Table 4 in Two new species and one new record of Willowsia Shoebotham, 1917 (Collembola: Entomobryidae) from the Eastern Himalayan region of India

Table 4. Comparison of Willowsia arunachalensis sp. nov., W. cassagnaui Zhang, 2015, W. buski (Lubbock, 1870) and W. ieti Yosii, 1971. CharactersW. cassagnaui Zhang, 2015W. ieti Yosii, 1971W. buski (Lubbock, 1870)W. arunachalensis sp. nov.labral papillaeroundedconicalconical2–4 denticleslateral process of labial palplongshort?longtrochantral organ setaeabout 14<201016–17scales on Ant-I furculaabsent presentpresent presentabsent absentabsent presentHind unguiculaslanceolatetruncatelanceolatelanceolatemanubrial plaque setae?6?5anterior face of ventral tube (long ciliated setae)5+54+45+54+4chaetotaxych II2 setae in p12 setae in p12 setae in p11 setae in p1Abd. I3+32+23+32+2Abd. III (lateral setae)3334Abd. IV (central)7+77–8+7–85+58+8表4 阿鲁纳恰尔柳跳虫新种（Willowsia arunachalensis sp. nov.）、卡萨诺柳跳虫（W. cassagnaui Zhang, 2015）、布斯基柳跳虫（W. buski (Lubbock, 1870)）与伊蒂柳跳虫（W. ieti Yosii, 1971）的形态特征比对。各形态特征如下：1. 唇乳突（labral papillae）：卡萨诺柳跳虫为圆形，伊蒂柳跳虫为锥形，布斯基柳跳虫为锥形，新种具2~4个齿突；2. 下唇须侧突（lateral process of labial palp）：卡萨诺柳跳虫较长，伊蒂柳跳虫较短，布斯基柳跳虫不详，新种较长；3. 转器刚毛（trochantral organ setae）：卡萨诺柳跳虫约14根，伊蒂柳跳虫少于20根，布斯基柳跳虫10根，新种16~17根；4. 触角第一节弹器鳞片（scales on Ant-I furcula）：卡萨诺柳跳虫无，伊蒂柳跳虫有，布斯基柳跳虫无，新种有；5. 后爪（Hind unguiculi）：卡萨诺柳跳虫为披针形，伊蒂柳跳虫为平截形，布斯基柳跳虫为披针形，新种为披针形；6. 握器板刚毛（manubrial plaque setae）：卡萨诺柳跳虫不详，伊蒂柳跳虫具6根，布斯基柳跳虫不详，新种具5根；7. 腹管前区长纤毛刚毛（anterior face of ventral tube (long ciliated setae)）：卡萨诺柳跳虫为5+5，伊蒂柳跳虫为4+4，布斯基柳跳虫为5+5，新种为4+4；8. 第Ⅱ胸节毛序（chaetotaxy ch II）：卡萨诺柳跳虫p1位具2根刚毛，伊蒂柳跳虫p1位具2根刚毛，布斯基柳跳虫p1位具2根刚毛，新种p1位具1根刚毛；9. 腹部第一节（Abd. I）：卡萨诺柳跳虫为3+3，伊蒂柳跳虫为2+2，布斯基柳跳虫为3+3，新种为2+2；10. 腹部第三节侧刚毛（Abd. III (lateral setae)）：卡萨诺柳跳虫具3根，伊蒂柳跳虫具3根，布斯基柳跳虫具3根，新种具4根；11. 腹部第四节中央刚毛（Abd. IV (central)）：卡萨诺柳跳虫为7+7，伊蒂柳跳虫为7~8+7~8，布斯基柳跳虫为5+5，新种为8+8。