TABLE 3. Comparison between Crossodonthina species with 2 in Species groups of Crossodonthina Yosii (Collembola: Neanuridae), with the description of a new species and a new record for C. bidentata Luo & Chen
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TABLE 3. Comparison between Crossodonthina species with 2+2 eyes. bidentatahainanalangshanensismontanaquadridentata sp. nov.Mandible rami32235Mandible basal teeth25214Maxilla outer lamellabranchedtrifurcated apicallyWith inner filamentsWithout inner filamentsbifurcated apicallyChaetae on tubercle Oc32333Di tubercles on Abd. VfusedseparateseparateseparateseparateChaetae on furcular remnant5(6)43–564Number of chaetae on Dl of Th. II (besides of ms)3+s2+s2+s3+s2+s
表3 具2+2只眼的十字齿螋属(Crossodonthina)物种间的形态比较 研究物种依次为:bidentata、hainana、langshanensis、montana、quadridentata sp. nov.(四齿新种) 上颚支数量:3、2、2、3、5 上颚基齿数量:2、5、2、1、4 下颚外叶性状:依次为分支状、顶端三分叉、具内丝、无内丝、顶端二分叉 Oc瘤突上的刚毛数量:3、2、3、3、3 腹部第5节Di瘤突状态:愈合、分离、分离、分离、分离 叉突残迹上的刚毛数量:5(6)、4、3–5、6、4 胸节II背侧(Dl)刚毛数量(除ms外):3+s、2+s、2+s、3+s、2+s



