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.

本研究记述并图解了等毛跳虫属（Isotomiella Bagnall, 1939）的2个新种。首个新种为马塞多等毛跳虫（Isotomiella macedoi sp. n.），其描述基于雌雄标本，采自巴西里约热内卢州特雷斯波利斯市的塞拉多斯奥尔加伊斯国家公园（Parque Nacional da Serra dos Órgãos）；该新种与同属其他物种的鉴别特征为：第三胫跗节（tibiotarsus III）粗壮且端部钝圆，上唇（labrum）的2根前侧刚毛（chaetae）显著粗壮。第二个新种为瓦伊等毛跳虫（Isotomiella uai sp. n.），标本采自巴西米纳斯吉拉斯州卡埃特市的甘达雷拉山（Serra da Gandarela）；该新种与同属其他物种的鉴别特征为：触角第四节及背板（tergites）上具短感觉毛（sensilla），上唇前侧的2根刚毛粗壮，且具镰状弹器端爪（falcate mucro）。