突起;RTA宽大,腹面观“W”型;DTA长,指状,端部尖,略向下弯曲;生殖球梨形,精管黑色,强烈硬化,环绕膜状引导器;中突小,三角形;插入器短,尖略钝。雌蛛体长2.70–2.84。雌蛛(副模)体长2.80:头胸部长1.18,宽1.03。眼的直径与测量:前中眼0.05,前侧眼0.07,后中眼0.05,后侧眼0.07;前中眼间距0.03,前中侧眼间距0.02,前侧眼间距0.15,后中眼间距0.07,后中侧眼间距0.06,后侧眼间距0.27,前后侧眼间距0.05。中眼域长0.16,前边宽0.12,后边宽0.16。额高0.07。腹部长1.62,宽1.11,前端具两个椭圆的灰色斑点,末端具三个“人”字型斑纹。步足黄色,无环纹,步足测量:I3.65(0.88,0.33,1.01,0.95,0.48),II3.44(0.93,0.42,0.83,0.80,0.46),III3.16(0.88,0.37,0.60,0.82,0.49),IV4.35(1.12,0.44,0.90,1.22,0.67),足式:4123。腿节I–IV具1根背刺,腿节I具3根内侧刺,腿节II具2根内侧刺,胫节I具6对腹刺,胫节II具6根内侧腹刺,5根外侧腹刺,后跗节I具4根内侧腹刺,3根外侧腹刺,后跗节II具4根内侧腹刺,3根外侧腹刺。外雌器插入孔小;粘液囊椭圆形、不透明;附腺圆形;连接管短,位于附腺和纳精囊之间;纳精囊球形;受精管短,位于纳精囊的端部。