Data from: New species of Isotomiella Bagnall, 1939 from Southeast of Brazil (Collembola, Isotomidae)

Two new species of the genus Isotomiella Bagnall, 1939 are described and illustrated, the first: Isotomiella macedoi sp. n., based on males and females, from the “Parque Nacional da Serra dos Órgãos” (Teresópolis municipality, State of Rio de Janeiro) differs from the other by tibiotarsus III thickened and blunt and two antero-lateral chaetae of labrum strongly thickened. The second species Isotomiella uai sp. n. from “Serra da Gandarela”, (Caeté municipality, State of Minas Gerais) differs from the other by presence of short sensilla on antennal IV and tergites, two anterolabral chaetae thickened and falcate mucro.本文记述并图示了等长跳虫属（Isotomiella Bagnall, 1939）的2个新种。首个新种为马塞多等长跳虫（Isotomiella macedoi sp. n.），其模式标本采自巴西里约热内卢州特雷斯波利斯市的塞尔拉杜斯奥尔斯国家公园（Parque Nacional da Serra dos Órgãos），基于雌雄两性标本描述；该新种与该属其他已知类群的区别在于：第Ⅲ胫跗节粗壮且端部钝圆，且上唇的2根前侧刚毛显著加粗。第二个新种为乌艾等长跳虫（Isotomiella uai sp. n.），采集自巴西米纳斯吉拉斯州卡埃蒂市的甘达雷拉山脉（Serra da Gandarela）；该新种的鉴别特征为：第Ⅳ触角节及背板上具短感觉毛，上唇的2根唇前刚毛加粗，且具镰状端齿。